Step up from
the Stage 1, this kit is designed to further improve the power for the GX240s
and GX270s by adding a larger carb 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.
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, or can purchase one at
http://www.nrracing.com/product-p/16220-za0-702.htm
Picture for reference only and may show optional parts. See above
description for actual content. Header not included unless specified.
Filter should be sprayed with K&N type oil, especially
in dirt applications. Oil not included click here
Billet Aluminum flywheel recommended. Stock flywheels,
esp "Clone" 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. The UT2 coils (4 wire) can only be used with stock
flywheels. If using a Billet Flywheel, you must run a UT1 style coil (single
wire).
Chinese Engines usually have UT1 style coils already. However some Lifans and
420s have a digital ignition and will need a Honda UT1 coil to run the billet
flywheel.
If ordering for a 301, be aware some engines have large Cam Journals
(.6357), most 301s have standard cam journals (same as GX270s). If you have a
301, we recommend you measure your cam journals before ordering this. THIS KIT WILL NOT FIT ENGINES WITH LARGE JOURNALS
