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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
'01 YZ250 Cylinder Suction Pipe?
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[QUOTE="SteveTroi, post: 1184274, member: 74104"] We have an '01 YZ250 that was recently acquired and am curious about this suction pipe/Vent hose thing mounted on the left side of the cylinder. We're waiting for the service manual to come in, so besides that, we're relying on parts diagrams and common sense. Does anyone know the actual purpose of this?, appears to me to be factored in with the power valve system, but just not sure yet? The problem with this is that when you start up the bike and then after warm up and you get on it, the connector pops out and leaks spooge. Lots of exhaust comes out this port and hose. Should that be the case? Since the part is called a suction pipe, I'd think its a vent to suck air in, not push out. We're just not sure yet how to troubleshoot this. Other than that, the bike appears to run just fine - its used, so its hard to know what's been done previously (or not done for that matter) Thanks for any help you can lend. [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
'01 YZ250 Cylinder Suction Pipe?
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