Carb problems

[scutertuning]

Hello ,

I have a problem with my 24 mm pwk carb.(stage6carb type pwk 24).
I want to say You few words about my setup.
Cilinder stage6 R/M 12 mm con rod
crank Stage6 85 mm
variator Stage6 5 gram rollers
Clutch stage6
water pump ssp with 40% more debit
Tassinari reed valve
The ignition is standard .
The carters are modified by me.
It's an MBK NITRO.

When I start the engine everything is ok , but when I accelerate to a quarter the rising in rpm is not as quick as I aspected .From a quarter to 3/4 is not rising up in RPM it stays there 5-7 seconds and then he goes at 14500 rpm verry quickly.

How should I adjust the carb?Or what is wrong?

 

[tiba_karotsu]

sounds like a transmission tuning problem rather than a carb tuning problem.

have you tried lighter rollers & stiffer clutch springs? start with lighter rollers, maybe 3grams then increase the weight incrementally until it feels right for you.