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Thread: New Somenized (TM) 69", Yak-54
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Old 03-01-2009, 09:05 PM
  #454  
ctnic
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Join Date: Nov 2003
Location: Grand Rapids, MI
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Default RE: 69" QQ Yak-54
The stock/standard engine mount will be fine. I have used the stock engine mount in my 73" QQ Yak with a YS140s for 3 years and counting. Never had any issues.

I would recommend pinning the firewall. In addition to pinning I also wrap the edges of the engine box/firewall with .5oz fiberglass and seal the entire engine box area with epoxy.

Cheers,
Chris

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