August 10, 200917 yr Hi folks, Playing with a 250 barn project. It actually starts and runs. However, it doesn't idle. Seems like I need to screw in the idle adjustment but it's already in all the way. Any thoughts?
August 10, 200917 yr Author OK, cleaned it once, but I'll do it again. I even used my ultrasonic cleaner, but I've seen that happen before. Thanks
August 11, 200917 yr sounds like you have cleaned carb well.take out air screw i use wd40 with red pipe on to make sure it comes out in 2 places.through pilot jet and small hole back of slide. also points set at 12 thou.also if it smokes may be piston rings sticking.or air leak on inlet manifold.
August 11, 200917 yr if it is a Honda TL 250 4 stroke 1975/76, then it is important that the ignition is set properly: distance of the breaker 3-4mm, check timing with a stroboscopic flash, check, that the mechanical advancer works. Mine had something in the exhaust, be sure, exhaust can breath freely Do you mean idling at low revs or it does not turn in high revs? Good luck from a Swiss Patrick
August 11, 200917 yr Author Hi Pat, It revs fine, it just won't sit and idle and needs constant blipping of the throttle. It's close but no cigar. I'll pull the carb again. I need to pull the 125 carb and clean it anyhow. I need to play with the Beta carb too. Maybe I'll have one big carb playing day!
April 6, 201016 yr Author Spring is here and I got the 250 to start and run fine. It was a pin hole in the float, replaced the float and problem solved.
April 18, 201016 yr Hy HondaTrials I fitted an Oko 24mm carb with power jet (deactivated) today, bought at ebay from Taiwan. Fits the inlet rubber, but to the airbox I found an old Montesa rubber (49mm instead of 42). After some trial and errors, the engine works quite well now. Slow jet 38 (like Keihin original) and main 112. I had to hang the needle at top clip (leanest) position. It starts easily and pulls at low revs. On the first street test, it is quite good, but not reving totally high, but pulls quite strongly now til 4/5 gas. I started with a 115, then 120, then 110, now 112 main jet. Trial test to follow soon. Does your TL rev up like a cross engine? or is there kind of a limit ? Regards Patrick Edited April 18, 201016 yr by Trial Pat
May 7, 201016 yr My TL250 has stock carb, retarded ignition timing and will continue to rev until the valves start to float!
May 7, 201016 yr Yea it is...got it back from Bob last summer...I've ridden it in three events so far...sweet... M
May 12, 201016 yr Brian ; The TMI looks better in person , It even keeps a smile on Murray's face non-stop when he's on it ! Glenn
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