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Discussion Starter · #1 ·
Hello guys, so I own a Hornet 250 CB250Ft but the previous owner installed a CBR250RR engine, It's MC14E-105 (I think CBR250RR(N) MC22?).

So my chassis/cdi/wiring is from a hornet 250, with 16500 rpm rev limit,I bought an MC22 CDI, which has the same 16 pin connection, I tried it and I can rev until 19000 but after 4K RPM it's misfiring, like I run out of fuel or something.
I got a video but on neutral, if you can listen to the sound, it's a lot worse when in gear, bike won't move and sounds like crap.

Any ideas? Might be the wiring in the ignition coils wrong with the new CDI?


 

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Might wrong generation cbr250 CDI. There was MC17, MC19, MC22, all with MC14E engines. The later MC22 needs wire from speedo to CDI for speed detection

Doesn't matter, engine drops off tremendously after 16K-rpms anyway. Just use the Hornet CDI
 

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Discussion Starter · #3 ·
Might wrong generation cbr250 CDI. There was MC17, MC19, MC22, all with MC14E engines. The later MC22 needs wire from speedo to CDI for speed detection

Doesn't matter, engine drops off tremendously after 16K-rpms anyway. Just use the Hornet CDI
The place I bought it from second-hand says it's from MC22 Gull Arm, and it reads
KAZ 825H
So maybe that's my issue? Is there any way to bypass it? What happens if there's no cable for the speed detection? :D

I know that, but it's a bit cooler to run up to 19000, my rev limit is 16500, and I think the MC22 has 5 more PS?
 
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