2001-2005 Yamaha Raptor 660R carburetor cleaning 

I would have to agree with that thought. Those are generally overflow tubes. If the float gets stuck inside of the carburetor then the fuel will not stop entering the bowl. The fuel needs to go somewhere. Out the overflow tubes is one way. But if the fuel is flowing at a high rate it can also overflow into the intake both the air box and the intake side of the carburetors on the engine side.

@@OTRVM quick question my bike smokes when i turn it on after replacing the carb due to over filling with gas they had told me that gas could get in the piston i check the oil and sure enough its not clear anymore and very runny is this a simple fix or expensive and what would be the fix to this problem? Id appreciate if you could help me out thank you

@@victorf2094 your screwed get it to a mechanic quick

@@victorf2094 Sounds like the excessive fuel washed the oil off the piston rings/cylinder and it was run without proper lubrication. Expect to replace the rings and have the cylinder honed if that's the case.

Great video till this day gonna clean carbs on a 660 2002

hey Yank did ya get it yet ??

Hugeroost what lol?

@@Makimapoopypants Levi, I was saying I have one of these that I bought for when a friend comes up to the ranch they'd have something to ride and follow me on my KX500. Only one buddy has ever come up and rode it, its sat in my barn, nice and dry, and I dont ride 4 wheelers so i'm gonna sell it. Hmu at umcane4@aol.com and we can talk about it, its prolly had 3 tanks of gas total run through it, bone stock

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Hi Bill thanks for watching. Take a good look at the air filter too. A dirty air filter can cause the issue you describe too.

hi@@OTRVM what did you set the idle circuit to

Well that is never fun to hear an odd sound. Do you know when the valves were last adjusted? Valves that are loose make a tapping sound on the top end. A knocking sound is not good at all and generally can be heard from the mid to lower end of the motor. I have a video of how to adjust the valves on a Rhino 660 which is essentially the same motor.

KX500Maniac I was wondering the same thing.

Good evening. I apologize for the delay. After reviewing the video, manual, and DynoJet Jet kit installation instructions. With this particular setup which is a KN filter and pipe you would run the mixture screw in just until it seated. *Do not crank it down* Then back it our 3 turns. With less tuning such as maybe only a filter and no pipe you could go 2.25-2.5 turns out if you even have access to the screws. I hope this helped.

@@gabrieltony502 Good evening. I apologize for the delay. After reviewing the video, manual, and DynoJet Jet kit installation instructions. With this particular setup which is a KN filter and pipe you would run the mixture screw in just until it seated. *Do not crank it down* Then back it our 3 turns. With less tuning such as maybe only a filter and no pipe you could go 2.25-2.5 turns out if you even have access to the screws. I hope this helped.

great question!!!

Good evening. I apologize for the delay. After reviewing the video, manual, and DynoJet Jet kit installation instructions. With this particular setup which is a KN filter and pipe you would run the mixture screw in just until it seated. *Do not crank it down* Then back it our 3 turns. With less tuning such as maybe only a filter and no pipe you could go 2.25-2.5 turns out if you even have access to the screws. I hope this helped.

Good evening. I apologize for the delay. After reviewing the video, manual, and DynoJet Jet kit installation instructions. With this particular setup which is a KN filter and pipe you would run the mixture screw in just until it seated. *Do not crank it down* Then back it our 3 turns. With less tuning such as maybe only a filter and no pipe you could go 2.25-2.5 turns out if you even have access to the screws. I hope this helped.

Mine does that as well

Your float/needle is likely stuck and needs a cleaning and or might also be out of adjustment.

Generation-X I took the entire carbs off cleaned them and put all new internals in them, now it acts like it’s starving and I even adjusted the air/fuel a lil richer, idk what else to do now?? I’m confused, it should be running perfect????

@@DAREDEVIL503 Sounds like you solved your fuel dumping problem from the original post. Do you have any mods and if so is it jetted properly? Is it popping/backfiring? When you say starving, is it for fuel or air? Are the adjustment screws and floats adjusted properly? Did you check the spark plug to see if it's burning lean "white" or rich "dark brown to black and or wet". A new plug would be recommended for checking that with some time riding. Is the issue at idle, mid-range, wide open throttle? I recommend you pick up a haynes or clymer service manual, they're around $30 and walk you through all aspects of the machine step by step with pictures too.

I service the Phoenix, Arizona area.

@@OTRVM Im in the phoenix area. Whats your contact information?

Same

Well there are a lot of options on Amazon. I would choose one with good reviews and many of the internal parts to replace. Such as the pilot jet, o-rings, gaskets, ect. Hope this helps.

Mikuni OEM. MK-BSR33-41 is the part number.

Hello there. I am not. I am in AZ. However, there are several aftermarket options for entire carburetors on Amazon ranging from 69.99 - 100 plus. I would pick a company with good reviews and order one. Hope this info helps.

Azzion smith I just ordered one of the a/m carbs on amazon from BH-Motor for $72.99. Although it only has 20 reviews, overall it’s 4.5 stars and for what it’s worth, it’s the “Amazon’s Choice” for the ‘01-‘05 raptor. I have a mint ‘03, a mint ‘05, and an ‘05 roller I use for parts. I only needed 1 oddball piece that I couldn’t find anywhere. I kept the stock carb on the machine and will now use the new carb for parts. Thorough cleaning/rebuild and she’s alive and ‘rippin!!! Front tires still want to lift off the ground in 4th gear. Not gonna lie-nearly shit myself on the first test run after the rebuild. Guess I was just used to her bogging down over the past few weeks, I totally forgot about throttle control. Anyways, good luck with getting the carb fixed and be safe. Great vid, by the way. Thanks!!!!

One more thing...BRAAAP!!!!

@@erikj7006 hey Erik i have one of these that has hardly been riden at all, 3 tanks of fuel maybe. Its been sitting in my garage for the last several years because nobody would ride it, I ride a KX500 and not much into 4 wheelers, so want to get rid of it. Roost is in Texas

Hugeroost hey man!!! I ride a 2017 Beta 300 x trainer at the moment. As a kid, I started out with a kx 80. Years ago got rid of my 250. I just recently got rid of one of my raptors and regret it. Looking for another. Unfortunately I am all the way across the country in NH.

Mine does the same, throtlle cable is to short

Just remove cable and make sure it runs the shortes way to the carb

I had the exact same issue. It was stuck inside the carburetor, I tugged on it with some decent force and it didn’t even budge. It looked like it had some acid looking junk around the spring when took the screw off. The kind of stuff you see when batteries go bad. Is this what will cause it to bog under a little bit of throttle or sound inconsistent when Idling?

Freddy Carrillo soak it in Chem Dip for a day or two. That’s how I got mine out. Get a can of it from an auto parts store. Just be careful. It’ll eat seals and everything fast!

You do not have to drain it before hand. I think at some point (unless I edited it out) you can hear the tank draining in the background on my table. If you do drain in on the quad I would attach a separate longer fuel line down to whatever you are draining it into.

@@OTRVM thanks for the reply, I got the carb cleaned and put back together and she's running great, your video was tons of help, thanks!

Good evening. I apologize for the delay. After reviewing the video, manual, and DynoJet Jet kit installation instructions. With this particular setup which is a KN filter and pipe you would run the mixture screw in just until it seated. *Do not crank it down* Then back it our 3 turns. With less tuning such as maybe only a filter and no pipe you could go 2.25-2.5 turns out if you even have access to the screws. I hope this helped.

@@OTRVM and for stock one? 2 turns out?

nope

Yeah, it was a fuel injected 700 for 2006😂

how much

@@rusteezy8786 thinking somewhere between 2500-3, I imagine i'm gonna have to take it to dealer and have both carbs gone thru and new battery. Lol I already did that once and not a soul came up and rode it

3k

Float needle bad which will cayse your float get stuck.