06 660 cam troubles. - Yamaha Rhino Forums - Yamaha UTV Forum
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post #1 of 1 (permalink) Old 06-10-2011, 02:12 PM Thread Starter
1/4 Throttle
 
Join Date: Feb 2011
Location: Guymon Oklahoma
Posts: 5
06 660 cam troubles.

Hey,
I have an 06 660 and it was at one point a 686.

Long story short, I needed a new cylinder, so I bought a stock 660 cylinder and piston and rings. I basically wanted to return it to stock.

After the rebuild it ran great... until the piston slapped the middle intake valve and bent the valve. I thought I just had the camshaft timing wrong, so I readjusted it after I got in the new valve. Today I ran it for about 10 minutes and it does the same thing again.

I don't know what I am doing wrong on getting this thing in the proper position. I read and followed the tech manual to the letter, but it still slaps the valve on the middle one.

So is there any other information or walk through that I can follow? Any experience of this happening? Thanks.

Last edited by kyleofthenile; 06-10-2011 at 02:14 PM. Reason: spelling
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