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Discussion Starter #1
I'm changing out my petcock this weekend on my 2002 VN800B California version. I've grampsized it, Cobra pipes.

My question is on the vacuum line that runs from the petcock to the carb. It is split off twice. Once to the reed valve which is pluged. The other to the canister on the left.

Can I just put a straight line to the carb from the petcock??
 

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BOTM Winner, April 2015
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766 Posts
Remove the California emissions... and yes the petcock vacuum line can be ran straight to the carb. If you've gone that deep replace the fuel line also, they tend to deteriorate from the inside over time.
 

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Discussion Starter #3
That's a great idea. I also orders new plug boots at coils. They are a bit corroded. The spark plug wires at the auto parts store seem kind of thin. I found a long length of high performance wire on line. I have my work set for the weekend
 

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BOTM Winner, April 2015
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Cool man, sounds like some bonding time with the scoot..!!
 

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Discussion Starter #5
Been a while but here's an update.

Pet cock replacement made a big difference. The new plug boots and coils came with new wires. Took care of that.

Since I was elbow deep and still have 1/2 of a cigar to smoke I moved radiator overflow line to the other side giving me better access the the rear plug.
 

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Remove the California emissions... and yes the petcock vacuum line can be ran straight to the carb. If you've gone that deep replace the fuel line also, they tend to deteriorate from the inside over time.
What diameter fuel line did you use?
 
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