I have a Yamaha 250 4X4 Timberwolf, haven't had it very long but have taken it out two times so far. The last time was about 2 months ago when i went thru mud and water. I cleaned the unit up as good as I could and it has been in the garage since. Tried to get it out a couple of days ago to find all brakes appeared to be locked down. I finially got the front ones broken loose but cant get the drums off. The back one has been much tuffer. I did get it to move some but now it is locked down and no movement at all. I cant get the drum off of this one as well. Any thoughts on how I can get the drums off? I worked on many cars with this situation but this 4X4 is a bit more difficult. Any help would be great.

The cold weather may cause your Yamaha Timberwolf to experience hard starting, several months and no use, or a stale fuel supply. Start by replacing the spark plug, if the engine still does not fire up, clean the carburetor and make sure all the hoses are connected tightly with no air leaks. If none of these strategies work, the carburetor may need to be adjusted or replaced. You may want to take it to an experienced mechanic if you are unable to get the engine started.

It might be a faulty ignition coil or CDi unit. You will need to refer to the wiring diagram and do some careful checking with your trusty multimeter or get yourself some experienced help and advice.

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.

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 -



If it's still there - your model number is here:

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:


A 98 I BOUGHT WITH THE ENGINE IN A MILK CRATE THAT I BOUGHT, REBUILT & SOLD:


A 2004 I BOUGHT, REBUILT AND SOLD:

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.

Here's the info you're looking for.

1992-1998 Yamaha Timberwolf 2WD and 4WD
Intake: 0.05 - 0.09 mm (0.002 ~ 0.004 in)
Exhaust: 0.11 - 0.15 mm (0.004 ~ 0.006 in)

consult manual this is a little involved need to follow instructions very carefully. Damage to valve can occure when done wrong.

My 1994 Yamaha Timberwolf starts but won't idle properly. Sometimes when it quits it backfires. What could the problem be?

It needs a doctor - it's a '98 two stroke - when was the last time the seals and bearings were replaced?

I think your bike has CDI ignition which means the ignition timing is fixed and cannot be changed. Are you having a problem of some sort?

This appears to be loose connector to the motherboatd from the screen.
Try gentle squeezing of the casing near the bottom of the body
This may do the trick- otheriwise it is a workshop job and frankly not worth the cost - the money would be better spent on a more uptodate camera.