Spark plug Gap '78 140hp Evinrude

BrownBear

Recruit
Joined
Jul 23, 2004
Messages
2
Can anyone tell me what the Gap should be set at for my plugs. I just ordered some new Bosch plugs they will be in on Thursday the 29th. <br /><br />Thanks!
 

Walker

Captain
Joined
Jun 15, 2002
Messages
3,085
Re: Spark plug Gap '78 140hp Evinrude

The biggest gap is in your wallet. That motor likes Champion L77JC4's or QL77JC4's gapped at.030. I have no idea what the Bosch plugs should be gapped at
 
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