yamaha big bear 400 carburetor float adjustment

). The Big Bear's engine was fed a by a single carburetor. installed in 30 minutes and now I have my ATV back! I seem to recall that if you loosen up the boot, hold your tongue just right, and squint just like Clint Eastwood; you can twist the carb around far enough to do it without pulling the tank... A forum community dedicated to Yamaha Grizzly owners and enthusiasts. adjusting should be left to a Yamaha dealer Hot exhaust system. Fuel may also be a skin irritant, so where neoprene gloves when possible. I have been having trouble with the carb. The adjustment Could injure the eyes. Question by: Joe on Oct 10, 2018 3:43:00 PM. It is possible that both the Kodiak and the Big Bear share a Mikuni BSR carb, but I honestly don't know. You will spend way more $$$$ trying to fix the prior owners screw ups and have nothing but headaches chasing problems. Thank you so much. JavaScript is disabled. Yamaha dealer, who has the necessary profes- WHAT CAN HAPPEN sional knowledge and experience. Original Mikuni is the way to go. The carburetor could be adjusted to alter the engine's idle speed as well as the amount of air mixed into the carburetor's pilot fuel system, which fed the engine from idle to a quarter-throttle. Copyright 2020 Leaf Group Ltd. / Leaf Group Media. Genuine Mikuni Yamaha Kodiak 400 OE BSR33 Carburetor. Exact fit. We have no way of knowing. Any help would be great. how to adjust carburator on big bear 400 throughly cleaned carb adj valves pipe is glowing red backfires and misses - K and N Yamaha Big Bear Yfm350fw Air question Search Fixya Press enter to search. That worked and I didn't touch them. Some fuel will drain from the carburetor. Adjusting the carburetor float on an ATV is a necessary step in the process of rebuilding or rejetting the carburetor. Problem solved, now I am having problem with it spitting and popping when it gets to running temp after about 2 to 3 minutes won't stay running. most carburetor adjustments should be left to a Hot exhaust system. Thanks I would like to know why the Yamaha engineers put an air jet needle on the bottom where you have to take the fuel tank off just to get to the carb and remove it to do the adjustments what were they thinking??? To submit your questions or ideas, or to simply learn more about It Still Works, contact us. Page 129: Carburetor Adjustment The carburetor is a vital part of the engine and POTENTIAL HAZARD requires very sophisticated adjustment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amaha dealer, who has the necessary profes- WHAT CAN HAPPEN sional knowledge and experience. https://www.yamahapartshouse.com/oemparts/c/yamaha_motorcycle/parts. Think of it like the filler float in the reservoir tank of a toilet. A lot of the people that were on this site have gone over to Rocks and Ruts forum. +((!+[]+(!![])+!![]+!![]+!![]+!![]+!![]+!![]+[])+(+!![])+(!+[]+(!![])+!![]+!![]+!![]+!![]+!![])+(!+[]+(!![])+!![]+!![]+!![])+(!+[]-(!![]))+(!+[]+(!![])+!![]+!![])+(!+[]+(!![])-[])+(!+[]+(!![])+!![]+!![]+!![])+(!+[]+(!![])+!![]))/+((!+[]+(!![])+!![]+!![]+!![]+!![]+!![]+!![]+!![]+[])+(!+[]+(!![])+!![]+!![]+!![]+!![]+!![]+!![])+(!+[]+(!![])+!![]+!![]+!![])+(!+[]+(!![])+!![])+(+!![])+(!+[]+(!![])-[])+(!+[]+(!![])+!![]+!![])+(!+[]+(!![])+!![]+!![]+!![]+!![])+(!+[]+(!![])+!![]+!![]+!![]+!![]+!![]+!![]+!! | If skin or eye contact does occur, flush immediately with water, and if irritation persists, contact a medical professional. 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. Reattach the float bowl to the carburetor. Start the engine and let it idle in place for three to five minutes to warm the engine to operating temperature. genuine part, very fast shipping even across the border into Canada. You can use this section to calculate shipping costs on all available methods for the item on this page, or your entire shopping cart. Who knows what the prior owner did to the original carb.???? Do not stop the engine. This process is automatic. (I have a 90) The only other adjustement was idle speed located on the throtlle linkage of one carb. The fitment information we have from Mikuni is that this carb will only fit 2000-2005 models. This carb came from MIkuni with the fitment specified as only for the Kodiak 400 models. OEM is an acronym for original equipment manufacturer, which means that the 2004 Yamaha Big Bear 400 4WD YFM40FS CARBURETOR OEM parts offered at BikeBandit.com are genuine Yamaha parts. Shut off the fuel delivery switch, and remove the carburetor. Mount the ATV and accelerate to a moderate speed from a standstill. Got it in 2 days, Florida to me in Colorado. Continue this process till the float is within specifications. There may be a very minor difference that would not be noticeable, or it may be a more significant difference that may effect performance. Set the carburetor in a clean and well-ventilated work area. // ]]>. What you might what to do is to go to a Yamaha parts seller (see link) and compare the part number from a 2001 Kodiak 400 (YFM400A) to your Big Bear. I checked our stock and we also do not carry a replacement carburetor or rebuild kit for the carburetor for your Kodiak. Turn the screw counterclockwise 2 1/2 turns to reset the pilot air mixture. Count and record the amount of turns needed to seat the screw. Page 117: Adjusting The Engine Idling Speed The Big Bear's engine was fed a by a single carburetor. Page 116: Adjusting The Carburetor Therefore, Improperly purging the exhaust system. This fact prompted Yamaha to produce its first camouflaged ATV in 2000 with the Buckmaster Edition Big Bear. Adjusting the carburetor float on an ATV is a necessary step in the process of rebuilding or rejetting the carburetor. There are usually four screws attaching the float bowl to the carburetor. [])), +((!+[]+(!![])+!![]+!![]+!![]+!![]+!![]+!![]+!![]+[])+(!+[]+(!![])-[])+(!+[]-(!![]))+(!+[]+(!![])+!![]+!![])+(+!![])+(!+[]+(!![])+!![]+!![]+!![]+!![]+!![]+!![]+!![])+(!+[]+(!![])+!![]+!![]+!![]+!![]+!![]+!![])+(!+[]+(!![])-[])+(!+[]+(!![])+!![]))/+((+!![]+[])+(!+[]+(!![])+!![]+!![]+!![]+!![]+!![])+(!+[]+(!![])+!![]+!![]+!![]+!![]+!![]+!![])+(!+[]+(!![])+!![]+!![]+!![])+(!+[]+(!![])+!![]+!![]+!![])+(!+[]+(!![])+!![]+!![]+!![])+(!+[]+(!![])+!![])+(!+[]+(!![])+!![]+!![]+!![]+!![]+!![]+!![])+(!+[]+(!![])+!![]+!![]+!![]+!! The adjustment Could injure the eyes. Put on, atv ran like a new machine. Especially if you bought a used bike. You must have JavaScript enabled in your browser to utilize the functionality of this website. With one hand hold the carburetor and hold the impact driver in place. Yes, this carb should fit your Kodiak 400 (YFM4FASGR) compared the carb on your ATV (standard 4x4 edition) to the 2004 hunter edition listed in our fitment. How to Adjust the Carburetor on a 1970 ... How to Change the Clock Time on a 2005 ... How to Adjust the Idle on a Honda 50R ... How to Adjust the Idle in a Toyota V6 ... How to Reset the Maintenance Light in a ... Take the time to locate the spark plug cable, idle adjustment knob and pilot air screw before warming your Big Bear's engine to avoid burning yourself on heated engine and exhaust parts. Turn on the fuel selector valve, and inspect for leaks. Oh yea I did replace the plug and clean out the fuel tank. Turn the pilot air screw -- located on the bottom of the carburetor and directly below the engine intake flange -- clockwise with a flat-head screwdriver until it is lightly seated. VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada. It's hard to see, but the port for the air/fuel mix screw is on the spigot side of the carb, directly under the … Typically there will be two clamps holding the carburetor in place, one on a boot to the intake (motor side), the other to the air box. Check the bowl gasket to be sure it is seats properly and will not leak. Manual will be automatically added to "My Manuals", Offroad Vehicle Yamaha BEAR TRACKER YFM250XP Owner's Manual, Offroad Vehicle YAMAHA BR250F Service Manual, Offroad Vehicle Yamaha BANSHEE Owner's Manual, Offroad Vehicle Yamaha BANSHEE 350 Owner's Manual, Offroad Vehicle Yamaha BRUIN 250 Owner's Manual, Offroad Vehicle Yamaha BRUIN 350 Owner's Manual, Offroad Vehicle Yamaha BIG BEAR PROFESSIONAL 400 YFM400FPT Owner's Manual, Offroad Vehicle Yamaha BIG BEAR 4X4 YFM40FP Owner's Manual, Offroad Vehicle Yamaha BIG BEAR 4X4 YFM400FWNM Owner's Manual, Offroad Vehicle Yamaha Big Bear YFM350UBL Owner's Manual, Offroad Vehicle Yamaha Big Bear YFM400R Owner's Manual, Offroad Vehicle Yamaha BIG BEAR 4X4 Owner's Manual, Offroad Vehicle Yamaha BIG BEAR YFM400FPR Owner's Manual, Offroad Vehicle Yamaha BIG BEAR YFM400FPS Owner's Manual, Page 10: Location Of The Warning And Specification Labels, Page 21: Description And Machine Identification, Page 26: Oil Temperature Warning Light Checking Method, Page 59: Reverse Knob Operation And Reverse Driving, Page 71: Ride With Care And Good Judgement, Page 108: Periodic Maintenance And Adjustment, Page 110: Periodic Maintenance Chart For The Emission Control System, Page 111: General Maintenance And Lubrication Chart, Page 113: Engine Oil And Oil Filter Element, Page 136: Brake Pedal And Rear Brake Lever, Page 139: Adjusting The Rear Brake Light Switch, Page 141: Cable Inspection And Lubrication, Page 160: Recommended Engine Oil Classification, Page 169: Yamaha Extended Service (Y.e.s. The Web's most trusted source for 2007 Yamaha Big Bear 400 IRS YFM40FBW CARBURETOR OEM Parts. Please enable Cookies and reload the page. If they do not want to turn, do not force them. Never adjust your Big Bear's idle without first warming the engine. It ran a little hot the other week and I got it home took off the rad and flushed it drained the system installed new antifreeze. The beginning of the part number is slightly different for these models, so I cannot confirm this carb will fit. Most Improperly purging the exhaust system. Your browser will redirect to your requested content shortly. It’s a little more expensive than the no name brands but you get what you pay for. Copyright 2020 Leaf Group Ltd. / Leaf Group Media, Yamaha YFM400NM Service Manual; Yamaha Motor Corporation. The ATV should accelerate smoothly without hesitation. There are two methods, and a few simple steps to adjusting the floats on an ATV carburetor. It's hard to see, but the port for the air/fuel mix screw is on the spigot side of the carb, directly under the center of the butterfly throttle valve, facing downward.

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