Keihin CVK Carburetor Clean and Rebuild - Kawasaki KLR 250 

Wow,thanks!

Apart from his hand being In front of the camera most of the time

Awesome! Glad this helped!

@@SevenFortyOne how many mm is this carb?

Yessir...I'm definitely a nerd no question about that

I apologize for the delayed response but I really appreciate your support - thank you!

I think you need it or something equivalent to block that opening or the bike won't run right.

You are right - I had some poor camera angles here and that bothered me too. I decided to release the video anyway figuring something was better than nothing.

Hard to say without being there myself....

Your float needle is probably stuck filling the bowl too much.

I had a Yamaha with that pressed in there, it's so the factory settings aren't messed with. You gotta drill em out to get the the idle adjustment screw

Probably....hard to say for sure. Could be a bad fuel shut off too

Float might not be adjusted properly either. Adjust your float so it's even with the float bowl

That is so weird! I just bought a 99' KLR250 this week and having the same problem as you

Could be the diaphragm....or maybe something isn't quite going together right but isn't obvious. Another problem could be a small air leak in the airbox or someplace like that...these carbs are very sensitive to that. Also check to make sure you have the right parts in your carb...maybe the rebuild kit wasn't quite right.

Dude, I got same thing, you mess with timing at all? fixed with a rebuild of the carb? yeah 3 years later I know

I't just an overflow tube. It routes down behind the carb someplace and just hangs with end near the bottom of the engine.

Ok...what kind of help?

The problem you describe sounds like a float/needle valve problem to me. Check to make sure the seat for the needle valve is clean and free from debris. I don't remember what everything looks like in there but you really shouldn't have to force anything to get it to the jets to seat right. But even if they are out of whack, the float, needle, and seat should stop any fule from flowing once the bowl is full of fuel. There are exploded diagrams on the internet that may help you see what thinks should look like when assembled...look for the KLR20 information page and you should also find a write-up with pictures and explanation of the carb's opeartion. My bike is running good now, but the fork seals are leaking and getting oil all over the front brake so I haven't been riding it this summer...haven't had time to address the problem yet. Hopefully I'll be back out on the trails this fall. Good luck with your project!

John R Did you work it out ? Mines doing this , can’t figure it out

@@SevenFortyOne hey thank yo for the reply, I never saw your response in my notifications. I can't actually say for sure what I did that worked I just kept taking it apart and putting it back together and then one time i fired it up and it was running without any issue. Only thing I could think is that the metal tab that hold the needle valve might have been bent and holding the valve from closing all the way. Either way thank you for the reply wish I saw it lol take care

@@thetorquingpoint8936 yea I never saw the OPs response and I'm sorry this info isn't super helpful , but I ended up just literally taking the carburetor apart like a half dozen times and putting all the parts back together, and then it just stopped leaking and ran great, all I could think is maybe I was installing the needle valve in backward or something. I ended up buying a 2nd carburetor off Amazon out of frustration, it was only around $40, just make sure the carb has the same inlet and outlet diameter and you should be good. I got the OEM carb running before the new one showed up lol typical, but I tried the Chinese aftermarket and they both worked fine. ( I did have to Jerry rig the aftermarket carb since it wasn't designed specifically for my Mojave ,250 , but I left it on for a couple weeks before putting the OEM back on and it worked fine, hope this helps)

That's the emulsion tube, the main jet screws into the end of it. The emulsion tube leans off the air fuel ratio as the air flow goes up. If the emulsion tube side holes are blocked the air fuel ratio will be too rich.

@@richardrichard5409 thank yku

@@madpivot123 😆

Glad you got it back! But too bad they screwed it up

@@SevenFortyOne yeah I just got it cleaned and I'm putting it back on the bike but I'm having trouble with the intake hose and I was holding the Kickstart down and it slipped out of my hand and uppercut me

You've got to be kidding right? WTF do you think rebuilding a carb is exactly? Dumbass. Jeez/