Hell yeah

Leave it to a fellow pot head to save the day. I was in my engine to change the valves and piston, figured id clean the carb really good and honest to god didnt even know I had an issue. My symptoms were the same as yours.... Im wonder if this was part of my issue the whole time..

What kind of adhesive did you use?

Would this also apply to a carb like the Keihin pwk38? Mine has the same slop in it. Bike idles and rides fine though.

Was your bike idleing high? Mine is and this might help me.

u can also increase pilot jet size untill the idle drops back down

Be sure to put the feeler gage NEXT to the big nug next to ur carb. LOL

Чувак, я нихрена не понял, но ты лучший!))

I don’t say it can’t cure the problem you describe, however be VERY careful with modding throttle slides, if that feeler gauge for any reason can move over time and jam the slide in open position you are in big trouble.

the slide plate is sucked into the tb like a vacuum even when the tb is worn its normally the slide plate that needs replacing it get rounded edges and not flat causing a vacuum leak around it

Good idea , I was trying to work out what would make a good smooth spacer. Having the same trouble on my drz 400. Couldn't find a carby anywhere and I now know the same carb is used on many different bikes. I was desperate so have ordered new slide and plate from Suzuki. Get ready for the kick in the balls, $385 for the slide and $265 for the plate. This is australian money, I sure hope it fixes the hanging throttle and stalling.

But the feeler gauge is too wide and comes into the carburetor's bore and the air flow.You have to grind it at the shape of the bore before you glue it on the carb's body.

fixed my bike with this method, thanks! i ended up gluing the feeler gauge onto the slide itself. idles great now

Hey man, I just went through the same procedure in my carb. I am really curious to know if the plain 100% silicone held up. I am scared of the engine sucking in my shims and destroying itself. I also used a dremel on the feeler gauges so their is no blockage of the carb bore (the shims do not stick into the air/fuel channel at all). I would really appreciate you or anyone letting me know how this mod held up. Thanks

What did you do? The video cut off right after you said let’s show you how you fix this lol

Hey, great idea !! I have a exc250f 2011 with a fcr mx39 flat and want to do this repair. I have problems with the engine choking up sometimes and the idle sometimes go up and sometimes go down (not constant). I already did a valve setup and every thing. was wondering if this should fix my problem and if i should tune the carb to the manufacture settings (original) or leave it like it is. thank you

So the gap creates a lean situation??? I have never checked my fcr for the gap or no gap.???

Thank you man, you are a genius, this fixed the hanging idle and rattling slide I have been chasing for 8 months now, out of curiousity are they still in? Still working?

Hey m8 nice idea. I have been trying to solve a similar issue where the idle hangs when set in high rpms, in addition to a very jerky transition from on/off idle. Also the throttle feels a lot heavier when the bike operates compared to when the bike is off where it can be twisted pretty smoothly. After operating the bike with the top of the carb off, it was obvious that, because of the horizontal free play(probably due to roller grooves), the suction would hold the whole slide body to engine side of the carb body, instead of just the vacuum plate causing the binding. So my question is : should not those fillers be placed on the engine side of the carb instead of the airbox side, so as not to push the body to the direction of suction? or do i have it all wrong in my mind? Ps: i ll try some wider 3D-printed rollers and if that doesnt work i ll probably try your fix.

I've done this to my FCR. I've put one in each side. I have not tested in the street yet, but it seems to work. Thank you very much for the idea.

Hey ! nice idea, i have the same issue, idle trouble, i bougth a plate on ebay, in aluminium, i hope it will not damaged the carb. Did you put this on each sides ? (4 pieces), in order to avoid the worn ? i think we should put 4 plates to protect the carb ?

How about fitting some slightly larger wheels to the slide? there looks to be grooves from them in the carb bore.Some slightly bigger ones should help to take out some of the freeplay.

I have the same problem on a ktm525 and need to shim it with a .007'' feeler gauge which i cut in half. I've been searching for a suitable fuel resistant silicon adhesive but with no luck. Can you tell me the brand or pic/video of the silicon adhesive you used? Cheers and thankyou in advance.

Thanks again. On my way home from a 7 day riding trip to Amargosa, NV. Bike ran flawlessly with this fix.

Good news. Installed this temporary fix and it fixed my massive hanging idle which was due to a very worn main body. There was a bit of a hiccup during the install. I separated the mid body joint to make gluing easier. Turns out you need to make sure the feeler gauges end about .100 from the mid body connection or there is an interference. Huge props to Cm.Uncensored 916 for making this video series.

I just test fit my feeler gauges and noticed they block the main thru air hole in the carb when the slide is full open. Did you bother addressing this issue?

A ton of bikes use this carb and lots of the parts are interchangeable. If you order the slide plate from Kawasaki (PN 16025) it comes with an o-ring gasket and is only $37.

It's been several months now since you did this ingenious repair. Is it still working ok? Any issues along the way?

Hey man I have an fcr39 slant. Looks exactly like this. I can't seem to figure out how to get the slide out of the carb. That assembly with the mini rollers that attaches to the slide are the issue. Can't seem to find anything on KZfaq or the web on disassembly. Thanks in advance.

Tilt steering knuckle

Yes

so , the idle was fixed ?

Are you just leaving the feeler guage in your carb? Will it not move at every jumps or each time the bike falls?

Has anyone else tried this with success? I'm having a hanging idle issue as well as a bogging issue on my 2008 Kawasaki kx450f.. All the jetting is stock as well as the rest of the bike.. Carb is clean, but when I first took the top off the carb to gain access to the slide there was aluminum shavings when I wiped it with my finger? Not sure what to do

ahaha helps me think to brother!

Dad really? :(