yamaha 150prov

olc0wp0ke101

Recruit
Joined
Aug 23, 2005
Messages
4
my boat mech. 3 years ago gapped my plugs (he said a bigger gap) and it runs great but I have put new plugs in and was wondering what the largest gap could be for a 1988 150 PROV<br /> thanks
 

rodbolt

Supreme Mariner
Joined
Sep 1, 2003
Messages
20,066
Re: yamaha 150prov

.o4o" or 1mm. they also reccomend resistor type plugs. will be a BR type instead of a B.
 
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