1987 trx 250x issues
I am new to this forum, but not to quads. I have several others, but just picked up my first Honda last week. It is a 1987 trx 250x. It came with new tires, good plastics, g-force axle and DG exhaust (stupid loud) for $300. The former owner could not get it to run. I bought it, brought it home and with a little tinkering (adjusting the valves to spec)and cleaning, I got it to start (rough at first) and then was able to ride it. My problem now is that it won't stay running. It has great spark, new gas, I have totally cleaned the carb twice, new jets upped the main to a 130 and the pilot to 40. It is total bear to kick over. I see that the decompressor cable is attached to the head, but the bracket in front of the cam follower shaft is missing so I can't adjust the decompressor. It appears the motor may have been rebuilt not too long ago, or at least taken apart, because there are new gaskets throughout.
Now when I try to start it, it will fire briefly on the third or fourth kick, then die. There is fuel in the bowl, but when I pull the plug it appears dry. I have used two cans of carb cleaner to clean out all of the ports and crevices of the carb body. I adjusted the air/fuel mixture screw out to 2 1/2 turns to start. I can't figure out what else it could be. Could it be out of time? The T mark did not line up to the timing mark when I went to adjust the valves again. I am at a loss. Would not having the baffle on the main jet cause issues like this. When I pulled the carb apart I saw that mine was missing. Thank you in advance for any guidance you can give. I have been researching the forums to find the answers myself but am coming up without any fresh ideas. Thanks