How To Jet Your Carburator?

[aaakirasan]

How?

in my Case this day's.. i own a YAMAHA LC135 w/ 60mm BORE kit. STOCK Head.
with 30mm Carburator 120 main Jet. but when i turn 3rd gear around 80kph.. oh know.. ( PRRRRRRROOOOOTTTTT ) i think its short... my mechanic told me to use 32mm carb..

do i need to change carburator? we already try 130 size mainjet but still the power is so bad..

any body ? suggestions please

 

[traxxas-modifier]

im using 26mm on 62mm bore kit.
so its not a reason to upgrade to 32mm if you cant jet it

your problem is just a jetting problem..
what is the stock jet size of your carb? also what specific carb model and brand?

 

[darby lc]

How?

in my Case this day's.. i own a YAMAHA LC135 w/ 60mm BORE kit. STOCK Head.
with 30mm Carburator 120 main Jet. but when i turn 3rd gear around 80kph.. oh know.. ( PRRRRRRROOOOOTTTTT ) i think its short... my mechanic told me to use 32mm carb..

do i need to change carburator? we already try 130 size mainjet but still the power is so bad..

any body ? suggestions please

no need to change the carburetor... im also using 60mm bore kit wit stock head.. but my carb using Uma 28 with 110 mainjet and 32 pilot jet.. i think better u try to maintain the mainjet and try to re-jet the pilot jet 1st... or how about your idle speed?

 

[mac kevin]

hehe

 

[sprinter777]

How?

in my Case this day's.. i own a YAMAHA LC135 w/ 60mm BORE kit. STOCK Head.
with 30mm Carburator 120 main Jet. but when i turn 3rd gear around 80kph.. oh know.. ( PRRRRRRROOOOOTTTTT ) i think its short... my mechanic told me to use 32mm carb..

do i need to change carburator? we already try 130 size mainjet but still the power is so bad..

any body ? suggestions please

better replace your mechanic first...

 

[AJM]

@traxxas_modifier what is the best jettings for stock carb ? TIA

 

[AJM]

@traxxas-modifier can u suggest jettings for stock carb stock bur

 

[sixty-thirty]

What is the jet sizes on the 25mm carb on the new lc135 model ?

 

[antukein]

PJ 15 MJ 115