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I've got a 2008 RMK 600, its been a great sled even with short track, and I was blasting though all the new snow running great all day, then engine starts losing power then kinda makes a grinding noise, motor goes from normal pitch to a low poof poof sound. pull starter cord seemed stuck, removed the belt, moved the clutch by hand and it seemed to free the pull starter. Tried to start and when it did start it barely ran super rough. Pulled the plugs and i see the 2 pistons moving, but the motor makes a clanking/crunching noise when pull starter drawn slowly without plugs - its tougher than normal to pull the cord. I just realized I had not adjusted drive chain tension for years although i change the oil annually. Maybe i should drain and look for debris in the chaincase oil?
Perhaps its a crankshaft bearing or drive chain gear issue. I'd love to bring it back to life.
Any ideas where to start or diagnose ?
Not sure if its related but the machine was upside down stuck in a bush on a cliff for about 8 hours until i got about 5 guys to help fish it out. It started right up, coolant and oil appeared normal and it did not overheat all day.
Perhaps its a crankshaft bearing or drive chain gear issue. I'd love to bring it back to life.
Any ideas where to start or diagnose ?
Not sure if its related but the machine was upside down stuck in a bush on a cliff for about 8 hours until i got about 5 guys to help fish it out. It started right up, coolant and oil appeared normal and it did not overheat all day.