Thread: Runaway engine rpm
10-08-2009, 09:54 PM #1
- Join Date
- Aug 2009
Runaway engine rpm
Ok I've got a '04 xl700 with a 701 62t engine. I bought it not running. Actualy it wouldn't rev up. I started with replacing the coil since it seemed like one side wasn't firing. After that the engine started to run away. compression went dead on one cyl due to burnt piston. from then I tore the engine down new pistons rings crank seals resealed the case all new gaskets reeds are new crankcase holds 10Psi. 160 pis compression.Rebuilt both carbs pop off is about 30psi.
could it be timing?
throttle cable is loose
butterflys are closed.
What am I missing
I'm pulling at straws now
10-09-2009, 02:16 PM #2
So....it runs now but revs high upon start up? Any mods....at all done to the ski....? Is the fuel line/filter full of fuel? It held 10psi for at least 10 mins?
10-09-2009, 05:15 PM #3
What about retarding the timing as I mentioned before. It worked for me
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