Yamaha kodiak 400 backfires through carb

Yamaha kodiak backfires through carb. Also, most of the time, you can pop the plug out, and the pipe off, shut the fuel off and drain the carb bowl, then kick it over and clear it out with the bike upright. How universal are small carb diaphragms? Imperial Hwy Brea, CA A leaking gas valve can do more than just waste gasoline. Find product information, price, trims and colors for Polaris Scrambler Then it starts spitting and sputtering when I gas on it.

Since then my carb has been sounding like it is backfiring. Once there, the only way it can get out is through the drain tube on the bottom.

Genuine Mikuni Yamaha Kodiak 400 OE BSR33 Carburetor

Starter fluid was helpful but would not start again. No problems showed up there. Im going to purchase a Yamaha carb kit for the Deere and see if it will work, I dont see why it Amazon. My problem is it backfires when I let off the throttle when the Rpm's are up. An air screw will be on the intake side of the carb while a fuel screw will be on the engine side of the carb.

Idles fine. After running through sand at low RPM for about 15 minutes it dies, sounds like it is running out of gas. Now the popping and backfiring is back at mid-throttle. I have a 06 raptor and recently i added a jet kit and a pipe. A downloadable all-terrine-vehicle repair manual is a digitally delivered book of instructions providing step-by-step repair procedures, maintenance and a troubleshooting guide. Idles poorly - Fluctuations in idle RPM, stalling.

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Speedfeed to Stihl adapter help. It starts and runs great in warm weather above 70 deg. Replaces present Fuel Petcock, Just replace and ride again.

How To - Yamaha Kodiak 400 - Complete CARBURETOR Clean Rebuild Carb Kit - Grizzly Rhino Bear

Things can be running seemingly fine everywhere else, but smoke from the exhaust can tell a whole other story. I've had the 4 wheeler at the shop for over a month and they've checked the timing, replaced the ignitor, laped the valves, put a timing light on it, and it's still not firing at the right time.

yamaha kodiak 400 backfires through carb

It is often found in the fuse box located in the engine bay and functions as the primary electronic switch that controls power to the fuel pump. It seems to do it worse when its cold. The gas cap vent is pluged. Start by selecting a Category. What would cause this? It is jetted like it said and the fuel mixture screw is 3 turns out like the instructions say. Brute won't start.

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Also for: Big bear professional yfmfwt. Yamaha Parts House is owned and operated by Babbitt's Online. Also, generally the mid pipe and head pipes of most aftermarket systems are larger diameters than stock which allow for added airflow to pass through quicker.

Mechanic and Repair. Mikuni Carburetor Rebuild Below Your carb should now be free of all fuel pump parts and regulator chamber parts. I looked on the OEM fiche and the tube doesn't 96 Sportsman won't rev.

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All parts and accessories added to this ve- hicle should be genuine Yamaha or equivalent components designed for use on this ATV and should be installed and used according to instructions. Tried another coil and new plug.Why does my ATV engine pop when I give it throttle? Here is exactly what reader Jayson asked the Answerman it is long and extremely detailedfollowed by his answer:.

I have a arctic cat manual shift. The problem, The machine will start fine and idle like it should, once you get into the throttle it will start to misfire and back pop but will not die even if you hold the throttle, it just pops. Last summer I began to have battery charging issues, my dad, who was the original owner of the bike, came over we started looking into fuses and wiring connectors and YouTubed the symptoms. The battery began charging correctly and everything seemed to run fine, appropriate voltage back and such.

I then put the carb back on after a thorough cleaning and installing a inline filter and had the same problem. I figured quite a long shot but what the hell. I put the meter back on it and I was getting almost seventeen volts back, which was not the case when we first installed it.

With the headlights on it drew down to almost perfect voltage, After three or four times of riding it it has begun to run like garbage again. Backfiring and popping and dying and it would only start and run with the choke halfway on.

Today I cleaned the carb and once again it was still very clean inside. I put it together checked the voltage at an idle with the lights off and was getting a good reading and ran it around the yard a little and it began to misfire and pop I pulled it in checked the volts again and was back up around seventeen, lights on it dropped to Have you heard of anything like this?

Should I just tear into the flywheel and stator and see what I find? I really want to repair it and put it back to work. Holy Moly, Batman, this is the longest question and the most detailed I have ever received. I love it! That is what forums and the World Wide Web is about. Sharing is caring.JavaScript seems to be disabled in your browser. You must have JavaScript enabled in your browser to utilize the functionality of this website.

General : Don't need to ride with the choke opened. Super fast shipping!!! Got it in 2 days, Florida to me in Colorado. What a difference. If you are having trouble with your carb and cleaning doesn't help. Come here and buy a new carb.

Yamaha Kodiak carb adjustment

Especially if you bought a used bike. I finally gave up on my supposedly rebuilt carb, bit the bullet and bought this Genuine Mikuni, bolted it on and haven't had to adjust anything but the idle speed. Now if I have to rebuild in the distant future I'm at least starting with an "unmessed with" carb.

Who knows what the prior owner did to the original carb.???? This carburetor bolted right on and my Yamaha Big Bear and started right up. It runs great now. Original Mikuni is the way to go.

yamaha kodiak 400 backfires through carb

Got it with in 2 day's put it on my kodiak hit the starter and it fired right up, throttles out good no adjusting to it. Thank's guy's. Ive bought 3 carbs for my atv and had nothing but problems. Bought this one installed and cranked right up and ran perfect. Thank you so much.

This carb came from MIkuni with the fitment specified as only for the Kodiak models. If the part numbers are the same, then this carb will work for you. Unfortunately, this carburetor is not correct for your year or model Kodiac FW Ultramatic. We do not list your Kodiak in our fitment guide, which is provided by Mikuni. I checked our stock and we also do not carry a replacement carburetor or rebuild kit for the carburetor for your Kodiak.

There is a brass emission control seal cap over the space where the screw should be located and you'd have remove that cap to adjust the screw. I cannot confirm there is a screw in this space, however, because I would not be able to sell the carb once I removed the cap.

It is conceivable that Mikuni could make this a permanent adjustment as well. The Yamaha part number is 5TE-E This is not the correct carb for the Kodiak models. The carbs for the and appear to be identical. However, I compared the OE part numbers for the and Kodiak models.

The beginning of the part number is slightly different for these models, so I cannot confirm this carb will fit. There may be a very minor difference that would not be noticeable, or it may be a more significant difference that may effect performance. We have no way of knowing.I have a 06 raptor and recently i added a jet kit and a pipe. Since then my carb has been sounding like it is backfiring.

yamaha kodiak 400 backfires through carb

It is jetted like it said and the fuel mixture screw is 3 turns out like the instructions say. I've cleaned it out and put fresh gas back in and Changed the spark plug but still the problem persist, What is causing this? Jetting reffers to throttle position and not RPMs so speed is not a factor. Heres what you need to do Lean means less gas, rich means more gas. Again smaller is leaner, larger is richer. When jetting your carb if you find that you need to turn the pilot jet all the way in to improve response then you likely need to switch to a smaller number of screw.

If on the other hand you need to turn it more than 2. Now that you understand the why turn the screw IN to lean out the mixture a little bit. Don't turn it in too far, a lean condition over a period of time causes engine damage.

Turn it in half a turn at time and test for results. The book probably says that to keep your engine safe since being too lean causes engine damage while too rich usually just makes the engine shut down. Hope that helps. Sometimes drilling a few 1" holes in the airbox cover will increase air flow and improve running.

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The mixture is running too rich. Clean the carb. That will dissolve all varnish and gum. You mentioned he lapped the valves, but it sounds like the intake valve is not seating properly. This would cause it to backfire through the carb. Have him replace the intake valve and spring and you will probably be good to go. Hope this helps and good luck.

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I have a Problem. I rebuilt the Carburator on my Yamaha Kodiak It Starts fine. It Idols fine. I can even putt around in 1st gear. But when I give it throttle and go it will want to die. Sometimes I can drive it and it is fine, BUT most of the time when I go and shift from 1st to 2nd and try to give it gas, it chokes out or looses power and then dies.

I thought maybe the fuel line was too long because the gas is gravity feed so I shortened it. Still acts up. I know of the screw at the bottom of the carburator but isnt that just idol speed adjustment?

Please, Any Suggestions?

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Mikuni Needle Jets. I found a screw on the side but at the bottom of the Carb. There is a small black hose that comes off of it. It just goes down and is not connected to anything. The screw was closed or tighten all the way. When I opened it up fuel started running out. Is that an adjustment? Then there is the larger screw that you can turn with your fingers. That is an adjustment also? I figured out a couple of things and it seems that I have fixed the issue.

yamaha kodiak 400 backfires through carb

I had an air lock in the fuel line. I also had the Intake vent that goes into the Air Filter box in wrong. It was pointing out the side next to my right leg. While driving I had a tendency to block that intake thus causing it to choke out. That Intake Vent is designed to go in the up position up under the front part of the Seat.

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Atv is backfiring through carb.?

Recent Photos. View More Photo Galleries. Unread PMs. Forum Themes Elegant Mobile. Essentials Only Full Version. Mud Master. Yamaha Kodiak carb adjustment Does anyone know how many turns out the pilot jet should be?

I cleaned my carb and forgot to check. Now it idles way too high. This is on a Yamaha Kodiak It's a Mukuni BSR Is the pilot screw part 14 or part 18? Should part 14, Pilot Jet, be turned out about 2 turns? Should the Pilot Jet be fully seated and all adjustments made with part 18, Pilot air jet. I have never moved part 18 but had part 14 out. Part 14 is inside the carb bowl, part 18 is outside the carb facing the air box.

Mud Pro. The pilot jet is inside the carburetor. Most of the time you can turn them out about 2 turns or so and they are fine. PART 2 is what controls your idle. You should turn it counterclockwise to decrease the idle of the bike.