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Just returned from a 4 hour drive to ride 2.6 miles, I am so pissed. The clutch side piston and ring are scorred bad on the exhaust side; after view with the exhaust manifold removed. My dealer whenever he can't explain the reason always has the same answer; which I think is B.S.; blames it on bad fuel. I run only premium, and what about the 7 others that fueled up with the same fuel that are still riding. The spark plug on the recoil side looked really lean as well, almost a white grey, but did not burn down. This is an EFI motor, this shouldn't happen. A local trusted sled mechanic of 20 years; mostly Yamaha and Ski-doo; suggested that it sounded like a fuel pressure problem?? He said get the dealer to set the sled up so it is richer, and check the pressure. After a lengthy conversation of the performance and fuel economy as of lately, he thinks it is a lean burndown. I told him about racing some buddies and going for a long ride last weekend, how my 900 was way cheaper to fill up than everybody else, we all rode the same distanceand raced. He thinks it isn't getting enough fuel, making it lean??
Anybody got any ideas, I would really appreciate any feed-back.
Anybody got any ideas, I would really appreciate any feed-back.
