Why does my 91 70hp run on2 cylinders some time?

Javelin 353

Petty Officer 2nd Class
Joined
Dec 28, 2003
Messages
184
1991 70 hp Johnsons occassionally will not run on middle cylinder, have taken it to mech 2x's New PP, colis , wires and plugs, also said high speed jet cracked middle cylinder. Used boat ran great stopped about 20 min refired only run 3200 rpms then will limping in it picked up and ran fine. I am really at a loss for this It is getting very frustrating 3-4 month problem, scared to go to the big lakes around me.
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: Why does my 91 70hp run on2 cylinders some time?

double post
 
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