wont rev past 5500

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bnnunn1
Settled in member
Posts: 29
Joined: Tue May 24, 2011 1:35 am
Bike owned: CBR 400 nc23
Location: Northampton
wont rev past 5500

Post by bnnunn1 »

hi guys i have a cbr400 nc23 and it wont rev past 5500 i have fitted de-restricter circuit board purchased from gf racing but no luck

any ideas

thanks in advance
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BillingCBR
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Posts: 1043
Joined: Sat Oct 10, 2009 10:36 pm
Bike owned: '88 NC23, NC30, '98 R1, NC35
Re: wont rev past 5500

Post by BillingCBR »

have you got the clocks plugged in? sounds like the limp mode has cut in
'89 CBR400RRJ and '91 VFR400R NC30 project
Neosophist - The NC30 doesn't go very well when it's on fire
bnnunn1
Settled in member
Posts: 29
Joined: Tue May 24, 2011 1:35 am
Bike owned: CBR 400 nc23
Location: Northampton
Re: wont rev past 5500

Post by bnnunn1 »

i believe so what u mean plugged into what
cajun
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Joined: Sat Jun 13, 2009 4:06 am
Bike owned: MC22, NC29,NC35, 2 FZR400's
Location: New Orleans, LA USA
Re: wont rev past 5500

Post by cajun »

He means the clocks plugged into the wiring harness. What did you have to do to install it? Retrace your steps from there.
bnnunn1
Settled in member
Posts: 29
Joined: Tue May 24, 2011 1:35 am
Bike owned: CBR 400 nc23
Location: Northampton
Re: wont rev past 5500

Post by bnnunn1 »

unplug 3 pin connecter and plug de-restrictor into 3 pin block and bullet connector
amorti
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Joined: Sun May 18, 2008 4:51 pm
Bike owned: CB-1, MSX125
Location: Gibraltar
Re: wont rev past 5500

Post by amorti »

Any other electrical issues?

Your problem is definitely with the 180km/h restrictor. Feed +12v to the orange/blue wire into the CDI and it will run right.
bnnunn1
Settled in member
Posts: 29
Joined: Tue May 24, 2011 1:35 am
Bike owned: CBR 400 nc23
Location: Northampton
Re: wont rev past 5500

Post by bnnunn1 »

sorted cheers people now just to find an ignition live
amorti
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Joined: Sun May 18, 2008 4:51 pm
Bike owned: CB-1, MSX125
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Re: wont rev past 5500

Post by amorti »

bnnunn1 wrote:sorted cheers people now just to find an ignition live
Black with brown stripe, try the brakelight feed, or there will be one at/near the CDI
bnnunn1
Settled in member
Posts: 29
Joined: Tue May 24, 2011 1:35 am
Bike owned: CBR 400 nc23
Location: Northampton
Re: wont rev past 5500

Post by bnnunn1 »

all done now cheers for that bud

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