[PX166] What is the best jetting? VIDEO incl
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2017 PX125
Joined: 06 Jan 2017
Posts: 26
Location: Tokyo, Japan
Thu May 09, 2019 4:03 pm quote
I have played around with my PX a lot lately...add on a few mods like SIP alloy rims, SIP caliper, michelin tires, CDI, bore-up kit... then down to the jetting part where I'm kind of lost.
Basically, I've made a short vid and it sums up what I want to ask you fellows. Any feedbacks is greatly appreciated.

Last edited by NickyPX125 on Fri May 10, 2019 7:13 pm; edited 1 time in total
Jet Eye Master
PX221 Malossi, O tuned PX200 and some motorbikes
Joined: 14 Jun 2017
Posts: 1981
Location: London UK
Fri May 10, 2019 7:26 am quote
Nice scooter. Deserves to be set up better. Jetting these carbs is a big subject. It's never going to be so fast but should manage 100km/h with 2 people. Which for Japan is the max legal limit anywhere and I believe they are very strict.

Ignoring how the kit was put on (port timing/squish clearance etc.) and the ignition timing (probably 18 degress IT mark, or whatever the new Chinese mark is). Get the jetting right and it will be good enough.

The main jet has 3 parts. What are the numbers now?

The pilot at 52/140 will be too big (and sounds like it)
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