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SolitaryGunman

Decompression Shaft Bolt Query

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Hi,

I have a hole on the right side of my YZ426F 2001 engine, near the decompression shaft. (Please see picture below)

yz426fengine.jpg

Should there be a bolt here?

The bike starts and runs fine, I haven't had the bike long and just wanted to check that this hole was normal.

Thanks for your help.

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Yes, there is a special bolt that has a turned-down step on the end. It holds your decomp assembly in place.

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Hi,

I have a hole on the right side of my YZ426F 2001 engine, near the decompression shaft. (Please see picture below)

Should there be a bolt here?

The bike starts and runs fine, I haven't had the bike long and just wanted to check that this hole was normal.

Thanks for your help.

You might have a broken bolt in there. If there is nothing in the hole, it would leak oil from there when it's running.

Or...you have no oil in the engine?

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