Beddo
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But more likely.......stupid Beddo.
Firstly, sorry for the long post, but I feel I need to explain everything I've tried.
OK, so I've got a TRX 3.3 which I have run about 3/4 gallon through of 25% (1st Monster Juice but now Byrons). The motor used to start no problem, warm or cold, and whilst I have had some tuning issues in the past, since I got these sorted it has been running like a gem.
Then the main bearing gave up, so that was changed for a new one. The sleeve and piston were checked and are in excellent condition. Compression and pinch seem good. I took the opportunity to completely seal the engine and it was at this point I noticed that one of the holes in the carb body where the larger blank plug fits had stripped its threads. I ordered a new carb body and at the weekend built and sealed the motor again.
Now I can't for the life of me get the thing to fire up.
I'm running a roto start and it just turns over, and over again, never really looking like its gonna fire. I've tried priming by plugging the exhaust and watching fuel go into the carb. I've gently blown into the pressure pipe and watched fuel go into the pipe. The only time the motor looks like it may start is if I drop a small amount of fuel into the mouth of the carb, then it will chug a bit, like its about to start, then continue just turning over.
I've done a pressure test on the fuel lines by plugging the fuel line at the end that goes into the carb, and blowing into the pressure line off the exhaust, so I'm confident that the fuel system is air tight, as is the engine.
I've tried new plugs, new batteries in the glow starter and in the roto start (I've even used a 7 cell pack to try get a bit more spped from the roto start)
I'm at my wits end as I simply dont know what to try next. I'm considering doing a home pinch job on the liner, but I'm sure that its OK since the compression feels pretty good.
I wondered if there wasn't enough fuel getting into the cylinder, the top of the piston never seems to be very wet when I take the plug out. Also if I try to start without the filter on (not something I would normally do obviously) there seems to be plenty of fuel coming back out of the mouth of the carb, especially if I plug the exhaust port, almost as if the fuel isnt getting into the motor?
Any ideas or suggested would be greatly appreciated. I've ordered an )S .18TZ, but it wont be here for a couple of weeks and I'm lost without my Maxx
Firstly, sorry for the long post, but I feel I need to explain everything I've tried.
OK, so I've got a TRX 3.3 which I have run about 3/4 gallon through of 25% (1st Monster Juice but now Byrons). The motor used to start no problem, warm or cold, and whilst I have had some tuning issues in the past, since I got these sorted it has been running like a gem.
Then the main bearing gave up, so that was changed for a new one. The sleeve and piston were checked and are in excellent condition. Compression and pinch seem good. I took the opportunity to completely seal the engine and it was at this point I noticed that one of the holes in the carb body where the larger blank plug fits had stripped its threads. I ordered a new carb body and at the weekend built and sealed the motor again.
Now I can't for the life of me get the thing to fire up.
I'm running a roto start and it just turns over, and over again, never really looking like its gonna fire. I've tried priming by plugging the exhaust and watching fuel go into the carb. I've gently blown into the pressure pipe and watched fuel go into the pipe. The only time the motor looks like it may start is if I drop a small amount of fuel into the mouth of the carb, then it will chug a bit, like its about to start, then continue just turning over.
I've done a pressure test on the fuel lines by plugging the fuel line at the end that goes into the carb, and blowing into the pressure line off the exhaust, so I'm confident that the fuel system is air tight, as is the engine.
I've tried new plugs, new batteries in the glow starter and in the roto start (I've even used a 7 cell pack to try get a bit more spped from the roto start)
I'm at my wits end as I simply dont know what to try next. I'm considering doing a home pinch job on the liner, but I'm sure that its OK since the compression feels pretty good.
I wondered if there wasn't enough fuel getting into the cylinder, the top of the piston never seems to be very wet when I take the plug out. Also if I try to start without the filter on (not something I would normally do obviously) there seems to be plenty of fuel coming back out of the mouth of the carb, especially if I plug the exhaust port, almost as if the fuel isnt getting into the motor?
Any ideas or suggested would be greatly appreciated. I've ordered an )S .18TZ, but it wont be here for a couple of weeks and I'm lost without my Maxx