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Broken Bruin
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Posted: 08/14/09
06:18 PM
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2005 Bruin 350 4X4 Looks like Im in trouble here. Motor cranks, has spark and fuel. Pulled timing chain cover and valve cover. Chain moves then stops while cranking feels like gear is slipping. Rocker arm is not moving.Piston must be moving because I can feel compression over open plug hole. I know enough to be dangerous but not enough about the internal workings and order of what should move when. Something is major wrong I just don't know where to go from here. 
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Posted: 08/20/09
08:45 AM
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Posted this in the Yamaha section but no reply I am going to start breaking the engine down to see what is going on but was just looking for some more input from you guys.
Thanks
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Posted: 08/20/09
08:48 AM
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Posted this in the Yamaha section but no reply I am going to start breaking the engine down to see what is going on but was just looking for some more input from you guys.
Thanks
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Posted: 08/23/09
06:01 PM
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Well looks like no one wanted to tackle this one. I broke it down this weekend and found that the timing chain had jumped off and was very loose and that the guides were worn. I removed the chain and it was defiantly worn the links were sticking. As soon as I can find the parts I'm going to replace the chain, guides, and sprocket. Does anyone have a online parts house that they can recommend? I have used Xtreme powersports in the past they seem to be competitively priced.
Thanks
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wolf1
Addict
| Posts: 2244
| Joined: 11/07
Posted: 08/25/09
07:21 PM
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sorry gunfighter, sometimes i miss one or two, i use www.rjatv.com for parts. john has good prices and fast shipping, tell him wolf performance sent you
Keep it RUBBER SIDE DOWN!!
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