Correct jetting for stock GX390

Abtheman28

Member
Messages
43
Reaction score
1
Location
New Zealand
Hi guys,

Another question...

I have a stock standard Honda clone GX390. I am wanting to rejet my stock carb with the addition of a pod style airfilter and exhaust header pipe off NR racing website.

I am unsure what sized jetting I should use to achieve a reliable motor that will not require tuning after I replace the jets. Also should I replace the emulsion tube while I'm. At it?

I never intend on doing any further mods. Basically this is all I plan on doing. Mainly so the engine looks nicer from the outside with pieces added
 

Abtheman28

Member
Messages
43
Reaction score
1
Location
New Zealand
.92mm main jet is what the recommended for my stock GX390 clone motor. Pilot jet and emulsion tube to remain standard as stated by NR racing.
 
Top