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

Vincey19 · Member

Front Suspension Problem

TT-R250M · Super Guru

First of all check steering stem bearings, wheel bearings and that your caliper or anything else is not loose.

Jarrah

texasT · Senior Member

Vincey,
I may be wrong, but I think the air valve is for letting the air out, not putting any in.
... I call it "burping" the forks.
greg

TT-R250M · Super Guru

texasT wrote:
Vincey,
I may be wrong, but I think the air valve is for letting the air out, not putting any in.
... I call it "burping" the forks.
greg

Putting 5 Psi in the forks is optional. Some say it's best not to because it puts too much pressure on the seals.

I don't need air in mine, they work wonderfully with 10W oil in them.

Jarrah

TTRfan · Super Guru

Vincey19 wrote:
When I am riding off road and the front wheel leaves the ground there is a load metallic clunk noise from the front forks.

It does sound like the fork bushing may be worn.

Get the TTR up on the stand with the front wheel in the air. Grab the lower fork legs and move back and forth. If there is play and/or clunking then it is almost certainly your fork bushes that are worn and they are worth replacing. Just as well do the seals whilst the forks are apart.

Brian

Vincey19 · Member

Thanks for the advice guys.

Will start with checking for play and go from there.

Will let you know results.

Steve

martin555 · Veteran Member

what "simple" solution you recommend to fill in, after that, to be able to measure, the air pressure in front fork?

thx.

(its hard to reach for me..)