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deceleration knock with 2 strokes
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[QUOTE="bloodhound51, post: 1235099, member: 81039"] closed throttle whats that? hahaha my cr250 had a (backfire) as southeastern u.s. citizens call it mine was due to the pipe being loose and allowing the engine to suck a little cold air in the exhaust creating ample (unburned) fuel air ratio to ignite in the pipe. i never thought a two-stroke could do that, but a new flange cured the problem. check the sealing surface of the pipe and see what it does. running a two-stroke engine down a hill using compression to slow you down is bad news anyway.(high rpm's low fuel rates=low oiling. hope this helps [/QUOTE]
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deceleration knock with 2 strokes
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