XS650 BS38 Carbs. Idle too high. Slow return of idle
A high idle that is slow to come down is generally due to a weak mixture.
Weak mixture may be due to a too small pilot jet and fitting pod air filters but is more often due to an air leak on the inlet around the stubs or worn butterfly spindle bushes or butterfly disks leaking around the edges when fully closed
Centering the butterfly disks in the venturi to reduce excess air weakening the mixture at idle is essential to achieve a steady low idle
Пікірлер: 39
9yrs later I thank ya mate🍻
thanks for the feedback ....its good to know that the videos are still being useful.
I have a '77 Honda cb550k3. 4 carbs cleand, renewed, with stock parts.Main jet, needle jet,(groove set to middle position on the needle) new mixture screws(set to factory setteings 1+1/2 turn out).New intake tubes, airfilter.....Idle with choke is ok, but as I rise RPM it does not drop right at once after relesing throttle.Only Very very slowly.Carbs sincronized before reinstalled.THX
Thanks, now i know whats problem with my carburettor
Nice tip, thanks a lot for the vid - this may help my find my own idle issues...
Proper pilot screw adjustment & idle to fine tune. My did same thing.
Thanks.
cool trick, have to save this video if i at some point have to do this to my bike
Nice! thanks for the tip. this should be more known.
Awesome thanx...huge help
Thank You
excellent
Thanks for sharing the info!
Great Video.
i have exactly the same problem but i dont have a butterfly i have that cylinder thing instead (sorry i dont know how its called in english)
Wouldn’t the mixture too rich cause the same issue ?
Is a good solution to just scrap these CV carbs and get a slide?
Any help would be greatly appreciated I have a 83 Suzuki gs550l with the Dual CV carburetors and I am having issue of runaway it idles at cold start up somewhat okay A little choppy but okay but when cold if you give it some throttle it just runs away at 5000 RPM Full Throttle the cable is not sticking, I have adjusted the idle screw in the middle till it wasn't even touching the throttle linkage anymore so it's not that but as it warms up if you start it it just goes straight to 5000 RPM I'm going to double-check a few things this weekend before I take it out and tear it apart but just wanted to see if somebody knew what could cause that in this type of carburetor I was told recently to clean the Jets which I do plan on doing but I just don't think that's it and yes this bike does have a vacuum petcock which one of the things I'm going to check is to make sure everything is tight on the vacuum lines just in case that's it but when it idles real high I can use the choke as a somewhat throttle at half choked it calms somewhat down at close to full choke it dies I've been doing a lot of research over the last week even going through the owner's manual and service manual I bought for this like and I have a few ideas of what it could be but wanted to see if somebody on here have a lot more experience than I do with this type of carburetor oh, I already got a hold of the manufacturer that makes the carburetor and they said Jets as well but to me it's just not making sense why the Jets if they were clogged the bike wouldn't run right or run that high
I've been follow this instruction, but my engine is still slow to return to idle rpm.
Are those screws not staked?