Took my last fishing trip of the year in northern NH this weekend. went up with a few guys who planned on riding all weekend on thier brand new machines. Got a chance to do some night riding, and the sled was loving the cold air. Had no problems keeping up with brand new $12,000 polaris and ski doo 800's on the tight trails. In any case, during the day, it was breaking up and bogging past 1/3 or 1/2 throttle, any time I ran it for an extended period of time, especially when the air temp hit the fifties. As long as I was moving, my water temp didnt pass 140, but the engine temp really didn't seem to be related to the issue. It seemed to me that it was a fuel delivery issue. Maybe water in my fuel pump. I haven't gotten a chance to dig into it yet, but I was wondering if anything sounded tell tale from the symptoms. It seemed as though when it was the worst, it was getting oil, but not fuel. It smoked when i would give it throttle, but wouldn't build RPM's. I would let it sit until the air temp dropped, and it would run flawlessly.
Topic: invader 440 breaking up and bogging when air temp rises (Read 7666 times)