Carb Synch Jumping Needles ??

[gdhubert]

I want to synchronize my carburetors on my 1982 GL1100. Got the gauges hooked up and all. Idle is a bit rough and the needles are not very steady when idling. The needles shake and are not steady. Haven't touched carbs and don't really want to do a tear down/rebuild of them. I feel that is slightly outside of my skill level. Any suggestions?

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Thanks.

[gdhubert]

Duh! RTFM - I didn't. Once I put in the little adjuster valves and adjusted them the shaking needles settled down.

My bad.

[WingAdmin]

Duh! RTFM - I didn't. Once I put in the little adjuster valves and adjusted them the shaking needles settled down.

My bad.

You got it. The idea is to allow the engine pulses to smooth out by only letting a small amount through at a time. The larger the space in between the valves and the gauges, the better damping you get.

That's one of the reasons why I use a Carbtune Pro - its weighted, damped rods eliminate those vibrations and make it super easy to balance carbs.

[WingAdmin]

I actually covered the Carbtune Pro in this year's gift guide:



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[gdhubert]

Carbtune Pro is a great tool and I can see how it is probably easier to read and use - however $140 vs $54 - Guess I'm a cheapo!


Thanks,

Greg.
1982 GL1100 Barn find rebuild
Great stuff on this forum!!!

[Dirtrack650]

I use the Mercury sticks. Very accurate.

[Jumperdumper]

I tried the same type of gauges that you pictured but they were not accurate. They would not read the same so I bought 4 from McMaster that are oil dampened. I used the valves to help in the needle jumping