734 Big Bore - Yamaha Viking Forum
 
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post #1 of 1 (permalink) Old 10-07-2019, 01:29 PM Thread Starter
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734 Big Bore

When I installed my first one I forgot to tighten the back head bolt on the underside and it blew a head gasket and ruined everything. I bought this one after I blew another head gasket before I tore the engine down assuming it would need everything again. After I got it down I found that it hadn't hurt anything like the first time so I used the gasket kit supplied with this and had the head machined and added ARP head bolts and bolted it back together.

I had over 6000 miles on the machine after that with no issues. Just traded it in and I no longer need this. Just kept it as a spare. It makes a noticeable difference on low end torque and a big difference if you have a programmer with a good tune or have Alba flash your ECU for it. $400 shipped to lower 48. I can ship anywhere but buyer pays shipping if out of lower 48.





Last edited by KBoyd722; 10-07-2019 at 04:05 PM.
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