Okay, so I had been looking for a TRX70 for my daughter for a wh ile now, all of them seem to be beat to hell and the sellers want an arm and a leg. I was able to pick this one up a few hours away for a good deal. When I got it it started right up ran good but I didnt take it for a spin (fisrt mistake) Anyway it smoked then and I knew it needed a ring job but it was in such good shape I figured no big deal.
I purchased a whole new top end rebuild kit that included a new cylinder, piston, rings, gastkets etc. Stayed with the stock 70cc size. When I took it apart I marked the timingchain gear, chain and cam to make sure it went back together correctly. I did notice one of the valves was a little "burnt, but honestly cant remember if it was the exhaust or intake. So I start putting it back together and follow the manuals instructions to a "T", flywheel on TDC, (saw that the piston was actually there as well, but the timng chain marks I had marked were off by one tooth when I put it together. The "o" on the gear was aligned with the "v" in the head... I triple and quadruple checked everything, so I figured someone had been in there before and messed up the timing chain/gear placement... hence the burnt valve. Mind you the valve didnt look that bad. I'm only bringin this up to help "set the scene for what was and wasnt done, i dont think any of this is the issue at hand, but i could be wrong.
Okay... so I go to start it, starts on first pull idles great, revs fine in neutral, no more smoke, life is good!!........ but when i put it in gear and give it gas to go it bogs down and cuts out.
bought a rebuild kit for the carb....... same thing.
bought a new carb..... same thing....
any ideas???? If my daughter gets on it it seems to do okay, but I can tell it still wants to cut out especially if she really gives it some gas or go up any kind of incline. starting from a stop is a bit of a chore too. Now mind you she's 48lbs and I'm about 220, but this thing should still haul me around with no problem. right?!?!?!
So its really pi$$ing me of I cant figure this out.... put a new plug in... checked spark... nice fat blue flame.... just dont know what I'm missing. I have done lots of searches on this and seems like most people with the same problems were able to run theirs fine with the choke on, but not with it off..... if i put my choke on it cuts out as i would think it should.
like I said, right now it has new top end rebuild (not valves), new plug, new carb.... starts first pull with little effort, idles perfect, revs all the way up in neutral with no hesitation of sputtering, but when placed in gear and throttle applied to ride it bogs down and cuts out.
PLEASE HELP!!!! I just want to ride with my daughter!!!!! LOL
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