I have a 2002 Yamaha YZ 125 and the clutch is engaged and wont disengage, it is stuck in third gear so I can't even start it. I was wondering if there was some easy way around it? I have taken off the clutch side of the gears and of course it is freed up, when I put the pressure plate back on it gets engaged again, I just bought it off someone that KINDA knows stuff about these bikes and I have been a mechanic for vehicles for about 3-4 years so I know the basics with these bikes... Please let me know if anyone can help...Thanks, Vinny
I would be more concerned with the stuck gear than the clutch, but we will start with the clutch.
The push cam may be bent or deformed and the push shaft may be bent. Assuming the ball bearing is in place, the cam and rod are all that can really go wrong. The rod slides out of the left center case. You will need to loosen the springs to get the left side cover back in place. Roll the rod on a flat surface to see if it is bent. I fear a bent shift fork is causing the gearbox to be stuck in third. Fix the clutch and then post a comment to get back to me.
Posted on Jul 26, 2009
i have a yz 125 2001 model what spark plug should i put in it and what heat ratiung etc? thanks for any help. Ryan Dundas
I have a dennis kirk book, the correct spark plug is a --BR9ES--(NGK)
i always used SAE 10w-30 oil on all my dirtbikes,
no transmission fluid
for the chain you should move the back tire back until the chain is at a snug tension
Posted on Apr 24, 2009
what is the fork oil capacity for a Yamaha 2002 YZ 125?
Service manual says oil capacity is 19.4 oz. per leg which is 573.726 ml per leg. Be sure that you have drained all the old fork oil out first.
Posted on Jul 11, 2014
our 125 grizzly will start when choked but dies when given gas. My kid ran it out of fuel last year and it did the same thing. The main jet was plugged with gelled gas. This year it acts the same but the main jet was okay. I cleaned up the carb anyway and put it back together. Minor improvement. I have put in a new plug and do not have the air cleaner hooked up right now and it still will not run. I also put on a clear gas filter and can see that there is fuel going to the carb. Any Thoughts?
check that reed valves not sticking and check the pilot jet its prob. half blocked. have to stick a very thin wire through it.
Posted on Aug 12, 2009
ive searched for a week now for a free download of the service or owners manual for my 99' yz 125. Its no were to be found so any help would be great
www.denniskirk.com-1-800-969-7504orwww.j&pcycle.com-1-800-318-6847. they should have it.
Posted on Mar 26, 2009
how do i set the timeing on a yz400f or 426
Hi Leewy....Ok...Turn the crankshaft counterclockwise until the " I " mark on the rotor is aligned with the stationary pointer on the crancase cover.Fit the timing chain onto both camshaft sprockets and install the camshafts on the cylinder head.The camshafts should be installed onto the cylinder head so that the exaust cam sprocket punch mark " E " and the intake cam sprocket punch mark " I " align with the surface of the cylinder head,both marks facing out of course towards their prospective ports.thats about it Lee.Please leave some feedback if this has helped in anyway. from tilleydog at Moto Headquarters.
Posted on Jul 17, 2009
i have a yz 125 2001 model what oil should i have in the clutxch and transmition?
The clutch and gearbox share the same oil. The oil for the motor is 10w40. Stick with the major brands; Pennzoil, Quaker State, Mobil, Yamalube or Shell.
Posted on Apr 19, 2009
hi hope someone can help, i have a 1997 yz 125 with no spark not sure wether it could be the cdi unit or staror needs re winding i have a multimeter and was wondering if any one knew how to test the stator and cdi unit thanks
G'day i am a . YZ 125 j ...lets see now! You could perform these tests yourself.Check your plug CAP,if in doubt replace it with a new one. Take the below ohm figures and see if they match up. Pulse coil: white/blue and white/red= 310 ohms. low speed coil: Green/white and Black/red= 900 ohms. high speed coil: Green/blue and black= 55 ohms. hope this has helped in some way to helping you solve your problem.If it has please leave feed back.Ride hard , see ya,Tabbycat
Posted on Jul 24, 2009
My 00 yz125 was dripping coolant from the weep hole so i went out and bought the pump gasket and seal but i am stuck at the impeller wheel - do i need to take the entire casing off to get the impeller wheel off??? tried putting the bike in gear and holding the tire with no success...
Thank you
The two seals in the diagram below are separated by the casing they fit into. The impeller is threaded to screw onto the impeller shaft. I think you already knew that by your "holding the tire" note. The center casing does not get split. The right casing does remove then a wrench is used on the shaft as the impeller unscrews counter clockwise. It is risky to "Lock the wheel" because the gear on the impeller is very thin and can break.
A “very helpful” rating on this answer? Thanks!
Posted on Jul 01, 2009
my 94 yamaha warrior doesn't seem to start its getting spark and gas to the engine what could be wrong it was running fine when it just died
a yamaha warrior isnt a 2 stroke. they make a street bike nad a four stroke quad. Check your carburator. check your spark plug and check your stator. it may be very minor considering it was running fine then just went out. no noise or anything. you would have heard something if you broke something internal.
Posted on May 21, 2009
694 questions posted
Usually answered in minutes!
147 Questions
12 Questions
8 Questions
7 Questions
1 Questions