1978 70 hp Evinrude

[Garry Rausch]

Motor starts easily. Motor will speed up in idle. Motor stops when we put it in forward or reverse. Any ideas?

 

[joereeves]

Compression should be 100+ psi on all cyls.... s/plugs removed, spark should jump 7/16" gap on all cyls. Check & let us know what you find.

 

[Garry Rausch]

Novice! how do we check compression?

 

[joereeves]

Purchase cheap compression gauge at Walmart, K-Mart, auto stores etc (about $10). Remove s/plugs. Insert rubber tip of gauge into plug hole(s). Crank engine over... that's it.

 

[Garry Rausch]

Thanks. Will try this!