Thread: help needed please...
07-21-2007, 02:04 PM #1
help needed please...
since i bought my gp1200r 2000 it has not been right..
feels like it has very very bad cavitation out the hole and lacks power and some revs top end..
has ppk and top loader fitted..
as some may of read salty did me a prop and linner as it was trashed big time when we brought it home...
runs fine on trailer, but on load its just not all there,
seems a good spark off all three plugs when checked one at a time..
things that have been checked
carbs were re built aprox 10 hours ago and all seemed to check out ok on inspection inc the mini filters..
crank phase checked..
compression is a good 120 ..warm, wot,
coils checked out ok by steved at his work..
acc pump was blocked so salty sorted that but we understand its not that but did it while there..
all connectins checked and double checked..
all three plugs get warm and all seem the same heat and colour..
salty has looked every place he can think for the problem and has no idea where to look now so i ask you guys PLEASE if you can think of anything can you let me know as salty and i are well stuck and he has put many many hours in ski and has had just about enough of my P.O.S.
we talked about weak spark under load and the only thing left to try is E.C.U..
can the E.C.U fail and give a weak signal to the coils thus under load lacking power in general
as i said anything you may think of please post as its now sitting in my garage untill further notice and unable to ride...
thanks guys ....dean
07-21-2007, 04:10 PM #2
- Join Date
- Jul 2006
Sounds like it could be jetting or powervalves. Did you rejet when you changed the reeds?
07-21-2007, 04:22 PM #3
Have you tried manually operating the valves? Disconnect the PV motor and turn the valves all the way open? I am sure you checked the pump bearings, no wine or rattle when on the trailer.
07-21-2007, 04:58 PM #4
07-21-2007, 05:01 PM #5
could pump bearings do this sort of issue??,paul did as far as i know check them as he said he re-packed with lube,although there is a loud rattle on start up but i thought they all sounded loud out and off load?????..
07-21-2007, 05:06 PM #6
Shouldn't be any loud rattle. Bad pump bearings can cause 200 rpm loss or even stop the motor at WOT. Ask Akent about that one.
Does the rattle come from the outside of the boat or under the seat?
07-21-2007, 05:12 PM #7
but the skis is a bit loud on trailer but no worse than my old gp,always a jangly noise as the tick over slows as if its the prop touching the linner but i checked it ok (linner)
thanks for this imput duke i am lost here
Last edited by gprdean; 07-21-2007 at 05:17 PM.
07-21-2007, 05:22 PM #8
How many hours on th ticker?
I would rule out spark or CDI. This would just foul plugs and not run smooth at all.
07-21-2007, 05:25 PM #9
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