Posted by gn --Previous Message--
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on February 6, 2006, 12:44 pm, in reply to "spark plug specs for 81 yamaha 400 special"
207.74.115.22
: 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.
.32 inch
:
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