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I recently purchased the carbtune II. I got the 2 carb model since it fits my needs the best. I did purchase this after many good reviews on this forum.

My bike is a 650GL and has 3 lines from the petcock.

My question is:



I intend on suspending the tank higher than the frame and run lengthened hoses to the carbs.

If using a remote tank for the gas do all of the lines, 2 gas and 1 vac, need to be hooked up for the gas to flow. If so where would the vac tube connect?



This carbtune II will be used for tuning my GL and my antique BMW car that has 2 carbs.



steve
 

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If using a remote tank without a vacuum actuated petcock you would want to plug the vacuum line coming off the right carb before using your carbtune. Plug that instrument into your ports on the carb flanges.
 
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