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

TT-R250M wrote:
Hi Joshua and welcome to the forum!
Sounds like you picked the right bike, congratulations on that!
If you need some guidance while carrying out the repairs, here are a few links that may help-
Front brake lever- http://ttr250.activeboard.com/t53971791/can-anyone-identify-where-this-spring-is-from/
Carburettor- http://ttr250.activeboard.com/t55374798/rebuilding-a-ttr250-teikei-y30p-carburettor/
Bleeding brakes/flushing- http://ttr250.activeboard.com/t54639276/how-much-dot4-brake-fluid/
Changing oil- http://ttr250.activeboard.com/t51646992/so-how-do-you-change-the-oil/
Oil pressure- http://ttr250.activeboard.com/t54272618/oil-filter-change/
Air filter- http://ttr250.activeboard.com/t53853686/cleaning-and-oiling-your-foam-air-filter/
Chain maintenance- http://ttr250.activeboard.com/t49034857/chain-maintenance/
Chain adjustment- http://ttr250.activeboard.com/t47957145/chain-life-and-chain-adjustment/
Nice bike btw, hope you enjoy getting it out and about, I'm sure you will.
Enjoy!
Jarrah

Thanks for the tips Jarrah. I'll definitely be checking out those links.

TT-R250M · Super Guru

blue03si wrote:

Thanks for the tips Jarrah. I'll definitely be checking out those links.

No dramas, here to help if need be.

Enjoy!

Jarrah

blue03si · Member

Progress on my to do list for the week so far:

Replace bent brake lever - Ordered, arriving tomorrow
Dump old gas & clean carb - done, old gas out. Cleaned carb (one jet was completely blocked)
Replace brake fluid - tomorrow
Replace Spark Plug - Ordered, arriving tomorrow
Change Oil - Thursday if all goes well
Clean & re-oil air filter - tomorrow
Clean & re-oil chain - tomorrow

Looks like I have a busy day tomorrow. So far I had great luck with the shop manual pdf and a post on cleaning the jets on the carb. This is all new to me so I really appreciate all the members contributions. If all goes well I should be firing up the bike and warming her up for an oil change on thursday. Goal is still to hit the trail on saturday.

The only thing on the to-do list that I will be putting off for just a bit longer is replacing the seals in the brake calipers, replacing the brake lines and rebuilding the master cylinders. Owners manual says I should be doing those things because of the age by now even though it only has about 500 miles on it.

LRJ · Senior Member

Welcome, Josh. I live just over the hill from you.

blue03si · Member

LRJ wrote:
Welcome, Josh. I live just over the hill from you.

Thanks for the welcome. I'd say you live over just a little hill for sure. Where do you go to ride? So far I've only been to Metcalf.... I'm assuming you probably go to Hollister since its closer to you.

blue03si · Member

Progress on my to do list for the week so far:

Replace bent brake lever - Done
Dump old gas, fill tank with new gas - Done
Replace brake fluid - Done
Replace Spark Plug - Done
Change Oil - Sunday
Clean & re-oil air filter - Sunday
Clean & re-oil chain - Sunday

New Item

Remove and re-clean carb, more in depth this time. Bike is finally idling well, but is dying at partial throttle. When i have been able to get it going power delivery is very inconsistent with steady throttle. I really don want to take it to the dealer, but if I can't figure it out I will.

TTRfan · Super Guru

blue03si wrote:

Remove and re-clean carb, more in depth this time. Bike is finally idling well, but is dying at partial throttle. When i have been able to get it going power delivery is very inconsistent with steady throttle. I really don want to take it to the dealer, but if I can't figure it out I will.

My bet would be on a partially blocked pilot jet. They are difficult to clean properly and have been the cause of poor running on my own bikes and other owners who have posted on the subject recently.

They aren't expensive so why not just try a new one?

Brian

LRJ · Senior Member

I have ridden at Hollister some. I only go there when there is the best chance of it being pretty empty. My favorite thing to do is to go off somewhere with forest service roads or trails and camp there for a few days. Unfortunately, I haven't been able to ride much for the last 8 months or so for various reasons, but I hope that will change soon.

blue03si · Member

TTRfan wrote:
blue03si wrote:

Remove and re-clean carb, more in depth this time. Bike is finally idling well, but is dying at partial throttle. When i have been able to get it going power delivery is very inconsistent with steady throttle. I really don want to take it to the dealer, but if I can't figure it out I will.
My bet would be on a partially blocked pilot jet. They are difficult to clean properly and have been the cause of poor running on my own bikes and other owners who have posted on the subject recently.
They aren't expensive so why not just try a new one?
Brian

Thanks for the tip Brian. That was exactly it. I bought a new pilot jet from my local yamaha dealer and now she is running great.

blue03si · Member

Took the bike out to the local county OHV park for some trail riding yesterday. We had a little rain overnight so conditions were muddy in the morning, but improved as the trails dried out. I hit a mud pit coming around a corner and went down. Aside from getting dirty everything came out good and I was back up and running in a min. Bike performed great through the rest of the day. I think i need to look into the lowering link though. I can only touch the ground with my toes when its level. When its uneven its a little sketchy, dropped the bike because once in the staging area because i didn't realize i was on a little slope and thought the ground was closer than it actually was.