Honda VFR 750 RC 24 - Cdi units not working

Hi need help as my Honda Vfr 750 Rc24 bike is stale from last few days as its Engine not starting firing .. Tried checking spark at sparkplugs but no fire at all. Checked the Cdi units both small n big one problem seems be in them. Help need as m from India n m not able to find Cdi unit in local market .. Can u help with replacement Cdi of any other model that can be fitted on to it.. As of now i installed 4 cdi units from local make to each cylinder n coil .. Problem is engine starts n fires but on high Rpm it starts misfiring n wont accelerate beyond 2000 rpms .. Mismatch of firing order ..
Pls help me n if anyone here have spare Cdi units both small n big one for sale..

Thanks in Advance

vicky
vickylotey@yahoo.com

 

Could it be you have bad cam position pickup units? Have you tested those per the manual?

 

i had disconnected the cam pickup coil unit as my bike runs on two main pickup coils only .. Cam position pickup unit one is not working from last 2-3 years .. Engine been running on main pickup units without any trouble but few days back due to some short circuit cdi unit stopped functioning..now need to fit some other replacement cdi unit..

 

Excessive voltage from a bad r/r is often the cause of CDI failure, so check on that. Does it smell burned ?

Maybe a confusion in terms ?? That bike has only one cdi box, 2 or 3 pulse generators, and 4 ignition coils.

If one or two cylinders were not firing, naturally it would have little power.

The no-spark problem could be related to bad contacts in the RUN/OFF switch so the CDI gets no voltage or to a bad ground.

 

Any replacement CDI that matches it ... which may be fitted on it ..


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Replacement CDI won't work if it doesn't get +12 volts. TEST that yours is getting power first.

 

Checked each n every thing all fine only problem is CDI faulty.. No spark coming out .. Input 12 volts working but no output frm CDI unit. Rest of all bike is stock.. Need to know will Cdi Unit of 94 year VFR fit perfect or do i need to check for RC 24 only..


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But you also said you cam position sensors are not working either, if those are not good any CDI you purchase is worthless.

 

Specifically RC 24 only. If bike has cam pulser you need '86 CDI.

Find one on US or UK Ebay.