Hop Up Kit - GX240 - GX270

Basic kit for improving the performance of GX240, 270s, and Chinese OHVs. Simple to install, you can expect significant performance increases.

Stage 1 Kit includes

Race/Open Air Filter & Adapter,
HD Valve Springs

Offset Timing Key,

Honda Jet for application,

Choke Hold Down Bracket

Optional Header/Exhaust

Optional Carbs (includes insulators)

Picture for reference only and may show optional parts. See above description for actual content.
Header not included unless specified.

Aluminum or Honda flywheel recommended. Stock flywheels are prone to failure and very DANGEROUS

Note: UT2s series Hondas (2012 & up) or later have a built in Rev Limiter in the coil and will require a new coil to exceed 4000 rpm.



Hop Up Kit - GX240 - GX270 and 8/9hp Chinese OHV, Stage 2

Step up from the Stage 1, this kit is designed to further improve the power for the GX240s and GX270s by adding a larger crab and cam.

Includes

Race/Open Air Filter & Adapter
GX390 Carb
GX390 Insulator & Studs
HD Valve Springs
Offset Timing Key
260 Lift High Performance Cam
Carb and Side Cover Gaskets
Optional Header/Exhaust
Picture for reference only and may show optional parts. See above description for actual content.
Header not included unless specified.

Aluminum or Honda flywheel recommended. Stock flywheels are prone to failure and very DANGEROUS

Note: UT2s series Hondas (2012 & up) or later have a built in Rev Limiter in the coil and will require a new coil to exceed 4000 rpm.



Hop Up Kit - GX240 - GX270 and 8/9hp Chinese OHV, Stage 3

As step up from the Stage 2, this kit is designed to improve the power for the GX240s and GX270s along with improving the durability.

Includes

Race/Open Air Filter & Adapter

Choice of Carbs
HD Valve Springs
Offset Timing Key
280 Lift Cam
Reinforced Rockers
Billet Rod
Carb and Side Cover Gaskets
Optional Header/Exhaust
Optional Aluminum Flywheel
Picture for reference only and may show optional parts. See above description for actual content.
Header not included unless specified.

Note: Use of the Choke Bracket requires use of a stock Honda (or Chinese OHV) "Air Filter to Carb Gasket". This is not included in the kit. You can use the one that came with the motor.

Aluminum or Honda flywheel recommended. Stock flywheels are prone to failure and very DANGEROUS

Note: UT2s series Hondas (2012 & up) or later have a built in Rev Limiter in the coil and will require a new coil to exceed 4000 rpm.



Hop Up Kit - GX240 - GX270 and 8/9hp Chinese OHV, Stage 4

The 4 kit starts with package similar to that of the stage 2 kit but adds a Ported and Milled Head with stainless, stainless valves, stud kit, & HD valve train components.

Includes

Race/Open Air Filter & Adapter,

Choice of Carbs

Choice of Cams

Stainless valves

Aluminum Retainers & Split Keepers

Chrome Moly Pushrods

Single or Dual Springs

8 degree Timing Key

Billet Rod

Carb, Head, & Case gaskets

Stud Kit

Optional Roller Rockers

Optional Header/Exhaust

Reinforced Rocker Arms

Picture for reference only and may show optional parts. See above description for actual content. Header/Exhaust not included unless specified.

Due to head work required, allow 1 to 2 weeks to ship

Note: Use of the Choke Bracket requires use of a stock Honda (or Chinese OHV) "Air Filter to Carb Gasket". This is not included in the kit. You can use the one that came with the motor.

Aluminum or Honda flywheel recommended. Stock flywheels are prone to failure and very DANGEROUS

Note: UT2s series Hondas (2012 & up) or later have a built in Rev Limiter in the coil and will require a new coil to exceed 4000 rpm