Motorcycle Maintenance Discussion: spark plug specs for 81 yamaha 400 special

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spark plug specs for 81 yamaha 400 special

Posted by scott on September 22, 2005, 3:26 pm
66.140.87.196

I need to know the correct spark plug and gap (ngk pref) for my 1981 yamaha 400 special. any info would be very helpfull. It backfires through the left exhaust.Might be carb. dont know.

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spark plug specs for 81 yamaha 400 special - scott September 22, 2005, 3:26 pm
- Re: spark plug specs for 81 yamaha 400 special - gn February 6, 2006, 12:44 pm
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--Previous Message-- : I need to know the correct spark plug and gap (ngk pref) for my 1981 : yamaha 400 special. any info would be very helpfull. It backfires : through the left exhaust.Might be carb. dont know. :

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