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1998 yamaha bear trackers 250cc , What causes gas

1998 yamaha bear trackers 250cc , What causes gas to leak out of the bottom of the carb ? It looks like it is design because it has over flow tube, But the question is how to stop it from over flowing

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The float is stuck open. Try tapping the side of the fuel bowl to see if you can dislodge what my be in there making it stick. The best thing to do is to take the carb off the bike and disassemble it and clean it.
And when you put the carb back on put a in line fuel filter on and this will help out in the future.

Posted on Oct 04, 2009

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Posted on Jan 02, 2017

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2 Answers

No start on bear tracker 250 just backfires


then the timing is not set properly .

Jun 22, 2016 | ATVs

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Atv not starting at all


What's your year, make, model and engine? - And one question - the insulator/boot that connects your carb to your head: does it have a hard plastic shell or metal/rubber, rubber? The older Yamaha Bear Trackers and the like had a boot that was a metal housing that bolted to the head with a rubber boot glued to that where your carb attached with a hose clamp. Those boots? Garbage. Just a matter of time. The slightest hairline crack can cause a starve situation - you CANNOT create the vacuum needed for the carb to suck fuel out of the bottom/bowl if there is a leak at that boot. As the engine creates the vacuum that would pull that gas - the vacuum escapes from that crack in that boot. You MUST HAVE PROPER back pressure vacuum to pull the fuel out of that carb. Here's an easy test - if you can get it to turn over - then do it. A few good tries. Make sure your spark plug is clean and dry prior to doing this. After a few good tries - pull that plug out and let me know what it looks like. If it's dry? More than likely your loosing vacuum somewhere - you are not pulling fuel out of the carb and into the engine if that plug is bone dry. If it's drenched but nothing is happening you may have an electrical issue. Nothing major. It's either getting fuel in that chamber or it's not - find that out and we'll go from there. All The Best, Justin Lee, 17 South Industries, LLC

May 01, 2016 | ATVs

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Yamaha Timberwolf. How can I find model number to order parts


If you can tell me your vin - or your year I can tell you what model you have. But - if you go onto any parts site - such as cheapcycle.com or partsmonster - you name it - you won't need your 'model' # - just your year. You'd click - Yamaha OEM Parts, then ATV then Year - 1992 - 1998 was the Timberwolf - a lot of parts from the 99 - 04 Bear Tracker will work (just about only changed the plastics and carb in 99 - 04) same engine/transmission/rear end, etc. the brakes also went from drum to disc - but you'd click on the year - and then look - the timberwolf will be right there the 1992 - 1998 Yamaha Timberwolf 250 - I can't remember if they offered a timberwolf 350. If you can tell me the vin or year - like I said - I'll reply with your exact model # - but you can buy and order most parts just by model name and year 95 Timberwolf.

Dec 29, 2015 | ATVs

1 Answer

Yamaha Timberwolf. How do I find model number to order parts?


I apologize - my answer to the previous question didn't really clarify your actual question - Your VIN can be found along the frame rail - left hand side - about a foot or so ahead of your left foot guard -

26028714-jbdqfs5232kzbw0rj532ox50-2-0.png

If it's still there - your model number is here:26028714-jbdqfs5232kzbw0rj532ox50-2-2.png

If you can read your VIN - and here's a tip to know you're getting the whole number and it's not rusted away a digit; your second digit should be a (Y) - if you write down your VIN, second digit is Y so you know the placement is right - the 10th digit is the year. And here are the breakdowns for that 10th Digit:

(For all Yamahas - not just the Timberwolf):
88 - J, 89 - K, 90 - L, 91 - M, 92 - N, 93 - P, 94 - R, 95 - S, 96 - T, 97 - V, 98 - W, 99 - X, 2000 - Y, 01 - 1, 02 - 2, 03 - 3

From 1992 - 1998 the Yamaha 250 4-stroke, shaft drive, trail bike was the Timberwolf.

From 1999 - 2004 the Yamaha 250 4-stroke, shaft drive, trail bike was the Bear Tracker.

*****SAME ENGINE, SAME TRANSMISSION, SAME REAR END, TIRE SIZE, PULL START - THINGS THEY DEFINITELY CHANGED IN 1999 WHEN THEY STARTED CALLING THEM THE BEAR TRACKER: - PLASTICS BECAME A LITTLE LONGER I BELIEVE; AND THE SEAT WITHOUT A DOUBT BECAME LONGER. THE CARB WENT TO A CONSTANT VACUUM - INSTEAD OF THE SLIDE CARB WHERE THE THROTTLE CABLE WENT THROUGH THE CAP LIKE THE TIMBERWOLF. HARD TO REMEMBER - BUT I THINK THE TIMING CHAIN TENSIONER BECAME UNADJUSTABLE - AND NOT MUCH ELSE CHANGED. IN 99 THEY EVEN KEPT THE BRAKING SYSTEM THE SAME. SOMETIME AROUND 2000, 01 OR SO THE BRAKE SYSTEM CHANGED FOR THE FRONT WHEN YAMAHA WENT TO DISC BRAKES. HOPE THIS HELPS. ANYTHING ELSE YOU NEED TO KNOW ABOUT YOUR TIMBERWOLF JUST LET ME KNOW - I'VE OWNED, REBUILT, BOUGHT, SOLD, TRADED A TON - I'VE CURRENTLY GOT A 99 BEAR TRACKER THAT IS THE MOST DEPENDABLE 250 4 STROKE I'VE EVER OWNED AND A 1996 YAMAHA WOLVERINE 350 4X4 - I'VE REBUILT THEM FROM THE BOTTOM TO THE TOP. THOSE BIKES ARE GOLDEN IF YOU TAKE CARE OF THEM AND DO A LITTLE ROUTINE MAINTENANCE. ALL THE BEST - JUSTIN MCCARTNEY

THE 99 I MENTIONED THAT I STILL HAVE:
26028714-jbdqfs5232kzbw0rj532ox50-2-5.jpg

A 98 I BOUGHT WITH THE ENGINE IN A MILK CRATE THAT I BOUGHT, REBUILT & SOLD:
26028714-jbdqfs5232kzbw0rj532ox50-2-9.png

A 2004 I BOUGHT, REBUILT AND SOLD:
26028714-jbdqfs5232kzbw0rj532ox50-2-14.jpg
All the best - let me know if you're ever in a jam with yours; not too much I haven't seen, fixed or had to deal with.

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How do I hook up a choke cable on a 250 chinese enduro dirt bike?


Hi, Frank for more information about your question and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
YAMAHA YZ250F Owner Service Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

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check fuel is getting throgh the carby by opening the blead screw at the bottom of the bowl!
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The battery on my 1995 Yamaha Virago 250cc is not working


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Starter button may need checking also the solenoid
week compressin or leaking diaphrams in carbs will cause it too
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3 Answers

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yes there is a tube that goes on it. It hangs straight down about an inch or two past the botom of the 4 wheelers frame. It is for a overflow of gas, which is usally caused by either dirt in the carb holding the float to high and allowing the gas to just run straight thru and out the bottom of the carb or a bent or maladjusted float setting. But since you said it just started, i would suggest this. I have fixed many and many bikes by simply removing the carb bottom and cleaning it with carb cleaner. It onlty takes a small piece of dirt between the float needle to keep the needle from making a good seat in the carb. Clean it well Please be carefull and keep the carb well away from your face as to not get any blowback of cleaner in your eyes(IT BURNS) This should fix your probblem

Let me know

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