Thank you!!!! I've been fighting with this same problem for weeks now. Finally looked at the needle. Turns out I was one notch off. Hiccuping solved!

Dude I am so glad you posted all these videos. Was actually floored to see the exact same bike I am working on!!! I bought a 99' in the exact same shape...bike would not spark, bad battery (and wrong battery), gummed up carb, no brakes and something seemed to be up with the 4x4. Like yours mine has been very abused. Got everything fixed and bike starts but the thing runs like crap...spits, sputters and "coughs" just like yours!!! I had pretty much given up and was actually looking into sel

@RobertJeremiahSeal That's great news! I was running mine again today. I have a ball hitch on the back, and pull a old wagon my Dad made many years ago. we use it for all kinds of jobs, and used to pull it with a tractor, but now I find the quad gives me more manuverability. Have fun, stay safe!

Wooo Whooo congrats on getting her running. It sure sounds like a strong engine

Thanks! I really like this quad. It looks a little banged up, but iy is fun to ride, and I use a ball hitch on the back to pull a wagon for chores.

Was looking into selling but your videos inspired me to look a little closer. Tore open the carb today to find the long valve thing had the clip set on the third ring as well...going to try the second one to see if it helps!!!

I love the "Piece of )#*(#$)(*$!!"..I am having the same problem and said those very same words 200 times...and still going!

@RobertJeremiahSeal If that does not work, check for a clogged passage in the carb body. There are several, and they are tiny! Glad you like the videos.

Awesome video

THANK YOU STEVE Y WILL TRY AND GIVE YOU NEWS HAVE A NICE DAY GAETAN

you just saved me so much trouble thank you

@stevewatr

10 жыл бұрын

You are welcome!

@RobertJeremiahSeal Heat! Use a propane or Mapp torch, but do not over do it. Heat the bolt head, then strike it with a small hammer, then let it cool. If still not breaking free, repeat steps. For the one you rounded out, try clamping onto it with vice grips. Also try a penetrating product like Kroil or deep creep.

Steve, I had EXACTLY the same symptoms as you did and I tried your fix of lowering and raising the jet needle without any noticeable difference. However, what i did find finally is I had mixed up the main jet and starter jet as there are exactly the same thread bit difference pilot hole. Swapped the jets and Voila, everything worked as it should.

@stevewatr

8 жыл бұрын

interesting. I have also heard a partially blocked jet can give similar symptoms. some people report their carb blowing right off the manifold due to the backfire being so severe.

@1texasdad224

4 жыл бұрын

@@stevewatr can I ask u a question

@stevewatr

4 жыл бұрын

@@1texasdad224 what's your question?

@hunterfranks7495

3 жыл бұрын

Mine is back Firing so bad it blows the carb off. Bought a new cheap carb and still does the same thing...??

yes thank you Steve for me it was no.4 sloth finely have a good one

I cant believe it is a carb problem. I am having the same issue. I will try this solution.

So umm what timing mark on the flywheel do you use before you go to the top an put the cam in time?

@RobertJeremiahSeal Great news! Now lets see some video of her!

Put the carburetor back on and started up and let it set on choke for a minute or so and then took off choke and I had no sputter!! However I need to pop the cylinder head cover and clean and apply new high temp silicone to seal t off...having an oil leak on one side which causes a little smoking off exhaust (at least I think) after running for a few minutes!!

What position is the e-clip set at. I'm having the same issue

@stevewatr...it is 100% confirmed now...the quad runs great!!! I just got her back together and took her for a spin around town and she runs like a scalded dog!!! I was unable to perform all the fixes I wanted to do...but getting it to run was more important...and seeing as how this is going to be mud puppy I really don't care if everything works...or is rigged for that matter!! The bolts I stripped on the inspection cover...yeah I just JB welded it back on!!!

Having issues removing the bolts from the Cylinder head cover. I have already rounded one out and broke the head off the other. You recommend any methods to get these dang thugs loose!!

Mark the square top adjustments screw with white paint if it's tight see where the square is before braking lose set with proper clearance look where square head is then u know where it's got to be when tight so clock it a Lil bit different and tight let it rotate but work it out where it stops where u know it's right u don't got to hold it your welcome hope that makes sense

I have the same problem with a 1998 yamaha grizzly 600 if you give it gas and it does that it will blow the carb off, I have installed a new carb, a new ign. Coil, new ngk spark plug and adjusted the valves to specs. And dropped the exhaust just for good measure I am at a loss as to what to do next, still does the same thing, any suggestions will be greatly appreciated

@stevewatr

2 жыл бұрын

Sorry, but you have tried everything I would have tried by now. Only other thing I might check is ignition timing maybe?? Then again, I do not even recall if it is adjustable on these.

If i ever have a problem with a carb im coming to u for advice.

I wish I had all the answers, I have a Mikuni on a Makita generator that has me beat right now. But thanks for the comment.

Hey Steve, hoping you still monitor this I know it’s old. I have a 1999 Grizzly 600,having a terrible time with carb. Have rebuild it and keep getting backfire at 1/4 throttle, have moved the needle up and down without much success. I have not checked valves yet. Any magical advice. Frustrating

@stevewatr

2 жыл бұрын

Nothing off the top of my head. Leaking intake valve?? Just a guess. Leak down test would confirm this.

15 seconds in... clogged jets. My prediction

I have the same problem.Please help my

What did you use for a gasket on the valve cover

@stevewatr

3 жыл бұрын

I do not remember. Might have been black RTV because its oil resistant.

@brandonwillis7091

3 жыл бұрын

Ok thank you so much for replying to me fast

Hey Steve thanks for the videos they helped me tremendously. I have a problem with my grizzly now. Whole top end rebuild now I have this noise. I have a video on youtube click my name to watch

@stevewatr

9 жыл бұрын

Hi. Watched the video. First thing is make sure the valve clearances are correct. Another thought, I have seen a head gasket leak cause the same sound. Reuse of a head gasket and or improper torque of head bolts.

The needle slots change the richness and leaness. You need angled feeler guages . I wouldnt of went to 7 thousandth thats to much it 2 to 4 is your window do 3 the needle clip dont change the alignment of the needle it changes the height. The height changes the mixture.

@stevewatr

Жыл бұрын

Thanks. Do you think 7 thousandths might be why the auto compression release seems to not work?? This thing has never been easy for the starter to turn over for me unless it starts spinning from the right point in the cycle. Sometimes I'd have to bump the starter and let the crank bounce back to get it too a good point where the starter could push on through.

He needs to put the air fitter box on it is getting to much air. Mine did the same thing if you need parts go on amzon

Replace your starter apendix its getting grindy mine does that slightly and engages crappy once in a blue moon.

Yeah, but it gets great mileage this way. :-)

hello! if y got That right it wood be the second slot from the short side please correct me if im not doing thath right and thank you steve for your video it relly help Gaetan montreal canada

@stevewatr

7 жыл бұрын

Gaetan Bédard hello. I think I was not sure myself, so I'd recommend it like this. there's 5 slots, lets call the slot closest to the blunt end #1, and the slot closest to the needle point #5. I had the clip in #3 to start with, and it wasn't good. I then moved it to either #2 or #4, and nothing improved, so I moved it 2 slots in the other direction and it fixed my issue. so I'd recommend you move it one slot in one direction, and if it doesn't improve, try going the other way. hope tbis helps. one more thing, dirty carb, water in the fuel, and dirty air cleaner can also cause this type of issue.

Where are the other parts 7-12??

@stevewatr

2 жыл бұрын

Here is the playlist: kzread.info/head/PLC51C237EA13A0A49

I think i know what your problem is ...... you don't have a fuel tank :-)