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have ck all fuses, no fire in back two wires of coil, red & black out of rec have fire. no green wire w fire? whats next?:icon_ banana:
 

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I may have misunderstood you, but the green wire going to the coil is a ground. I would try testing the ignition coil first.

 

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only thing i can say is..you may have a bad stator ??..if the stator goes out..you will never get the coil to fire. stators have to circuits to them..one sends power to the reg/rec..to charge the battery and work your lights...the other side of the stator sends power to the reg/rec..coverts the voltage from ac current to dc current..it then heads for the c.d.i..then to the coil..as all this is taking place..the pick up coil which sit's inside the stator cover..picks up a signal off the flywheel..when it see's that the piston is at TDC ( TOP DEAD CENTER )..it tells the c.d.i when to fire the coil on your spark plug...then everything repeats over and over..then shazam..you got a running motor...also..you may have a bad c.d.i..these are two important parts to make a engine fire and run...test each part..and see which one is bad..then move on to the next part in the circuit.
 

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I would test the ignition coil first, but I would bet it's the CDI, since the CDI is a common part to go out on those. There is no test for the CDI, other than to replace it with a known good one.
 

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I would test the ignition coil first, but I would bet it's the CDI, since the CDI is a common part to go out on those. There is no test for the CDI, other than to replace it with a known good one.
yep..you are correct helmut...make sure you get the same year and make..very important for it to fire right.
 

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try using the kick starter and see if it fires then , dont use the electric start if it fires using the kick start , the ecm is bad for sure the 300 has a bypass circuit built into the ecm to get you home with the kick start also never test a 300 with a plug , use a tester or a screwdriver in the cap odds are youll see blazes of fire with the kickstart
 

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try using the kick starter and see if it fires then , dont use the electric start if it fires using the kick start , the ecm is bad for sure the 300 has a bypass circuit built into the ecm to get you home with the kick start also never test a 300 with a plug , use a tester or a screwdriver in the cap odds are youll see blazes of fire with the kickstart
not trying to step on any toes here..but..i've worked on alotttttt of early model 300's..and i've never seen one yet that would fire on a kick start..and not the elec start..if it is gonna fire..it will fire off a elec start or kick start..only thing your doing in the kick start phaze is bypassing the elec start feature..when you kick start it..your putting manual force into the flywheel instead of having a small motor turn it over for you..if the c.d.i is bad in any atv..it won't fire period..never has in my years of rebuilding them..but..hey..i've been known to be wrong a few times around here. lol.
 

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can't find cdi on schmatic,help
not sure where it's listed on the schmatics..but..i can tell you where it's at on the atv..up under the front fender..right below the headlight..under the plastic..should be setting inside a rubber boot.
 

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the honda 300 is the only model produced that had a bypass built into the ecm . if the starter button is used , the ecm knows it , and if the kick is used ,the ecm only knows its getting a flash signal , this idea or feature is not found on any other unit that i have the knowledge of in my 27 years with honda motors inc
 

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the honda 300 is the only model produced that had a bypass built into the ecm . if the starter button is used , the ecm knows it , and if the kick is used ,the ecm only knows its getting a flash signal , this idea or feature is not found on any other unit that i have the knowledge of in my 27 years with honda motors inc
i don't see how the c.d.i knows the difference when the flywheel is turning over..either by the elec start..or kick start....in my 14 years of working on honda 300's..i've never ran into this..buttttt..i will test this theroy soon as i got a few 300's to restore..i'll keep you updated.
 

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