This kit fits the UM V2S250R and Hyosung GT 250. It increases performance, improves throttle response and sound. Low end torque is remarkable! The kit does not require carb removal, it includes:

1 ) Complete step by step instructions with photos,
2 ) Air box modification template,
3, 4 ) Drill bit and instructions for modifying carb slide.
5, 6, 7, 8 ) Carb pilot jets, main jets, needle shims, carb screw removal tool, and.
9 ) Main jet restrictor removal tool.

This jet kit works with stock pipes that have been modified per instructions and with aftermarket exhaust.

This kit fits the UM V2C250T and Hyosung GV 250. It increases performance, improves throttle response and sound. Low end torque is remarkable! The kit does not require carb removal, it includes:

1 ) Complete step by step instructions with photos,
2 ) Air box modification template,
3, 4 ) Drill bit and instructions for modifying carb slide.
5, 6, 7, 8 ) Carb pilot jets, main jets, needle shims, carb screw removal tool, and.
9 ) Main jet restrictor removal tool.

This jet kit works with stock pipes that have been modified per enclosed instructions.

$58
Jet Kit for
Stock V2C250T
and Stock GV 250

More power for your bike without a muffler change. My performance power package #3 adds performance without a muffler change.

You get complete step by step instructions with pic's for changing both the pilot jets and the main jets. Both main jets and pilot jets included in my performance power package.

You get a drill bit for enlarging a hole in your carb slide for quicker throttle response.(pic's and instructions included.) Don't let this mod scare you! You will have your slide out of the carb in order to change the needle jet setting and it will take only a few minutes to enlarge a small hole that is already in your slide.

Also included are instructions for modifying your air box for better performance.

$58
Jet Kit for Stock
V2C650S
V2C650T
GV 650


Comes With
AIS BLOCKOFF PLUG
Eliminates Backfiring

Power package #2 is for a bike with modified exhaust.

You get complete step by step instructions with pic's for changing both the pilot jets and the main jets. Both main jets and pilot jets included in my performance power package.

You get a drill bit for enlarging a hole in your carb slide for quicker throttle response.(pic's and instructions included.) You will have your slide out of the carb in order to change the needle jet setting and it will take only a few minutes to enlarge a small hole that is already in your slide.

Also included are instructions for modifying your air box for better performance.

$58
Jet Kit for
MODIFIED
V2C650S
V2C650T
GV 650


Comes With
AIS BLOCKOFF PLUG
Eliminates Backfiring

Special design jet kit for the United Motors V2S650R and Hyosung GT 650. Works with the factory exhaust system.

Complete step by step instructions included with pictures. Package includes main jets, pilot jets, carb slide modification for faster throttle response, tools for opening carb body, instructions for air box air flow modification. More air in - more power out.

Instructions on how to modify the stock pipes are included. This is the best way to improve performance without an exhaust system change!

$58
Jet Kit for
Stock V2S650R
Stock GT 650


Comes With
AIS BLOCKOFF PLUG
Eliminates Backfiring

Special design jet kit and performance package for the Hyosung GT 650 equipped with after market exhaust system. NOTE: Performance package not for use with stock pipes.

Complete step by step instructions included with pictures. Package includes main jets, pilot jets, carb slide modification for faster throttle response, tools for opening carb body, instructions for air box air flow modification. More air in - more power out.

If it were me I'd just let the other 650 owners wonder why you are so much faster than they are. Shhh! Don't give away the secret.

$58
Jet Kit for
MODIFIED
V2S650R
GT 650


Comes With
AIS BLOCKOFF PLUG
Eliminates Backfiring