Re: need help-evinrude fleetwin 7.5 bogs at 3/4 throttle
Could be a number of things - check the easiest things first:
1. Do you have spark on both cylinders? Check when engine is warmed up. Sometimes a bad coil cuts out when it gets hot.
2. Have you cleaned and rebuilt the carb?
3. Is engine overheating?
If 1,2, and 3 check out ok, then yes, it could be the shock absorber.