04-07-2010, 07:46 PM #1
just got a gp1200r would like to know some things
Hey i just got a 2001 gp1200r with 157 hours on it, and i would like to know a few things, first i hear alot about these wave eater power valve clips, what are these and what does it entail to install them? Second, to do a topend rebuild do i need to pull the motor? because it has 115 psi in all 3 cylinders and i was told this might be time for a rebuild soon. and last, im sort of thinking my powervalves have issues because i hear the servo cycle but i dont see the actual wheel move the powervalve?
04-07-2010, 08:03 PM #2
04-07-2010, 08:06 PM #3
120 is normal range for the compression. It does vary with each guage but if they are all the same i think your ok. It would be a good idea to do a top end just because of the time it does have. Yes it can be done while in the boat. The exhaust has to be taken out.
04-07-2010, 08:15 PM #4
Welcome to the Hulk..
Does the wheel for the PV's rotate?
04-07-2010, 08:21 PM #5
If it was me...1-pull the pipe and look for the cat conv (it can be in the water box). 2-rebuild the carbs and check the oil lines and raves. 3-replace spark plugs and RIDE.
04-07-2010, 10:06 PM #6
yeah id rather not drop the money into a top end this year if i can avoid it, but what i would like to know is, how do i know those powervalve motors are working correctly and opening all the way? By the way when i remove the exhaust, i dont need to pull the manifold right? just seperate it at the split in the pipe?
04-07-2010, 10:07 PM #7
04-08-2010, 07:48 AM #8
- Make sure there are no cracks
- Make sure they are in good condition
- Be sure the are securely installed
- Make sure they aren't going to come off
04-08-2010, 04:37 PM #9
right, gotcha. sorry this is a totally new animal to me, i know my m3's motor inside and out but thats a 4stroke obviously, i dont have a huge knowladge of troubleshooting 2 strokes, or oil injection. but thankfully i pulled the carbs and i think thats the problem, i checked out the oil lines as well. the only thing i think can still be a problem is that power valve servo, im not going to mess with it, ill take it out on the water first after a carb rebuild and see if its good.
04-09-2010, 06:41 AM #10
- Join Date
- Oct 2006
- S. FLORIDA
the sheath that covers the oil lines does not shrink. the oil lines do shrink. make sure they are not pulled tight and do have a bit of slck in them. compression looks o.k.
the power valves might be sticking. if someone used a different oil or a cheap oil, they tend to get gummed up and stick.
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