my 50hp force run great as long as the top is off the motor. when i put the top back on it chokes out and won't run. have had all new gaskets & etc. installed by a mechanic. He says he has done everything he knows to do but it still won't run with the top on!!! any help would be appreciated my wife is wanting to ride in the boat soon.<br />the motor runs wonderful with top on as long as it has the hose pipe on the motor.
<br /><br />I'll bet exhaust gasses are leaking into your hood. Find the source.