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LtJake
09-22-2008, 02:02 PM
My son has a 2005 TRX 250 that sat outside and wasn't run for quite some time. I brought it home and put in a new battery, fresh gas, changed the oil, and cleaned the carb. It started and ran for about 2 minutes, and now won't start anymore. It cranks, but it won't fire up.

It has good spark, and I've covered everything in the fuel system. I'm a 2 wheel/ 2 stroke guy, so this is a bit foreign to me. Can anyone tell me where to look next? I did check the compression, and that was only around 70, which according the repair manual I have isn't very good.

Any advice would be greatly appreciated.
This is my 3rd time posting this, and if it needs to be approved by a moderator before appearing on the forum, my apologies for being a pain in the neck for having the same thing up 3 times.

trx250rider
09-22-2008, 07:57 PM
i would try posting it in the 250ex forum...you probably wont get more response in the 250r section. but for my 2 cents...your compression seems very low...it may be time for some new rings...good luck

Mikeman1
09-24-2008, 10:51 AM
70? Wow,did you check the intake valve adjustment?That's sometimes the culprit.

2muchquad
09-25-2008, 03:16 PM
i would put my money on a clogged pilot jet;)