i didnt put the kit in i just replaced the old rings. yes the lobes are faceing the 2 lines.
300ex only half rev..???
i have a 1998 honda 300ex and just put in new rings. has a big bore kit in it. timing is right on and no odd noise when idle. fires right up and sounds great again but for some reason it will only rev half throttle and then revs out. all power is gone at that point. need some help i have tried going one tooth back on the timing and goin on tooth ahead and does not change,.any if would be great.
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that is correct the new rings came with the diagram from wiseco.
but the rings wouldnt stop the motor from reving. is there a rev limiter on it and is there a reset for it.
The rev limiter is built into the CDI and there is no reset.
so what is the chance the cdi is blown would it still start?
I guess it's possible, but all the ones that I've seen with a bad CDI, it wouldn't start at all.so what is the chance the cdi is blown would it still start?
ok now that I am more clear on your install.... Lets get to the carb
1. these carbs are extremely sensative to minute specs of trash, when your son I believe is what you stated flooded the engine with water unless he jumped into a pool the water was dirty
2. the first passage the water will take is through the filter then the carb sucking into the engine choking it off the second passage is through the exhaust when it dies.
3. remove the carb completely dissassemble it remove all the o-rings and hoses. Remove the pilot (air) screw spring and o-ring there then the jets.
4. Thouroughly spray the ever loving piss out of the carb and all it's orfices the take your blow gun and blow it out real good.
5 grab a tiny single strand of wire like speaker wire and clean the slowjet the orfices are to tiny for torch tip cleaners, ust those for the main jet.
6. re install everything in reverse order, turn the pilot screw in until it seats and back it out 2 1/2 turns. install it and start her up and see how it goes
1. these carbs are extremely sensative to minute specs of trash, when your son I believe is what you stated flooded the engine with water unless he jumped into a pool the water was dirty
2. the first passage the water will take is through the filter then the carb sucking into the engine choking it off the second passage is through the exhaust when it dies.
3. remove the carb completely dissassemble it remove all the o-rings and hoses. Remove the pilot (air) screw spring and o-ring there then the jets.
4. Thouroughly spray the ever loving piss out of the carb and all it's orfices the take your blow gun and blow it out real good.
5 grab a tiny single strand of wire like speaker wire and clean the slowjet the orfices are to tiny for torch tip cleaners, ust those for the main jet.
6. re install everything in reverse order, turn the pilot screw in until it seats and back it out 2 1/2 turns. install it and start her up and see how it goes
well well well thank u all for the great advice i found the problem and it was the cdi was not grounded all the way you all have beena great help.
Glad you figured out the problem.well well well thank u all for the great advice i found the problem and it was the cdi was not grounded all the way you all have beena great help.
Glad you got it fixed hang out we tend to be a fun bunch or people... lol
Yeah, hang around, don't leave now. LOL.
you all have helped it be possible for my 11 year old son drag race in the chenango county fair and the broome county fair thank you all.
Thast what we are here for bro. good luck and be careful Post a few pics of the ol' beast
Best of luck to him and have fun!!you all have helped it be possible for my 11 year old son drag race in the chenango county fair and the broome county fair thank you all.
check the cdi box and the coil and possibly air filter and fuel flow..pretty common probloms with the 300 ex espeically with it being bored out .60 over with or without a hot cam installed or make sure the carb is jetted
Justinwozniak<<<<Welcome to the forums...Free downloadable electronic manuals in the Schematics/Manuals section in here...
Welcome to the forums, Justin.
I'm having the same problem and it's really hard to start it will spins then stops and spins but it like it's sticking on something.
21 - 39 of 39 Posts
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