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by bluedragonbrown
Fri Apr 10, 2009 12:52 am
Forum: Trouble Shooting
Topic: ENGINE MAKING A WOOPING SOUND
Replies: 2
Views: 2892

ENGINE MAKING A WOOPING SOUND

Hello
I have A 78 HONDA CB400T. When the engine is runing there is what sounds like woop woop woop on the left side. Speeds up when engine rpm's go up. I only heared it after taking off the mufflers. I just got the bike is not runing right. It will idle ok when I try to rev it rpm's start to go up ...