A forum for owners of Yamaha TTR250 trail and enduro bikes!

wobbly · Veteran Member

Rear axle problem

Cubber · Super Guru

Welcome and hello Wobbly. wink

To remove a rear wheel is comparatively easy - remove the cotter pin and loosen the castellated nut on the right hand end of the axle.

Before completely removing the nut put a stout piece of wood over the end and wallop it with a hammer. This should loosen the axle in the wheel. furious

Withdraw the axle to sufficiently loosen the snail cams then you can push the whole wheel in the swingarm forwards. This enables the chain to be lifted off the sprocket.

Withdraw the axle completely now and the wheel should drop out, with the brake caliper that can be carefully removed to extract the wheel, disc and sprocket.

If you are unable to remove the axle you can take off the swingarm end keepers (each side) and then you can remove the wheel rearwards completely. confuse

A releasing fluid, like WD40, can be sprayed liberally around the nut, axle and fork ends to assist in subsequent dismantling.

This CLICKY THINGY describes the procedure when installing new bearings - the method of wheel removal is the same.

Enjoy biggrin

Martyn

TTRfan · Super Guru

Good advice from Martyn biggrin

I have had a couple of difficult ones where the block of wood treatment didn't do the business as the axle was so well rusted into the wheel bearings and spacers. In those cases I had to resort to using a large metal punch and block hammer confuse

Much easier if, as Martyn suggests, you get enough movement to slide the wheel assembly out the back of the swing arm. You can then brace the hub more easily.

If a TTR doesn't get used a lot or is often put away damp then it is worth taking the time making sure that the front and rear axles can be removed esaily. Take them out, clean them up, regrease and put back. It is best to discover troubles in the garage than get apuncture out on the lanes and not be able to deal with it.

Similarly, the main swing arm bolt can be a pig to remove if it rusts in. It is worth making sure that yours moves. You don't necessarily have to remove it. Just tap it back far enough to rotate it half a turn or so and tighten it up again.

Brian

wobbly · Veteran Member

Well I finally removed the axle seems it just needed a harder swing of the hammer and not the careful swings I was doing, run the wheel down to Watling tyres where they fitted a new tube (thanks watling tyres) came back and gave the axle a good clean and grease checked the bearings all fine fitted wheel and job done wighin a couple of hours. Obviously the axle has not been removed for a while and shall now get onto the front axle to make sure thats clean and lubed. Thanks for the fast advice men and look forward to the next problem.

verticaltwin · Member

Had to put a new alternator in the wife's mini-van first... so I sprayed some PB Blaster to get them soaking while I worked on the van. Used a big hammer and a piece of aluminum over the tip of the axle... the wood wasn't getting it done. Finally got the axle to come out with the spacers and both drive side bearings on it. Hopefully I can get the spacers and bearings off the axle ok. Sprayed them again and waiting a bit... The right side bearing and spacer came out ok.

Still have work to do... and now need rear wheel bearings and seals. Maybe new spacers too. Thanks for the tips!!

Geez... I hope the front wheel is easier!

-- Edited by verticaltwin on Sunday 3rd of February 2013 12:22:35 AM

verticaltwin · Member

I'm having terrible trouble with the rear axle too... Looks like it's never been off. have taken the rear wheel off by removing the caliper and disc, but that axle is stuck bigtime. Is it the spacers that get corroded onto the axle?

barra8 · Guru

The bearing are stainless so they don't usually corrode. The spacers definately do as when they are new they just pop in & out easily by hand. Once old they are hard to remove & a bent screwdriver is needed (in my case) to drift them out. Also it can be hard as you say to get the axle out.

I like to replace my spacers each time i replace bearings as they look nice & do'nt get stuck or wear your axle.

Try putting the nut back on flush or a nut that fits & bashing it as the wood will be taking some force out of your swinging hammer.

Usually the bearings have grease on them but in your case may have a film of corrosion that may not be helping too.

If all else fails heat the bearings & spacers up until you can free them.

...........................................

Jarrah.

Marshall · Veteran Member

I'm having a real hard time taking out the axle,the right side does not seem to move. The axle does move but not come out, do I need to remove the breaks? I hit the crap out of it I just don't understand. Please help.

TT-R250M · Super Guru

First of all, which axle, front or back? I'm guessing back?

No you do not need to remove the brakes.

Did you try the above info? If so you're in for some fun wink

Marshall · Veteran Member

Tried everything and nothing is working, it spins when I hit the left thing just won't move when I hit the other side.

TT-R250M · Super Guru

You're going to have to be more specific.

What spins when you hit it?

What have you tried? details of the removal procedure?

Marshall · Veteran Member

I'm on my phone about to give up, I think I broke more then fix. I'll give more details later.

Marshall · Veteran Member

OK got it done, only thing is I have yet to test it. I'm to mad and wipedout so it will have to wait. Thanks for wanting to help I'll update everyone later.