f4 wont fire at all

ktm851 · 10-21-2007, 10:25 PM

i have a 2000 f4 and i cant get it to fire, i bought a new cdi box for it and it didnt help.. the kill switch is on and when i turn on the key the fuel pump primes and i can crank it over all day long it just wont spark. i dont know if u can get a reading on the rectifier just by cranking it over. i dont know what to do...lol

any kind of help would be great, thanks

td955i · 10-22-2007, 10:09 PM

I ran into a similar problem on my 900rr. It was a problem with the wire running from the ignition switch to the CDI. Some kind of theft deterrent. I had to run a new wire, but without it, the CDI would not send a signal to the coils to fire.

If that wire appears to be fine, you should pull the plugs and check them. If they are dirty or wet look, replace them and try again.

ktm851 · 10-22-2007, 10:21 PM

yea im going to the napa right down the road tomarrow afternoon after i get home from school. i called them and they said they have some resistors in stock for cars..the number off of the resistor is lm7809 so im a go see if they have ne. i dont know how that would have burnt up tho. oh well but thanks for helping

austinlh · 10-28-2007, 11:53 PM

I've got a 2001 f4i and i had a similar problem right after i bough it. It ran perfectly and then just wouldnt start. apparently i fouled up the spark plugs by starting it up while it was cold outside and not letting the bike warm up. i replaced the spark plugs and it started right up

ktm851 · 10-29-2007, 8:49 PM

i found out what was wrong...the pulse generator in the right case cover... both of the wires coming out of it were grounded so im getting ready to order a new one but honda is backordered on them so i think im a order me one from yamaha of troy in ohio. thanks everyone for tryin to help!