CDI box - Honda RC51 Forum : RC51 Motorcycle Forums
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post #1 of 22 (permalink) Old 05-10-2011, 06:44 AM Thread Starter
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CDI box

I was wanting to know is there anyone that would let me try a cdi box. I believe mine is bad but can't tell. My problem is the fuel pump wont prime And I have got no spark. I am try a another bank angle sensor today. Buri would like to try a box before I would buy one. If anyone can help let me know. Thanks
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post #2 of 22 (permalink) Old 05-10-2011, 01:24 PM
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Have you also checked your engine stop switch?
If the stop switch is bad, the engine will turn over, but the fuel pump won't prime.

Also check the black and red/orange wires at your bank angle sensor relay.
With the ignition switch on and the engine stop switch in the run position, you should be getting power through the windings for the relay.
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post #3 of 22 (permalink) Old 05-10-2011, 03:22 PM
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motor stopped running midsteam got lights turns over fine just doesn't fire
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post #4 of 22 (permalink) Old 05-10-2011, 08:06 PM Thread Starter
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Originally Posted by SubSailor View Post
Have you also checked your engine stop switch?
If the stop switch is bad, the engine will turn over, but the fuel pump won't prime.

Also check the black and red/orange wires at your bank angle sensor relay.
With the ignition switch on and the engine stop switch in the run position, you should be getting power through the windings for the relay.

If I am not getting power what's that mean?
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post #5 of 22 (permalink) Old 05-10-2011, 08:26 PM
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Originally Posted by motorbikeshawaii View Post
motor stopped running midsteam got lights turns over fine just doesn't fire
Same thing mine did. Running along about 65, then dead.We checked every connection, pulse generator, tip over switch, kickstand, all that shit. About 4 hours later one of the guys says"you know, the CDI could be shot. Sure enough, he pulled his off his 51, put it on mine, ole girl fired right up.
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post #6 of 22 (permalink) Old 05-10-2011, 08:43 PM Thread Starter
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Can I just put a jump wire on the kill switch to see if it works? Also I got bike wrecked now trying to get running could the cdi box just stop working when wrecked?
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post #7 of 22 (permalink) Old 05-10-2011, 10:02 PM
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Have you eliminated the bank angle sensor as the problem ?
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post #8 of 22 (permalink) Old 05-11-2011, 06:53 AM Thread Starter
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Yea I just got one yesterday and it didnt work. That's y I trying to figure something else out.
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post #9 of 22 (permalink) Old 05-11-2011, 08:12 AM
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When mine crapped out, fuel pump would still prime when you first turned it on, but no spark.
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post #10 of 22 (permalink) Old 05-11-2011, 09:41 AM Thread Starter
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Mine will not prime and doesn't have spark. What do I check now?
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