I own a 2001 800 XC SP. I ran it last year with no problems. However, I recently returned from a trip to the U.P. and burnt up the PTO side cylinder. It looks like it leaned out and cooked itself.
While getting the engine ready to do a decay test, I pulled the carbs off. I noticed a nipple on the top of the carb that was not hooked up to anything on the same carb for the cylinder that cooked itself.
On the other carb there is a hose hooked up to this nipple and the hose runs to the air box where it seems to be connected to a plastic nipple that just blocks off the end of the hose.
Does anyone know what this nipple and hose are for? If I do not have the hose hooked up to the nipple, and then blocked off on the other end, could this cause the fuel mixture to lean out? I did not have any problems until I ran the sled hard this past week. Any help is appreciated.
While getting the engine ready to do a decay test, I pulled the carbs off. I noticed a nipple on the top of the carb that was not hooked up to anything on the same carb for the cylinder that cooked itself.
On the other carb there is a hose hooked up to this nipple and the hose runs to the air box where it seems to be connected to a plastic nipple that just blocks off the end of the hose.
Does anyone know what this nipple and hose are for? If I do not have the hose hooked up to the nipple, and then blocked off on the other end, could this cause the fuel mixture to lean out? I did not have any problems until I ran the sled hard this past week. Any help is appreciated.
Leaned Out Cylinder
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