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

davecampbell · Member

05 ttr250 makes an awful clunking

TTRfan · Super Guru

It sounds like the sprag (one-way) clutch is worn. You need to check that it hasn't already damaged the starter pinion and starter gears. Starts to get expensive if these get damaged cry

Lots of information about sprags on here e.g. see http://www.ttr250.com/Sprag_replacement/TTR_sprag_replacement.htm

Good luck - hope you caught it in time.

Brian

davecampbell · Member

Thanks, I will try to do that. Hopefully I will have a flywheel puller that will work.

TTRfan · Super Guru

davecampbell wrote:
Thanks, I will try to do that. Hopefully I will have a flywheel puller that will work.

If not, use the rear axle which has the same thread - just don't cross thread it!

davecampbell · Member

I'll be good to go then. Thanks

davecampbell · Member

Thanks for the tip on using the axle as a puller. That worked slick. Unfortuneately the sprag in the parts bike was worse than the one in this bike so I switched it back to the clunky one and will have to order a new one. I did get to take it out for my first ride. I have a 9 mile woods track and I did that. If you just cruise this thing it is a couch, but it doesn't seem to like to go fast. At some point it seems to decide it is going too fast to turn and just refuses! Kind of reminds me of trying to ride an ill-tempered horse! It is what it is I suppose, I think I would like to trade it off for something a bit racier.

-- Edited by davecampbell on Thursday 24th of May 2012 01:54:39 AM

TTRfan · Super Guru

It is surprising what speed the TTR will go if you keep the revs up and make plenty of use of the gear lever!

If the engine is worn or the air filter needs cleaning, or the spark plug renewing then it isn't being given a fair chance.

Regarding the forks, I just posted this on the 325 thread:

Before going to the hassle of changing the forks, make sure that the existing ones are working as Mr Yamaha intended.

They need clean oil at the correct level - I can't think that increasing the oil level will affect the action of the forks,
check there is no play in fork bushing - get TTR on stand, grab both fork legs firmly and see if there is any back and forth movement,
check the fork seals are not leaking,
if all good so far, perhaps try adjusting the clickers at the bottom of the fork legs to see if you get an improvement - details in the owners handbook
you could also try putting a bit of air pressure in the forks to see if that helps
also try different tyre pressures in the front tyre

Worn swing arm or linkage bearings or a dodgy rear shock will also affect how the TTR steers.

At the end of the day, the TTR isn't a race bike and, if you don't need its trail bike manners and low maintenance, then maybe a race bike like a WR250F might suit you better.

davecampbell · Member

I have 3 sets of forks and I used the set that felt like it had the most dampening because I didn't realize that they had clickers. I will try that.

I think the wr250 would be a better bike for me.