M
Brief Summary
08 Nytro
2000miles
MPI Stage II SC running 17psi at sea level (greedy, I know)
ARP head studs
Stock Internals
Pump/Water Meth
Sled has ran great all year, this past weekend the sled started/idled and ran fine but would fall on its face at top end. This is my second season at 17psi so I knew I was on borrowed time so I figured the end was near and gave it one last squeeze to verify my peak RPM. At 8000RPM the sled lost all power, check engine came on and I coasted to a stop and had a very rough idling chugging snowmobile. At that point I just left it and brought it back to the shop rather than risk damaging it further.
So far I have not had much time to get at it. I went do do a compression test however I did not have the proper sized fitting to thread into the plug holes. Upon removing the plugs my center plug and mag side plug are completely SOAKED in oil. PTO side plug is normal.
Any initial thoughts or anything in particular I should be on the look for when I get this motor out? No signs of coolant or oil anywhere in the engine compartment
08 Nytro
2000miles
MPI Stage II SC running 17psi at sea level (greedy, I know)
ARP head studs
Stock Internals
Pump/Water Meth
Sled has ran great all year, this past weekend the sled started/idled and ran fine but would fall on its face at top end. This is my second season at 17psi so I knew I was on borrowed time so I figured the end was near and gave it one last squeeze to verify my peak RPM. At 8000RPM the sled lost all power, check engine came on and I coasted to a stop and had a very rough idling chugging snowmobile. At that point I just left it and brought it back to the shop rather than risk damaging it further.
So far I have not had much time to get at it. I went do do a compression test however I did not have the proper sized fitting to thread into the plug holes. Upon removing the plugs my center plug and mag side plug are completely SOAKED in oil. PTO side plug is normal.
Any initial thoughts or anything in particular I should be on the look for when I get this motor out? No signs of coolant or oil anywhere in the engine compartment
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