Question about Yamaha 2005 Kodiak 450 Auto 4x4

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I have a 2007 yamaha kodiak 350 atuo .the timing chain wore out i replaced the chain and gears. i romoved the gear on the crank shaft that aligns with the counter shaft balancer. When i got it all back to gether it vibrates untill u get past half throttel. Im wondering if the piston should be a tdc or bdc when i ut the gear bake on the crank and when i align the makes on it to the counter balancer ???? thanks

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Steve P

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  • Yamaha Master
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Always assemble your engine at TDC on the compression stroke...

Posted on Aug 01, 2017


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  • 101 Answers

SOURCE: gear shaft

If you are trying to change the boot over the U joint at the swing arm, you don't need to remove any shaft to do that. You do however have to remove the swing arm.

Posted on Oct 05, 2009


gavin jones

  • 1508 Answers

SOURCE: 1987 yamaha xt600 teneree slight vibration in 5th

The balance shaft isnt likely to jump a tooth, unless someone has installed it incorrectly. And if this was the case there would be problems in all gears

Youve probably done this but check the chain and sprockets are in good condition, and adjusted correctly.

Posted on Jun 08, 2010


gavin jones

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From memory I believe there are a couple of dots on the balance shaft drive gears, the dots line up together

Posted on Aug 23, 2010


  • 738 Answers

SOURCE: i have a 1986 yamaha

The timeing markings should be on the flywheel, F = fire T = top dead centre, however with the piston at the uppermost point, this is known as tdc, and the camshaft should be fitted with the cam lobes facing downwards, thus the valves closed in this position, on e assembled, move engine slowly with spanner untill 1complete cycle with no obstructions, if the engine meets any obstructions stop and recheck timeing and correct, if ness

Posted on Apr 29, 2011

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Hey Ralph,
This is serious,,, You can pull the right side cover off and see if anything falls out.. SERIOUSLY... there something that is interfering with the primary gears turning.. it could be something lodged in one of the gear teeth,, one of the gear teeth is cracked/broken,,
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Do this check exactly as described.. you are checking the functionality of the transmission alone. - no clutch-no drive chain. If you do have a cracked tooth, the transmission will only rotate about 340 degrees in either direction.
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After the check.. repost and we'll go from there.

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