85hp 1979model was running full speed and it shut down to just above idle speed ,changed fuel line and fuel pump still not running full speed

[farmer dave]

85hp 1979model was running full speed and it shut down to just above idle speed ,changed fuel line and fuel pump still not running full speed

 

[racerone]

Post the compression values here.----Test spark.

 

[farmer dave]

135 per cylinder ,no miss at idle

 

[Oldsaltydog]

Most don't miss at idle. Higher RPM's require stronger spark. Get a spark gap tester and set it at 7/16" and that'll tell you if spark is strong enough to support WOT demands.

 

[farmer dave]

thanks