Ghostshad Posted August 24, 2017 Posted August 24, 2017 What does a 1999 , Johnson 225 High/OutPut SparkPlug's gap on ? GodBless & ThankYou Quote
Ski213 Posted August 24, 2017 Posted August 24, 2017 I believe 0.030". Way2slow would know for sure though. Quote
tander Posted August 24, 2017 Posted August 24, 2017 1 hour ago, Ski213 said: I believe 0.030". Way2slow would know for sure though. 0.030 is what I gap my Johnson plugs but my motor is way smalller. When I bought the boat, it had NGK plugs in it. I changed to Champion, which is what was recommended by Johnson, and it made a world of difference in cranking. Quote
Bulletman20XD Posted August 24, 2017 Posted August 24, 2017 Google and Youtube are wonderful places to find all kinds of information BUT is it correct information. Call and ask your local dealer! Quote
tander Posted August 25, 2017 Posted August 25, 2017 Might be the obvious, but if you have the owners manual, it should be listed in there somewhere. Quote
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