Wont tick over properly

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geoff916
Settled in member
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Posts: 15
Joined: Sat Aug 26, 2017 9:26 am
Bike owned: CBR 1100 XX, CBR 400 RR CBR
Location: Stoke on Trent England
Wont tick over properly

Post by geoff916 » Sat Aug 26, 2017 1:25 pm

Hi
New member here. (just got my nc 23) :grin: :grin:
My problem is.....It will tick over but rises from 1000 to 3000 then falls to 1000 the back to 3000 continuously !
I have cleaned the carbs, jets etc BUT Im confused re the jet sizes ? according to the engine number (NC23E 1035719) it is the "J" model BUT the jets in the carbs are 35's ? not 40's. these I believe were the jets from the Nc29 CARBS, i DONT KNOW IF THEY ARE THE ORIGINAL CARBS.

ARE THE PILOT SCREWS TWO AND A QUARTER OR TWO AND A HALF TURNS OUT :?: ?

Any help much appreciated.

Thanx

dunkenb
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Joined: Wed Jun 03, 2009 9:39 pm
Bike owned: Cbr400rr nc29 type8 NSR250
Location: West Midlands
Re: Wont tick over properly

Post by dunkenb » Sat Aug 26, 2017 1:41 pm

You're right with the jet sizes j is 40 , kis 35. Haynes says 2.5 turns out for pilots!

Perhaps the carbs need balancing?

geoff916
Settled in member
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Posts: 15
Joined: Sat Aug 26, 2017 9:26 am
Bike owned: CBR 1100 XX, CBR 400 RR CBR
Location: Stoke on Trent England
Re: Wont tick over properly

Post by geoff916 » Sat Aug 26, 2017 2:36 pm

Thanks for that. Ill try 2.5 turns rather than 2.25 and Ill balance the carbs
I have a two gauge set so I think its 1+ 2 then 3+4 then 2+3 should do it.
cant wait till shes all done. will be more fun round the twisties than my 186bhp Blackbird I think lol :P :P

geoff916
Settled in member
Reactions:
Posts: 15
Joined: Sat Aug 26, 2017 9:26 am
Bike owned: CBR 1100 XX, CBR 400 RR CBR
Location: Stoke on Trent England
Re: Wont tick over properly

Post by geoff916 » Tue Aug 29, 2017 9:32 pm

So after having the carbs off AGAIN AND AGAIN !!
It now ticks over at 1000 rpm, steady as a rock ! carbs balanced, 2.5 turns out on the mixture.
its actually smoother than my blackbird !! (injection)


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