De-restricing the cdi (nc35)

[stedo]

Does the de-restriction mod on the cdi unit, the one with putting the 2k resistor in remove the rev restrictor or just the speedo resistor?

Thanks

[Cammo]

The resistor mod will remove the 180 km/h limiter.

It also allows the speedo unit to be removed/unplugged without the bike going into a limp home mode (cuts spark to 2 cylinders over 5k rpm or so). You don't need to use a resistor, just run a wire from 12v +ve to the orange/blue wire cdi wire

he hrc cdi raises the rev limit to 15.5k rpm.

[stedo]

Limp home mode, what sort of symtoms will that cause, only my track bike has a hrc unit on but went donington the other week and had to call it a day at dinner because the bike was flat as fook but would rev through the revs right through red line?

[Cammo]

The bike won't go into 'limp home' mode if you have an hrc cdi.

If you remove/unplug the clocks with a standard cdi, it cuts spark to 2 cylinders above 5.5k rpm. Check for spark from all 4 plugs over this rpm if you're not sure.

I know of a certain someone that went onto track like this, it still revs to redline but has less power.

Sounds like your bike is down a cylinder or 2, could be related to above.

Are you sure it's an hrc cdi? The letters on an hrc cdi start with 'NKA' (standard starts with MR8).

[stedo]

Its a copy unit from a local company here in uk. Got my road bike which I'm gonna change coils then plugs, only I put a new set in just before donington but have been told that plugs can be faulty from new.

Cheers Cammo

[Cammo]

Its a copy unit from a local company here in uk. Got my road bike which I'm gonna change coils then plugs, only I put a new set in just before donington but have been told that plugs can be faulty from new.

If this cdi only advances ignition and raises the rev limit then a good chance it will actually go into limp home mode.

Just run a wire from +ve to the orange/blue cdi wire (don't cut it) and it will sort it if this is the case.

[uber pikey]

I have a spare 35 cdi for sale if you get stuffed with the old one.

[stedo]

Fixed the track bike. It was a crimped on spade connector on the front coil that wasnt making a decent contact.
Something so bloody simple that costs and causes so much hassle.
Thanks for your input lads.

[Nouba]

So can someone explain how you would wire from the +ve to the orange/blue wire without cutting it? Cause i think i have the same issue. I removed the original speedo off my nc35 and left the wires hanging, i think i caused some sort of short but around that 5k range the bike flutters. I removed the speedo cause im installing a koso rx2 on it but realised how much of a mission it is so ima take it to someone to fit it. But anyways can someone explain the wire connecting?

[ludacris]

use splice connectors if you don't want to cut