00
Skeeter ZX180 |
Q:
Todd, I live in Nashville also. I just bought the 2000 ZX180
which has the |
00
150 Yamaha |
the 150 VMax Ox66 with a
25M prop. I haven't had it on the water. |
VMax |
Questions....without
knowing any performance results, what would your |
|
recommendations be as to
the motor/jackplate position? Where would you expect |
25"
Yamaha |
the rpms and psi to be
with your recommended setup. Thanks...... |
10"
jackplate |
A: At 3" under pad you should look for 5400 with the
25" and 57-80 with a |
|
23 PS Yamaha.....either
will be about 62-64 mph. Psi will be 18#. |
|
It's a nice rig.....you'll
be happy with it. |
97
Skeeter 202C |
Q:
Guess I have the same question everyone else does. Is this the
best I can do? |
97
200 Yamaha ProV |
I am throwing a rooster
tail out about 100 feet behind the boat that is primarily on |
|
the driver's side.
The boat handles better when I had the propshaft 3" below the |
26XL
Ballistic |
pad, but as a speed
fanatic, I want the best I can get. I also have the stock 25M |
10"
jackplate |
prop that I can go to. The
rooster tail is not present with that prop at the 3" below |
2.25"
below pad |
setting. Your
suggestions, sir. You sound like the man in the know. |
72
mph @ 6000 |
I'll defer to you. |
18+
psi |
A:
I've never had luck with Atwoods Ballistic
props....however....lowering the |
|
engine till the tail drops
with the Ballistic might prove to be effective...2.25" is |
|
awfully high for the
Skeeter. |
|
The Yamaha PS props have
always been my main choice for the Skeeters....... |
|
especially the 202's.....25
for the 200 and 27 for the 225's. A well setup 202 with |
|
the 200 PV Yam is a 70 mph
platform....maybe 72....I have a sneaking suspicion |
|
that you're off a little
due to slippage. |
|
I'd lower the 26" at
least a 1/2" and try to get the tail way down...if the Ballistic |
|
won't shed the tail I'd go
back to the 25M. |
96
Skeeter 200ZX |
Q:
Todd, I want to install a hydraulic jackplate with more setback.
Should I |
96
200 Yamaha |
purchase a 12"
hydraulic or can I bolt a 6" hydraulic up to my existing 6"
manual? |
|
A: That can be kinda tricky with the heavier Yamaha...I
have a 10" RapidJack |
25"
Spinelli |
and a 4" hydraulic
Land & Sea on my Bullet....but my 2.5 only weighs 350 lbs..... |
6"
jackplate |
I think in your case I'd
recommend a new 12" hydraulic plate. |
|
|
96
Skeeter ZX180 |
Q:
Todd, I have no problems with this boat whatsoever, but was just
wondering |
96
175 Merc EFI |
if you might have any
suggestions as to dial it in a little closer. It runs 72 mph |
|
(2 people loaded fish
ready and 76 mph (myself fish ready). The plate is a 6" |
25"
Laser II |
Walker, jacked all the way
up. I've wanted to try a 25 Tempest. Would it perform |
6"
jackplate |
better than what I'm
running? By the way, I do feel that I could turn a 27". The |
1
1/2" below pad |
boat will set you back in
the seat on the holeshot. |
72-76
mph @ 5900 |
A:
The Laser II can be good for holeshot but usually leaves a little to
be desired |
32#
psi |
when total lift and speed
come into play. |
|
In your case I don't
really have any recommendations.....most 180's around here |
|
run 150's and struggle to
see 65.....I've had no dealings with this setup over 70 |
|
so I'd be afraid to suggest
anything that might make you go backwards....a |
|
perfect setup with no slip
and a 25 at 5900 is good for 74 mph...with slippage from |
|
a Laser II you should be
at 68-70 light....to sum up....I wouldn't change a thing if |
|
I were running that well. |
00
Skeeter ZX195 |
Q:
What do you think I can do to get more mph and rpm. From what I have
read |
00
200 Yamaha |
on this site, I should be
around 68 mph at 5500 rpm. My boat has a great holeshot |
|
and a good midrange.
Any suggestions? |
12"
jackplate |
A:
Somethin' ain't right! You have all the tools....I suspect the
throttle isn't opening |
3.5"
below pad |
up all the way or an
engine problem....from the numbers you've given on setup I |
64
mph @ 5200 |
can't add anything.....it
seems right. |
22#
psi |
You'll need about 5700 to
see 68 on gps....but is should be easy. Have a mechanic |
|
check out the engine
setup. |
00
Skeeter ZX185 |
Q:
From what I've seen other guys running, I seem to be in the ball park,
but I'm |
00
150 Yamaha |
just curious if I can
tweak it out a little more without going crazy. By myself I hit |
VMax 066 |
the 66-67 speedo mark,
with a partner, extra 200#s, I usually hit around 64-65. |
|
My main concern is my rpms
lacking. Holeshot, ride, turning capability is all great, |
25"
Yamaha PS |
but I'm wondering if the
rpms need to be a little higher? I haven't messed with the |
12"
jackplate |
jackplate yet, but
wondering would tweaking the prop a little help, or raising the |
65
mph @ 5200 |
plate help? Like I
said, I'm happy with the performance so far, just wondering if |
18#
psi |
there is anything else I
can squeeze from this setup? Thanks in advance........ |
|
A:
R's are too low.....start raising the plate....15 psi of H20 is
min.....I really |
|
think you're going to need
to drop to a 23" Yamaha ProSeries tho....having the |
|
25 thinned a little may
help, it will cost bucks and have no guarantee it will help. |
|
If raising the plate
doesn't get your to 5500 min. without going below 15 psi, |
|
you'll need the 23". |
96
Skeeter ZX190 |
Q:
Todd, I recently purchased this boat and want to know, in your
opinion, if I can |
96
200 Merc EFI |
gain any more speed by
raising/lowering the engine or, if necessary, by changing |
|
props. The boat
consistently goes 69 mph (gps) with a full load of fuel, 2 people |
25"
Trophy |
and a moderate amount of
tackle & gear. Also, the elevation where the runs were |
12"
jackplate |
made is 2000 feet.
I'm getting a little bit of porpoising and am having to learn how |
2.5"
below pad |
to prevent the boat from
walking, but when the fastest runs were made, the boat |
69
mph @ 5850 |
was smooth and steady.
Thanks in advance........ |
25#
psi |
A:
I'd say you're exactly where you're supposed to be! A 25"
Yamaha may be a |
|
tad faster than the 25
Tempest.....but I'd want to try it before buying. |
|
For a loaded boat at your
elevation 69 is great....69 is good for that rig here in TN |
|
at 600 ft....get your
driving skills honed while by yourself and you'll be in the low |
|
70's.....and not passed
very often! |
01
Skeeter ZX200 |
Q:
I would like to get a few more mph's out of my boat. I was
wondering what I |
01
200 Yamaha HPDI |
should look at in the way
of props? 25? Or, should I first raise my motor up a |
|
little? Basically, I
need somewhere to start. This is my first fiberglass boat so I
just |
27"
Yamaha |
need a few suggestions on
where to start. Thanks for your help....... |
12"
jackplate |
A:
I think the 25 will put you where you need to be....68 mph is what I'd
say is |
4.75"
below pad |
going to be tops for the
HPDI....so you're not too far off now... |
65.1
mph @ |
Of course, raising the
engine is free....give it a try also...see if you can get it over |
5200/5300 |
5500 without venting or
excessive slip. |
|
|
01
Skeeter ZX225 |
Q:
Todd, I am about to purchase a 2001 Skeeter with a Yamaha 200 HPDI and |
01
200 Yamaha HPDI |
was wondering about what
prop I should start out with? I have the choice of |
|
prop I want and wanted to
get a rough idea at the size I may need to start with. |
12" jackplate
|
Hope to get the boat by
Oct.16 and get started on the break in of the motor. |
|
The dealer said the boat
runs about 72 mph with a 4 blade 27" pitch. |
|
A:
I'm not familiar with Yamahas 4 blade props....the 3 blades are
among the best. |
|
Now....if the 200 HPDI was
on a 202 Skeeter it wouldn't run 72....and being |
|
on the 225 is only going
to hurt that much more....this hull needs a 225 HP engine |
|
or a 250..... |
|
The 200 HPDI seems to be
ok so far...but no one has made any comment about |
|
it being stronger than a
VMax.....so.....I think 67 mph gps is about the best you'll |
|
see on the bigger
Skeeter....I also think a 25" Yamaha ProSeries 3 blade will be |
|
the biggest prop you can
run. |
|
If it were me......and it
ain't.....I'd either get the 202 with the 200 HPDI or I'd get |
|
the 225 with a 225
min......resale is the consideration here...plus....I don't think it |
|
will be long till Yamaha
intro's a new 225 HPDI. |
97
Skeeter ZX202C |
Q:
Todd, I had a 25" Trophy Plus which would turn to about 5450 @
61-62 mph. |
97
200 Yamaha |
I feel that the 25"
Tempest Plus should turn around 57-5800. Can I raise the motor |
|
any more? I'm
getting a drop to about 15-17# psi in sweeping turns. Just put
in a |
25"
Tempest Plus |
new impeller, mechanic
said engine looks great inside and out. Shouldn't I be able |
10"
jackplate |
to get about 68 mph from
this boat? |
2
3/4" below pad |
A:
The Tempest Plus isn't necessarily faster than a non PVS....as
a matter of fact |
63.5
mph @ 5600 |
the old A45 series was the
fastest of the Tempests....the A46 PVS was the slowest |
20#
psi |
and the A47-48 were faster
than the 46's but still slower than the 40 and 45. |
|
Anyhow....I'd probably
choose the 25" Yamaha ProSeries prop myself....but you |
|
can still come up
some.....17-18 in the straights with 20% drop in the turns is ok..... |
|
unless you get a hot horn. |
01
Skeeter ZX225 |
Q:
I'm running 68 mph with 40 gal of fuel, me and a partner, and full
livewells. |
01
225 Yamaha |
My problem is that I hear
from other people and Skeeter owners that I should be |
|
running 72-75 mph gps. I
don't have any experience in adjusting jackplates. |
27"
Yamaha Perf XL |
This is my second boat and
I bought this boat because I like the layout and thought |
12"
jackplate |
it would run just a bit
slower than a TR21 but now I'm as fast as a 520 Ranger and |
3
1/2" off transom |
I know my boat is 1680#
empty but I feel there is more performance from my boat |
Propshaft
4" |
in just adjusting the
jackplate. Are my feelings right, can you help me in adjusting |
below
pad. |
my motor height and
jackplate and what do you think of the potential of this boat |
68
mph @ 5500 |
running 72-75 gps with
jackplate adjustment or am I going to have to start some |
22-24#
psi |
prop modifications or get
another type. Please help me in adjusting the motor and |
|
jackplate first and then I
will run it and see what we get and then if I can't get speed |
|
let's think about the
prop. |
|
A:
Based on the numbers I feel you are too low....the current components
you have |
|
are what I'd
run.....except for the XL PS prop.....the jury is out on whether it's
a |
|
better heavy boat prop
than the old ProSeries Yam prop. |
|
The water pressure minimum
I run on the 225 3.1's is 18 psi.....Yamaha's can run |
|
VERY high.....and run best
high.....22-24 psi gives us a lot of room to come up. |
|
There is no guarantee
simply coming up will cure everything....but....we need to have |
|
the engine operating at
57-5800+ rpms to make all the power it has to offer. |
|
Raise the engine 1/4"
at a time and keep NOTES on EVERYTHING!, water |
|
pressure, rpms,
everything....... |
|
I think you are about
1" too low but we're going to come up a 1/4" at a
time....and |
|
we're going to do sweeping
turns to make sure we maintain a min. of 15# psi in the |
|
turns. |
|
Out goals here need to be
in reason.....a loaded 202/3.1 L 225 with a 27" Yam XL |
|
is going to be a 70-72 mph
boat.....empty it's a 75 mph boat.....GPS not speedo. |
|
I assume you are an
experienced Hi speed driver.....that will play a big part in |
|
overall performance.....my
Bullet will run over 90......but not with my partner driving |
|
it.....he is a full 10 mph
slower than me.....but it's a 90 mph boat. |
|
Start bring it up......and
tell me how we're doing! |
99
Skeeter ZX185 |
Q:
Todd this is Donald again. I mailed you a couple of times before and
still am |
99
150 Yamaha EFI |
getting it dialed in.
The speed above was with 2 people and gear, (me & partner |
|
weigh 200# apiece). When
I'm by myself I can get 62.9 but the humidity was |
25"
ProSeries |
down slightly that day.
Would the extra person kill two mph and is the humidity to |
12"
jackplate |
blame? I think I have my
propshaft measured right and another ZX185 owner gave |
4"
below pad |
me some of his
measurements but they're not reacting to mine like they are to his, if |
60.9
@ 5400/5500 |
he actually is doing those
speeds. He says he gets around 63 with 2 people and |
16#
psi |
gear and 65 to 66 by
himself. About my engine height, what would you suggest? |
|
I lower it much more and
my exhaust will be touching the water trimmed all the |
|
way under. I'm going
to get it right and it seems to be getting better each time. |
|
I try all of your
suggestions and really thank you for your time with us non setup |
|
experts. |
|
A:
I wouldn't be concerned about the exhaust level with the water....it's
relieve ports |
|
and not the actual outlet.
Worst thing happens is that you have to rev it a couple of |
|
times after a long idle. |
|
I'd like to see you try a
23" Yamaha.....I think the added rpms might bring the 150 |
|
alive.....you're about
where the combo you have is going to run....I answer a lot of |
|
these so if you've tried
the 23" forgive me. |
97
Skeeter ZX202 |
Q:
I still feel there's more speed somewhere in this boat. When I
get on plane the |
99
200 Yamaha |
prop sounds like it
cavitates. On WOT I'm not throwing any "rooster tail"
but when |
|
I barely turn it left my
water pressure dips to about 5 psi. I need help. |
25"
Yamaha PS |
A:
My experience with your exact boat is that you have about 3 more mph
to get.... |
10"
jackplate |
when did you last have an
impeller installed? You shouldn't be too high so I'm |
65
mph @ 5600 |
wondering about the water
pump....if it gets hot at all it forms in the shape of the vane |
17#
psi |
direction and loses its
ability to maintain pressure. |
|
|
97
Skeeter ZX202 |
Q:
I feel like I should be getting more speed out of this boat. I
don't think there's |
99
200 Yamaha |
much cup in the prop, I
don't know if the prop was modified or never had much cup. |
|
I'm turning 5800 rpm and
every once in a while hit the rev limiter. I'm GPS'ing 58 in |
25"
Yamaha ProS |
calm water and 61 in a
little chop. To me it just seems slow. |
10"
jackplate |
A:
Yep....you have excessive slip. At 5800 you should be at 70+.
22 psi seems |
59-61
mph @ 5800 |
very good and that the
engine isn't too high...but I think you may need to lower some. |
22#
psi |
Has the prop ever been
damaged? The factory 25 PS Yamaha is an excellent prop. |
|
Borrow another one if
yours has ever been dinged or worked and compare results. |
01 Skeeter ZX225
|
Q:
Would like to get 5600 out of boat. I raised the motor 1/2 inch
and got 5100 |
01 225 Yamaha
|
out of her, but she was
chinewalking pretty bad at the top end. Really didn't have |
|
much time to play with it
so left it as it had been. |
27"
Yamaha ProS |
A:
I can't help but feel the 27" is way too much prop for the
big Skeeter. A 25" |
12"
jackplate |
Yamaha should do much
better...until you can control the chinewalk you'll never |
68
mph @ 4900 |
know exactly what works
and what doesn't. |
20#
psi |
|
|
|
96
Skeeter 190ZX |
Q:
I originally was running a 6" jackplate. The boat seemed to
want to porpoise |
86
150 Yamaha |
at WOT just a bit.
It was not a big deal, and did not do it all the time. I bought
the |
|
hull used and had the
motor that I had purchased separately. The engine had hardly |
25"
Yamaha ProS |
any hours on it.
Anyway, I called Skeeter and asked them if my slight porpoising |
10"
jackplate |
and sorry holeshot could
be coming from the 6" jackplate. He told me to put a
10" |
69
mph @ 5800 |
on and I did it today.
I picked up 3 mph and 200 rpm. My question is....even |
17#
psi |
though the Yamaha I have
now is like new, how much of a speed difference should |
|
I see by putting a newer
175 hp motor on it? The motor I have now is very strong |
|
and people can't believe
how fast the boat would run even when it had the 6" plate |
|
on it. Thanks in
advance. |
|
A:
I'm honestly not sure you'd gain anything.....those are impressive
numbers for the |
|
150. In my
opinion.....for what it's worth....is that your hull with a 150 is
good for |
|
about 63 mph and with a
175 is good for about 67-68......so you've already outdone |
|
my expectations.
In all honesty same or no gain. |
00
Skeeter ZX185 |
Q:
Todd, I am trying to get jackplate right. I was running 5100 rpms and
raised |
00
150 Yamaha |
motor, now running 5400
rpms but speed dropped 2 mph. Boat does not chine at |
VMax |
all now, is it too high or
do I need to go up further. Boat still has good holeshot |
|
but new rpms are with
motor trimmed all the way up. Before I would start to chine |
25"
ProSeries |
but not bad. Do I
need to get it back to where it was and have prop detuned? |
12"
jackplate |
Just playing with it,
trying to get it the best it can be. Thank you! |
61
mph @ 5400 |
A:
The first guess would be that you might be a tad high....just
for grins, go up a tad |
17#
psi |
more and see if speed
drops off more and rpms climb. It probably won't help... |
|
but you can say you tried. |
|
Now.....before anything
else.....try a 23" Yamaha prop....trying it is free and you'll |
|
know if it worked or not
before modifying the 25". You'll probably have to drop |
|
the jackplate some no
matter what if you have developed that much slip. |
00
Skeeter SX186 |
Q:
I got my Skeeter from the dealer with the VMax mounted on
the second hole |
00
150 Yamaha |
down. I don't have a
jackplate or a water pressure gauge. I'm pulling 62 mph @ |
VMax |
5200 rpms, owner's manual
states I should be getting 5500 rpms max. If I raise the |
|
engine to the third hole
down would this raise my rpms to the max? Also, do you |
25"
Yamaha |
think the water pressure
would be ok at the 3rd hole? (If I got a jackplate I would |
62
mph @ 5200 |
install a water pressure
gauge). I heard that if your engine doesn't run at max rpms |
|
you're bogging it down and
it will shorten the life. I know I won't get white knuckle |
|
speed but I wouldn't mind
picking up a few mph's. Thanks........ |
|
A:
The Skeeters run a pretty good amount of setback when the
factory mounts the |
|
plate.....usually 10"
or 12"....I think that's a tad excessive myself and would |
|
recommend a 8"
RapidJack.....if the cables have enough slack to accomodate |
|
this much plate....you
could wind up with a 6" or even 4" if the cables won't allow |
|
more. |
|
Get the h2o gauge NOW!
Before adjusting a thing....this will be the cheapest |
|
insurance you have ever
bought. Next...running at 5200 won't shorten life...it may |
|
add a few hours
actually....but you're not making full power at this low rpm setting. |
|
You could leave the engine
where it is and go to a 23" ProSeries Yamaha prop..... |
|
and gain no speed but have
more power due to 200-250 more rpms....you could get |
|
the gauge and raise 1 hole
on the transom and probably gain 1 mph and 100-150 |
|
rpm.....or the best choice
is add the plate. Set the propshaft at 3" under pad,
keep |
|
the 25", get it
adjusted to the max and gain 2-3 mph and run 5500....to see if you |
|
have cable for the 8"
plate just pull all the excess cable from the transom to the engine |
|
to make sure there's
enough. |
|
I'd get a hotfoot
also....when I'm Governor of Tennessee, all boats over 100 hp will |
|
have to have one ;) |
97
Skeeter ZX202C |
Q:
Just got the boat. It's got a 25" Trophy small hub.
Also has a hotfoot, I'm not |
97
200 Yamaha |
sure if it's getting full
throttle or needs engine height adjustment. I'm getting these |
|
numbers with myself (170#)
and less than 1/2 fuel. I have a Laser II 25" 3 blade. |
25"
Trophy |
Should I try it with some
height adjustment? I also have a 27" Tempest. Any
info |
12"
jackplate |
would be appreciated! |
4"
off transom |
A:
The standard for your boat is the 25" Yamaha
ProSeries....the 25" Tempest |
61
mph @ 5450 |
being the Merc version.
I don't see a reason why the 25" Trophy wouldn't do well |
19-21#
psi |
tho....I think you need to
jack the motor up some tho. The Yam will run forever at |
|
18# psi....and the Yam
should spin the 25" Trophy to 5700 with no problem. |
|
The 27" will be too
much and the 25" Laser will have no lift and will be the
absolutely |
|
wrong prop. I think
you can adjust the 25" Trophy to where you want it to be. |
96
Skeeter 190 ZX |
Q:
Porpoises badly at all levels of trim, concerned with rpms.
Motor height has |
01
175 Merc EFI |
been raised height to keep
10# psi water pressure minimum. Do I lower motor, if |
|
so to what point.
What prop should I be running? |
24" Turbo
|
|
6" jackplate
|
A:
Don't change anything till you get another prop. I'd put my hands
on a 25" |
63 mph @ 6000
|
Tempest first. Keep
rpms to 5500 plus and h20 at 12 psi. I wouldn't run the 175 |
10# psi
|
past 5800 rpm. |
|
|
00
Skeeter ZX185C |
Q:
Just curious if there is a way to improve my top end speed? Is
the stock 25" |
00
175 Yamaha |
prop the best for all
around performance? The boat is very fast, I pass a lot of |
|
bigger rigs. |
25"
stock prop |
|
12"
jackplate |
A:
I'd say you are running excellent! Wouldn't change a thing! |
67-68
mph @ |
|
5500-5600 |
|
|
|
01
Skeeter ZX190 |
Q:
Several things don't seem to figure. New boat, in 3rd hour of
break in. |
01
150 Yamaha |
Will rpms pick up as time
is put on engine? Water pressure seems low, considering |
HPDI |
I'm probably only going a
true 60 or so. Also, with this setup, from factory, |
25" Yamaha PS
|
I'm getting porpoising at
low speed. Can I get more speed and correct the |
12" jackplate
|
porpoising or do I just
have to correct one? |
3" off transom
|
A:
The water psi is fine at 17#, I like 18 better, but 17 is ok.
I don't know if the |
67 mph @ 5200
|
HPDI will pickup after
break in or not......the Mercs come retarded for the first hours |
17# psi
|
and then pickup when break
in is complete. If it doesn't come alive you're going to |
|
have to drop to a 23"
PS Yamaha prop.....23M. |
|
I wouldn't be concerned at
this point about the porpoising....get it broke in and we'll |
|
start adjusting the setup
and it should help. If you have a hotfoot make sure it is |
|
adjusted to give WOT also. |
00
Skeeter ZX 185 |
Q:
I was wondering if this was a good speed or if it needs work.
This is with a |
00
150 Yamaha |
tournament load and 2
people in it. The speed and rpms are where it is chining. |
VMax |
When it starts chining the
water pressure drops to about 16 psi. Will this hurt it? |
25" ProSeries
|
I also want as much speed
as I can get. |
12" jackplate
|
A:
You can't justify any adjustments till you learn to control the
chine...in my |
62 mph @ 5200
|
opinion the rpms are too
low and you probably need a 23" Yamaha.....but once you |
19# psi
|
can drive it you may be on
up there rpm and speed wise. |
|
|
00
Skeeter ZX 185 |
Q:
I have a problem with excessive ventilation in short turns in the
river. I have tried |
00
150 Yamaha |
trimming down at different
settings and can't seem to get it out of a turn without |
|
running real slow (25 to
30 mph). The boat seems to handle real well coming out of |
25" prop
|
the hole and also does
well otherwise. I was wondering if I need to adjust the |
12" jackplate
|
jackplate down or what to
get better handling in turns. |
64 mph @ 5300
|
A:
The H20 psi and rpms look like you're low
enough....but...lowering the engine |
18# psi
|
is about the only way to
cut venting underway in turns. Drop it about a 1/2" and see |
|
if it improves...if not,
drop another 1/2"....if still no improvement, it'll be time to
add |
|
some cup....but not to the
25" ProSeries Yamaha....it'll take a 23" with cup to keep |
|
the rpms where it makes
power. Drop it and give me a shout back..... |
98
Skeeter ZX202 |
Q:
Would a 4 blade prop help with hard steering and holeshot? Also,
if this will |
98
200 Yamaha |
help what pitch and brand
do you suggest? |
|
A:
The 25M ProSeries Yamaha prop is generally the best prop going
for the |
25" Yamaha
|
202/200 combo. When
you say holeshot is bad....if it blows out during holeshot it |
70 mph @ 5600
|
can be linked to hard
steering (torque steer)....you'd be too high. |
18# psi
|
The rpms and water psi
show that you're probably not too high, so I'd guess it bogs |
|
on holeshot. You can
try a 25" Trophy by Merc on the Yamaha...the small hub |
|
version will let you spin
the rpms on up there during holeshot as well as removing |
|
PVS plugs if necessary.
A skeg mounted torque tab will eliminate almost all of your |
|
torque steer....lowering
the engine would help it also....but cost speed and rpms. |
99
Skeeter ZX185C |
Q:
I emailed you about my problem before and you said my prop may be
fouled. |
99
150 Yamaha |
I got a new 25"
ProSeries and it seemed to help some of my handling problems but |
VMax |
the speed just doesn't
seem to be there. It gets out of the hole good, but I thought |
|
I could get better on top
end. The speed I mentioned was by myself with a light |
25" Yamaha ProS
|
load. Some people I
talk to say this speed is pretty good for a 150 and some say it |
12" jackplate
|
could be a little better.
Maybe the jackplate? It is the factory plate and I don't know |
63.5 mph @ 5800
|
if it has been tinkered
with. Any help would be greatly appreciated. |
19# psi
|
A:
I'm perplexed....5800 with 19# psi is good, but the speed for
those rpms and |
|
pitch should be almost 70.
12" is a lot of plate for a hull as heavy as the Skeeter.... |
|
but I know they use this a
lot and the Skeeters run well. |
|
This is what I
think...lower the plate 2 times at a 1/2" each time...see it it
lowers |
|
your rpms to about 5700
but increases speed to 65-66. 66 is about what this hull |
|
has done in the past with
an 8" plate. I think there is some there to gain fairly
easily. |
96
Skeeter ZX200 |
Q:
Is my jackplate too high? I also come out of the hole slow fully
loaded. I tried |
96
200 Merc |
interchanging the PVS
plugs and found that the largest ones are best. The boat is |
|
fast, but I want it to go
faster. Do I have the right prop? I am currently running a |
25" Tempest
|
large hub 25"
Tempest. I have a 25" Trophy small hub, but it ran the
motor at |
10" jackplate
|
6200-6300 rpm fully
loaded. How is performance affected between a large hub and |
Prop 1/2" below pad
|
a small hub? Please
help.......... |
71 mph @ 6000
|
A:
The h20 psi looks like the engine isn't too low.....but rpms for
speed look like |
21# psi
|
your not completely hooked
up. The large hub will carry a load better and reduce |
|
prop slip during
holeshot...the small hub should let you spin more rpms on holeshot |
|
therefore being faster ouf
of the hole. Pull the plugs completely out of your prop and |
|
add one at a time if it
vents badly at holeshot. If it were mine, I'd lower it about |
|
a 1/2" and use the
small hub 25" Trophy for lift and holeshot. |
00
Skeeter ZX202 |
Q:
Ok, first off, I have a gps and did use it once and my speedo
is actually slower |
00
225 Yamaha |
than the gps by about 2
mph at all speeds....however the day that I was using it was |
|
extremely windy and had
about 3 ft sells and it was myself, weighing 220# and my |
27" Yamaha
|
my buddy at 250# and about
40 gals of gas and full tackle. I did hit 70 very quickly |
12" jackplate
|
on the gps but had to get
out of it because it was just way too rough and getting out |
Propshaft 2.5 - 3"
|
of hand. My question
is: could I benefit from raising the motor more and maybe |
below the pad.
|
going to a 28" prop?
Right now the motor is raised 1" on the jackplate and the prop |
|
is as listed. I'm
just curious if I could get a couple more mph out of it. I
talked to |
80 mph @ 6300
|
some prop places and they
do all the math and tell me that I have a good running |
22# psi
|
boat at somewhere around
8-9% slip which is good and the holeshot is amazing at |
|
about 4 sec to plane. What
about the Mazco RE over hub. What about a 4 blade? |
|
Any info would be
appreciated. |
|
A:
Man, you're smokin! 6300 does allow some room for more pitch....as
you |
|
obviously know
though...you don't have much of a choice in the 28" and up range. |
|
The HP4 is an unknown
quantity by me...have zero experience with this prop, the |
|
RE4 Mazco would be
unsatisfactory due to the fact that the Skeeter ain't no |
|
lightweight....a TX load
would kill it. I think your next move might be in the direction |
|
of the 28"
Trophy....good holeshot and it should cost you 250-300 rpms..... |
|
putting you right back to
6000 where the engine will live a little longer. |
|
The one constant to
performance mods is that you just have to try them to know |
|
what they change....pen
and paper never tell the whole story. |
96
Skeeter 200ZX |
Q:
I want to bring the rpms down to 5800-6000 and keep the same
performance. |
96
200 Merc |
|
25" Trophy
|
A:
A 26" Trophy will reduce rpms to 6000 and add speed.....win/win
situation. |
12" jackplate
|
|
74 mph @ 6200
|
|
99
Skeeter ZX185C |
Q:
I get some chine walking at top speed and the boat wants to porpoise
real bad |
99
150 Yamaha |
when slowing down. I
was also wanting to know if I am getting good speed out of |
VMax |
my Yamaha with the prop
detuned. Also is that too many rpms for this motor? |
|
I bought the boat used and
in excellent condition. I usually fish with a partner and a |
25" Yamaha
|
sort of light load. |
ProSeries |
A:
Your setup is not very efficient by the numbers you've given.
The 25" |
12" jackplate
|
ProSeries at 5900 should
yield about 71 mph. Has the prop been damaged or just |
Propshaft 4.5" below
|
reworked? Either
way, since the water pressure is good I wouldn't think you're way |
63.9 mph @ 5900
|
too high.....but you have
an excessive amount of slip.....if I were to guess, I'd say |
|
your prop's fouled. |
|
5900 rpm is in a livable
range...and efficient 5700 would be better though. |
|
I've turned Yamahas well
past 6000 in the past with no adverse effects. |
00
Skeeter ZX185 |
Q:
The jackplate is set to 1.25" on the port side and 1.75" on
starboard. |
00
150 Yamaha EFI |
The boat porpoises with
very little trim and pulls to the right (if you let go of the |
|
steering wheel). The
counter fin is set all the way to the right. Is correcting the |
12" jackplate
|
mis-alignment of the
jackplate causing this to happen? If so, to make the adjustment, |
|
is just loosening the
outside screws on the jackplate and then turning the center bolt |
|
clockwise to raise the
motor? |
|
A:
If you have a 1 piece jack it can't be off from side to side.
More than likely |
|
it's a manufacturing flaw
or the measuring decals are off. You need to make sure |
|
though and get it cured
immediately if it is truly off that far. |
|
As for the
adjustment....loosen the side bolts and raise or lower the engine with
the |
|
center adjusting
bolt.....I don't know what plate you have though. |
|
The cavitation torque tab
does very little to relieve steering torque...when you're up |
|
and running it's out of
the water....a skeg mounted tab will relieve the most torque.... |
|
lowering the engine will
help also, but could cost speed. |
99
Skeeter ZX190C |
Q:
Boat had severe porpoising when purchased, dealer made jackplate
changes, |
00
150 Yamaha |
and right now boat has
excellent holeshot and planing stability. |
|
Question is....when at
moderate speed (30-45 mph), water pressure is 20#. |
|
When running 50+ the
pressure drops to 15#. Is this enough to protect engine, |
|
dealer says I am OK.
Would like your opinion. |
|
A:
I would like to see the Yamaha at 18+ but 15# straight and in the
turns should |
|
be fine. |