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Workshop => Carburetor, Intake, and Exhaust => Topic started by: yugyagz on July 04, 2016, 07:57:51 AM

Title: Idle screw? 39mm keihin pwk
Post by: yugyagz on July 04, 2016, 07:57:51 AM

I recently got bike from guy at work. For starters he told me this was stock carb and it obviously isn't. Question is, isn't there supposed to be an idle screw here? Where this hole is? Or are these like stock carb and you have choke/idle knob.

Title: Idle screw? 39mm keihin pwk
Post by: jwraymond6 on July 04, 2016, 08:16:37 AM

The open hole right above where it says keihin is where it's supposed to be I believe

Title: Idle screw? 39mm keihin pwk
Post by: The_Steve_Man on July 04, 2016, 10:10:26 AM

That is were the idle screw goes. You can get onto from Jetsrus

Sent from my MotoG3 using Tapatalk

Title: Idle screw? 39mm keihin pwk
Post by: yugyagz on July 04, 2016, 10:18:59 AM

Thank you guys. Just bought one on eBay. Prolly paid way to much lol I'm gonna look on that site right now

Title: Idle screw? 39mm keihin pwk
Post by: yugyagz on July 04, 2016, 10:22:51 AM

Ok. So there's a plastic screw replacement and a brass? It looks like it said brass is for non chrome slides? Im not at all rounded with any of this. If I ordered the brass will it not work? My slide looks chrome

Title: Idle screw? 39mm keihin pwk
Post by: yugyagz on July 04, 2016, 10:46:53 AM

There's also a spring for the plastic screw and but for brass it looks like. I bought brass screw and spring not knowing lol. Can I still use them? Dont want to damage anything

Title: Idle screw? 39mm keihin pwk
Post by: broken1 on July 04, 2016, 12:48:44 PM

You should be fine with a brass screw unless you have a real stiff throttle spring & let it slam shut from full throttle all the time.

Title: Idle screw? 39mm keihin pwk
Post by: Piney0 on July 04, 2016, 02:52:54 PM

The slides with a chrome covering 'should' get a plastic screw.  the brass / alumunum ones can chip the chrome on the slide.  That being said, the plastic PWK idle screws are known to be easy to break.

Title: Idle screw? 39mm keihin pwk
Post by: yugyagz on July 04, 2016, 03:43:11 PM

So I ordered the brass one.sounds like I "should" be okay as long as I'm not slamming throttle

Title: Idle screw? 39mm keihin pwk
Post by: Skeans1 on July 04, 2016, 06:12:35 PM

http://www.jjandaracing.com/contents/en-us/p369.html