[boxin]

I have exactly the same problem. I never knew the cause. I subscribe. I think if you can solve your problem, I can fix mine! So far we have tried everything equally.

[Kreylyn]

If you have not synced the carbs yet, then you can/will have idle issues and throttle response issues.

Krey

[jamesm113]

Haven't tried syncing the carbs yet, did a bench sync though. I'll get the carbs sync'ed

The drain hose is capped (new hose as well).

I've also replaced the float bowl gaskets.

I can try 3.5 or 4 turns out, but I feel like the A/F screw shouldn't be that far out on a stock setup (stock jets, stock exhaust, stock air filter)

[arsenic]

They shouldn't. SYNC THE CARBS!

[boxin]

It's true. You must synchronize the carburetors.
So my case is different. I have the same problem, even with the carbs synchronized.

[arsenic]

How did you sync them? Vacuum gauges or a real manometer?

[boxin]

You're asking me?
I do it with a homemade vacuometer (hose and oil). But I do not want to divert the attention of this thread, that ottoguy resolve his problem first.

[jamesm113]

Which are recommended? Vacuum gauges or a manometer like motion pro's sync pro? I've had a couple people offer to loan me their carb sync tools, including a twinmax (which looks easy to use), and a sync pro. I also see some vacuum gauges on fleabay that are fairly inexpensive.

Also, I can't set the idle at 1800RPM like the service manual requires. The idle starts to hang/rev up to 2k if I set it any higher than 1350-1400RPM.

And actually my idle screw is all messed up, I can barely screw it in enough to get the butterfly valves to rest on it. It's idling fine without resting on it. And the throttle cable is loose.

[arsenic]

Vacuum gauges are the worst way to sync carbs in the history of forever.

[boxin]

Also, I can't set the idle at 1800RPM like the service manual requires. The idle starts to hang/rev up to 2k if I set it any higher than 1350-1400RPM.

Me too!

[Sean Z Boy]

i have the same issue as you all know. my airbox drain hose isnt capped though. And i tryed to sync them even though i also could not get the bike to idle where it should have been and i use a homemade meter also.

[arsenic]

Really, your drain hose isn't capped? Well, do that.

[Sean Z Boy]

Lol just did and no difference but ill keep it capped this time

[jamesm113]

How should I sync the carbs? At 2k or at 1350k?

Also, I talked with a tech at the dealer, he thought the hanging revs meant it was running rich and wanted to a compression test

[arsenic]

1750