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for $42. Watch a step by step tutorial on how to adjust the idle mixture screw on a typical carburetor. Cylinder head removal procedures for the 2006 Yamaha Rhino 660 are the same for 2004 and 2005 models. This is a top quality CNC Machined KIPA Brand Carburetor, Pefect Idle and Top Accelerator Status, help to keep your ATVs UTV running at Top performance. 2. Page 118: Idle Speed Adjustment To prevent this, the valve clear- increase the engine speed, and in direc- ance must be adjusted regularly. Turning out does nothing either. Remove the thickness gauge. Also, I had to choke it this morning because it is cold here and it seems fine. Also clean your spark arrestor and make sure it is clean. Write down your previous mixture settings and start from there to adjust the mixture for starting and assure a slightly skipped idle. It did bump the engine speed up when it was turned left all the way though. That's the right plug. View Full Version : Rhino 660 Running to Rich. a little play in the thumb throttle is OK. i was adjusting mine like a dirt bike throttle for instant response and it ended up being too tight. I have noticed it making a popping noise like spark knock. He's worked on our sea doos and done a great job. I ordered this carburetor to replace the one I had on my 2007 660 rhino. Ask what jets were put in the carb, you don't need a big jet change with a pipe only. For a better experience, please enable JavaScript in your browser before proceeding. Either you can find these in your ATVs operational guide, or you can do a quick search to see what is appropriate given the varying terrains, speeds, and your personal use of the throttle (and vehicle). Hello, I just purchased a Rhino from a family friend. It also stalls after a couple of minutes of idling. What is the best needle clip position for raptor 660 with yoshimura pipe, stock airbox setup and 150 and 155 main jet sizes and what is the # of turns out on the mixture screws. 2009 Yamaha Rhino 787 Hot Rod Rhino Sheave, Falicon 734 Cylinder, +6 Falicon Stroker Crank, Benchmark +1 Ported Head & T/B, JBS Deshrouded Valves, 10:1 CP Piston, 3D MSD, Dynatek Coil, Dual Muzzy's If you need any help or have any questions give me a call 304-673-2602 or 304-877-3419 James Davis, 131 Davis Ct., Mt. Replace all the jets and gaskets don;t get them mixed up. -Phineas Fletcher. With Yamaha jets, a 150 main, would be LOTS. Adjust: brake light operation timing M MMM M MMM M MMM M MMM M MMM a. X2 on the new plug. Did a complete teardown on one. OK.so I started it up this morning and it was still doing it. Thanks, Greg He is very particular about care and it is pristine. Reset idle to recommended settings and test ride motorcycle. If the engine rpm doesn't pick up after a 1/4 twist, turn it back to the original spot. Cleaned it up and put it back in and it seems fine for now or at least until the spark plug gets all crappy again. Try a new plug. Rhino exhaust silencer (Benz) If you want a professional and safe way to quiet the exhaust noise, Hopefully that helps the troubleshooting. Take off the left (passenger) side cover and the idle screw is held in place on the left front corner of the carburetor float bowl, down and to the right of the fuel petcock. How to adjust the idle on a 04 660. Now, adjust between these two settings to achieve highest RPM and smoothest running engine. Covers complete tear down and rebuild, pictures and part diagrams, torque I took it to a guy I know that works for a large ATV dealer and works on them on the side. Another update, fuel pump is fine. 95 6. If engine bogs or hesitates during acceleration, richen idle screws 1/4 to 1/2 turn and see if that helps. I ride a raptor 660 2004. "When life's never dull, wear a hull for your skull!" Loosen the idle speed screw's lock nut with a 3/8-inch open-end wrench. Whether your a professional mechanic or a novice this video will show you all you need to know to properly set the idle mixture. You wont hear spark knock at idle though. I agree on the loose bolts on the shifter and while you have the engine cover off its easy to adjust the idle on the side of the carb there is a big adjuster nut on top of where the throttle cable goes in keeping the idle low it make shifting alot easier also when the motor is cold and you have the choke out it causes high idle and that again makes shifting gears hard .. so I always try to turn the choke off Get new screws, if the screws are a bit dog eared. Im pretty sure thats not the issue. Turn this screw counter-clockwise to lower the idle, clockwise to raise it. Push the ignition coil firmly against the flywheel and tighten the flange bolts. IDLE SYSTEM: (Idle - 1/8 throttle) The HSR idle system has two tunable components: the Pilot Air Screw and the Pilot Jet. The owner of it picked it up and test drove it. Also said the valves were making noise and need adjusted. Find out if he used Dyna jets. Hopefully that takes care of the issue. He is very particular about care and it is pristine. Let us know what you find. Push the throttle control cable until the required high idle RPM is obtained. A forum community dedicated to Yamaha Grizzly owners and enthusiasts. Is there a fix for it and if so what? So now its spring and i took it out again but i noticed that the clutch isnt catching very well. Started it and started to die after about 30 seconds and when I pushed it back in, it ran better so I don't think the choke is stuck. I have a 660 Rhino 4x4 that is very cold natured. Check and make sure the carb return line loops above the fuel pump. It provides factory specifications, step-by-step instructions and illustrations to guide you through the repair process. Air filter looks good and I can't find a spark arrestor on the pipe. Its been a while ago but I think he was having the same issue because he thought it was vapor locking. Rev engine in neutral and note how RPMs return to idle. I had a 2000 sortsman 500 and I adjusted the idle that way before. And now I'm having issues with it fouling plugs. Turn this screw counter-clockwise to lower the idle, clockwise to raise it. I put the pilot screw at 2 turns out. 5. Gap at .028". JavaScript is disabled. 2001 yamaha raptor 660 valve adjustment torque. Slide or tap the high idle stop to the right until it is against the engine control lever. i had to back it off a little and allow a slight amount of slack, The cable on my dad's grizz was a little tight, it didn't cause the idle to raise when it warmed up. Valves have got to be right and that is basic as it sets vacuum and flow particularly at idlestart there and then tweak the idle screw after clean plug. This article discuss the many causes to why a 2004 or 2005 Polaris Scrambler Aluminum Products full aluminum skid plates, VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada, grizzlyowners.com is an independent Yamaha enthusiast website owned and operated by VerticalScope Inc. Any smoke out the back and what color? Any info. It runs like a raped ape now. Pull the spark plug and see if it smells like gas, after running. All I did was take the carb out and Its a handbook that covers all aspects of Yamaha Raptor repair.In terms of appearance, a downloadable Yamaha Raptor repair How to adjust idle Yamaha Grizzly 660 refers to the process of adjusting idle speed on the 4-wheeler ATV. 4. The screw is facing outward; its a bigger round screw with a phillips head in the middle. Any ideas on what could be going on? Hope, WV 25880 Despite having three different engineering designs since Sounds like its loading up at idle.x3 on valves. Be sure to reset the idle stop to a low, or if you prefer, no idle ment however, should be left to a professional Yamaha service technician. I was wondering if anybody is having the same problem as I'm having with cold starts? HI everyone. They are sized differently. Tighten the cable clamp screw. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more! If you hear spark knock, it is a lean condition. One of two utility vehicle makes that Yamaha debuted in 2004, the Rhino UTV (utility task vehicle) was the longest-lasting. Open to all Grizzly models including 700, 660, 600, 350, and 125. With choke off and running at operating temperature, the Atv idles perfectly, although a little high. lol. Other than that I believe it is stock. 2007 Yamaha Rhino 660YXR660FA 4x4; 2007 Yamaha Rhino 660YXR660FAEX 4x4 Exploring Edition; 2007 Yamaha Rhino 660YXR660FDU 4x4 Ducks Unlimited Edition And now I'm having issues with it fouling plugs. Powered by vBulletin Version 4.2.5 Copyright 2021 vBulletin Solutions Inc. All rights reserved. Got it running pretty good. You describe it as a popping noise, check to see if the header is loose or cracked. 6. Instant download of the factory repair manual for the 2004-2007 Yamaha Rhino 660 side by side. If someone reset the slide needle too far that could have some impact on your idle fuel flow and may need to be checked if the above does not solve. You might try running some upper cylinder cleaner through it to break away any loose carbon and get it out of the head- some don't like this but I always figured it is going to move sooner or later so while it is small and loose get it out. I didnt ride much the winter but a few times on the ice and mud. Ok. It has brand new fuel. Not as strong as a solid cage, but works great if you want to keep the functionality of the dump bed3986, intake valves always get tight and dont make any noise when they do. yes, smaller main and turn the idle mixture screw in a little if it has one. A downloadable Yamaha Raptor repair manual, termed Raptor service manual or online workshop manual, is a digitally transmitted book of repair instructions that is electronically delivered to your computer within seconds. Set the idle screw by ear. Page 119: Front Brake Pad Check Assume filter clean and fuel delivery ok. also try and drain the fule out of the float bowl, condensation can build up in there causing it to run poorly the valves were too tight so they were actually being held open and not closing all the way. He is gonna tear into the carb now. and it may only happen when its warm because the valve clearance decreases as metal expands. This adjust- tion b to decrease the engine speed. Look up Baxter Built Fabrications on here under vendor page, I bought mine like this, and couldn't find this cage anywhere for purchase, but it's simple if you have a bender. Click on the image below to download the cylinder head removal and installation procedures. The air screws purpose is to fine-tune the mixture at idle. I was woundering about that. Content on grizzlyowners.com is generated by its users. I have noticed it making a popping noise like spark knock. If the idle mixture adjustment screw is located behind the carbs slide tower (airbox side) then the adjusting needle regulates air flow into a fixed flow of fuel intended for idle. The carburetor has been jetted and it has a pipe. It was the only side-by-side that Yamaha still offered for 2011 in a 700 cc model. Hes gonna tear into it tonight. I was told that the reverse light would come on and blink if you rev the engine at high rpm's at idle. Turning in does not lower rpms, stumble, etc. Thanks for any ideas. The pilot jet can be exchanged for a richer or leaner one if needed (see the note It would only go 32mph and that's down hill. When I get it to idle at it's lowest point, I try to adjust the pilot screw with no results. Tighten the idle speed screw lock nut. NOTE: Adjust the ignition coil air gap equally at both sides. ADJUSTING THE BRAKE LIGHT SWITCH/ CHECKING THE FINAL GEAR OIL LEVEL 1. grizzlyowners.com is not in any way affiliated with Yamaha Motor Company. So I immediately took out the spark plug and it did smell of gas. My rhino was like other reviews backfiring-sluggish-had to run with the choke out so and so on. The screw is facing outward; its a bigger round screw with a phillips head in the middle. My old carburetor had a torn diaphram and a new one cost around $30+ so its obvious to buy a new carb. To adjust the settings of your throttle, you will need to review the particular settings that are recommended for your vehicle. Over the phone he said it could be intake valve, choke sticking, or plugged air filter. To Decrease the High Idle RPM Refer to the above steps 1, 2, and 3. I do have some play in my thumb throttle tho. One larger jet is the primary jet and the smaller one, is the secondary. Check: brake light operation timing Incorrect Adjust. Torque the high RPM stop bracket screw to 05-15-2011, 06:07 PM. The idle screw sets the butter fly's to sync on that model you will need to plug it into a computer and read the TPS readings #2 is the TPS sensor Stock pilot should be fine. It has always been hard to start cold. If that is ok, then check the valve adjustment. My Rhino is a 2004 model. this will cause a backfire. your air jet needle is 1.5- 2 turns stock lightly seat it and turn out if tightly seated you can snap the tip of the needle adjust where engine idles highest intake if i adjust mine to where there is no slack it will idle fine cold, but will start to idle a little high once warm. Stop at that instant and turn it back in again. If you're not 100% certain you have peak idle, start counting the turns out from the spot you think is peak idle. [Archive] 2007 Rhino 660 carb. I have a 2005 Yamaha Rhino 660 recently it became hard to start when cold pulling the choke doesn't choke it enough to start it but can place hand over intake and cranks fine, after letting run with choke in several minute to warm up when I push the choke in it will idle Here's an update. The carburetor has been jetted and it has a pipe. I just had a new clutch installed last summer. It also stalls after a couple of minutes of idling. you may also want to check the throttle cable adjustment. Other than that I believe it is stock. Those are some quick things. will be greatly appreciated. If I try to adjust the large idle screw to lower rpms, the machine will die. ok thanks. Fitment: Replace for following models. When did the other guy put the pipe on and jet it??? Continuous high idle and idle screw no help Does your artic cat have a carb cable if so it will have an adjustment or a clamp on the cable where it attaches to the linkage..check make sure it is set to low idle..and your idle screw is adjusted to low idke..meaning cable adjusted to lowest possible position when the throttle is released..then make your final adjustment using you idle screw..good luck truggyboy. I have a buddy who works on ATVs. The pilot jet controls the total amount of fuel passing through the idle system. No old in it. Hello, I just purchased a Rhino from a family friend. Adjusted on the throttle cable and choke cable some more.

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