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my raptor 350 smokes bad

This is a discussion on my raptor 350 smokes bad within the Yamaha YFM350 Raptor/Warrior ('87-Present) forums, part of the Performance /Technical category; i have a 350 raptor that smokes like crazy when i start it. it will stop after it warms up and i ride it, but ...

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Old 02-17-2009, 09:43 PM   #1
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Default my raptor 350 smokes bad

i have a 350 raptor that smokes like crazy when i start it. it will stop after it warms up and i ride it, but there has to be something going on in there somewhere, where would i want to start looking? don't know alot about these machines except it shouldn't smoke like it does, any help would help.
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Old 02-18-2009, 09:09 AM   #2
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I would first suspect valve seals.
01' Raptor 720, Stage 2, FCR'd
97' 250 Vitos Blaster
06' Rhino 450
94' Banshee T-5's, Vforce, ported, Cool Head, 2-1
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