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Yamaha XS 400 discussion forum:
RE: Reving Problem
RE: Reving Problem
StuD
said 2009-04-28 07:36
Try running some Sea Foam through. Put 1/3 can in tank run it till you figure it filled carb float, let stand over night, repeat if nessesary, pull plugs clean or replace after Sea Foam has run through. IT cleans the gum varnish etc out of carbs
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