FREE SHIPPING ON ALL ORDERS OVER $300
HOME        QMA.MOTORS       HONDA.MOTORS       GX200.RACE.MOTORS       160/200.RACE.PARTS       HOP.UP.KITS         STOCK.PARTS        EXHAUST           270.RACE.PARTS  ENGINE.TOOLS       TAKE.OFF.PARTS       ENGINE.ACCESSORIES       HUNTER.SHOCKS  RACE.SCALES      TANNER.PRODUCTS       GEARS       WHEELS       EiBACH.SPRINGS        SHIPPING.POLICIES 
   DESCRIPTION PART # RACER PRICE ADD TO CART
BOLT ON HOP UP KITS

Kits are 100% Complete with all parts needed (Engine not Included).  All kits require Aftermarket Exhaust and/or Header to work properly. Exhaust is not included and must be ordered separate.  Horsepower ratings are for reference only and assumed tuned exhaust. Actual HP may be different.
   GX160 HOP UP KITS - STAGE 1 thru 4
Stage 1 - GX160 Race/Open Air Filter & Adapter, 82 Jet, Rev Kit w/18 lb Springs, 8 degree Timing Key, Small Fan, .010 Head Gasket Valve Cover Gasket, Approx 7.5 hp S1HOPUP-160 $90.00
Stage 2A - GX160 Race/Open Air Filter & Adapter, GX200 Carb, Rev Kit w/18 lb Springs, 8 degree Offset Key, Small Fan, Valve Cover, .010 Gasket, & Carb Gasket(s), Approx 8.5 hp S2HOPUP-160-A $140.00
Stage 2B - GX160 Race/Open Air Filter & Adapter, Bored Carb, Rev Kit w/18 lb Springs, 8 degree Offset Key, Small Fan, Valve Cover, .010 Gasket, & Carb Gasket(s), Approx 9.0 hp S2HOPUP-160-B $190.00
Stage 3A - GX160 Race/Open Air Filter & Adapter, GX200 Carb, Rev Kit w/18 lb Springs, 8 degree Offset Key, GX200 Cam, Small Fan, Valve Cover, Case, .010 Head Gasket, & Carb Gasket(s), Approx 9.0 hp S3HOPUP-160-A $220.00
Stage 3B - GX160 Race/Open Air Filter & Adapter, Bored Carb, Rev Kit w/18 lb Springs, 8 degree Offset Key, GX200 Cam, Small Fan, Valve Cover, Case, .010 Head Gasket, & Carb Gasket(s), Approx 9.5 hp S3HOPUP-160-B $260.00
Stage 4 -160 Race/Open Air Filter & Adapter, Bored Carb, Rev Kit w/26 lb Springs, E-Spec Head, Ported & Milled, 10 to 1 Compression, 8 degree Offset Key, 252 Lift cam, Small Fan, Stud Kit, Solid Case Dowl Pins, Valve Cover, Case, .010 Head, & Carb Gasket(s), Approx 11.0 hp

Reinforced rocker arms and chrome moly pushrods recommend with 26 lb springs (order separately)

 S4HOPUP-160-A $550.00
Stage 4R -160 Same as Stage 4 but adds Billet Rod S4HOPUP-160-B $630.00
Stage 4RX -160 Same as Stage 4R but adds 390 carb w/adjustable jet - Serious Power (Custom linkage required).

280 cam Available at no extra Charge

 S4HOPUP-160-C $730.00

   GX200 HOP UP KITS - STAGE 1 thru 4
Stage 1 - GX200 Race/Open Air Filter & Adapter, 90 or 92 Jet, Rev Kit w/18 lb Springs, 8 degree Timing Key, Small Fan, Valve Cover Gasket. Approx 8.5 hp S1HOPUP-200 $79.00
Stage 2 - GX200 Race/Open Air Filter & Adapter, Bored Carb, Rev Kit w/18 lb Springs, 8 degree Offset Key, 1.2 Rockers, Small Fan, Valve Cover & Carb Gasket(s), Approx 9.5 hp (Head Gasket not Included) S2HOPUP-200 $199.00
 

Stage 3 - GX200

 Race/Open Air Filter & Adapter, Bored Carb, Rev Kit w/26 lb Springs, E-Spec Head, Ported & Milled, 10 to 1 Compression, 8 degree Offset Key, 252 Lift cam, Small Fan, Stud Kit, Solid Case Dowl Pins, Valve Cover, Case, .010 Head, & Carb Gasket(s), Approx 12 hp

Reinforced rocker arms and chrome moly pushrods recommend with 26 lb springs (order separately)

.280 cam available at no extra charge

 S3HOPUP-200 $550.00

Stage 4 - GX200

Same as Stage 3, but adds Billet Rod & Valve Cover with Nipple

 S4HOPUP-200 $630.00

Stage 4X - GX200

 Same as Stage 4 but adds 390 carb w/adjustable jet - Serious Power (Custom linkage required). S4HOPUP-200-X $730.00

    GX160 & GX200 HOP UP KITS - Stage 5 and up

 

These kits work on both GX160s and GX200s. Block must be clearanced for cam. Some Carb tuning may be needed.

GX160s will make approx 1 to 1.5 hp less than shown).
Stage 5 Your Choice or 390 carb or 22mm Mikuni (or 24 Keihen when available), 26 lb Springs, E-Spec Head, Ported & Milled, 11 to 1 Compression, 8 degree Offset Key, 280 Cam, Reinforced Rockers, Chrome Moly Pushrods, SS Valves, Small Fan, Stud Kit, Solid Case Pin, Valve Cover, Case, .010 Head, & Carb Gasket(s), Billet Rod, Approx 16 hp S5HOPUP-GAS $899.00
Stage 6 - Gas 24 or 28 mm Flat Slide Mikuni Gas, 26lb Springs, E-Spec Head, Ported & Milled, 11.5 to 1 Compression, 8 degree Offset Key, Flat Top Piston,  Billet Rod, 8 degree Offset Key, 280 or 294 Cam, Reinforced Rockers, Chrome Moly Pushrods, SS Valves & Retainers, Small Fan, Self Aligning bearings, Stud Kit, Solid Case Pin, Valve Cover, Case, .010 Head, & Carb Gasket(s), Approx 18+ hp S6HOPUP-GAS $1049.00
Stage 6 - Alky 28 mm Mikuni Alky, 26 lb Springs, E-Spec Head, Ported & Milled, 12.5 to 1 Compression, 12 degree Offset Key, Flat Top Piston, Billet Rod, Offset Key, 294 Cam, Roller Rockers, Chrome Moly Pushrods, SS Valves & Retainers, Self Aligning bearings, Stud Kit, , Solid Case Pin, Aluminum Flywheel w/fins cut, Valve Cover, Case, .010 Head, & Carb Gasket(s), Approx 20+ hp S6HOPUP-ALKY $1049.00
Stage 7 Big Valve - Gas 24 or 28 mm Flat Slide Mikuni Gas, HD Springs, E-Spec Head, Ported & Milled, 12 to1 Compression, 12 degree Offset Key, Wisco Forged or Cryo Flattop Piston (depends on availability), Billet Rod, Offset Key, 294 or 320 Cam, Roller Rockers, Chrome Moly Pushrods, SS Valves & Retainers (Oversize on Intake), Self Aligning bearings, Stud Kit, Solid Case Pin, Aluminum Flywheel w/fins cut, Valve Cover, Case, .010 Head, & Carb Gasket(s) Approx 21+ hp S7HOPUP-GAS $1,449.00
Stage 7 Big Valve - Alky 28 mm Mikuni Alky, HD Springs, E-Spec Head, Ported & Milled, 13 to1 Compression, 12 degree Offset Key, Wisco Forged or Cryo Flattop Piston (depends on availability) & Rings, Billet Rod, Offset Key, 294 or 320 Cam, Roller Rockers, Chrome Moly Pushrods, SS Valves & Retainers (Oversize on Intake), Self Aligning bearings, Stud Kit, Solid Case Pin, Aluminum Flywheel w/fins cut, Valve Cover, Case, .010 Head, & Carb Gasket(s), Approx 22+ hp S7HOPUP-GAS $1,449.00

    ADD ON OPTIONS (Must be purchased with kit)
Adjustable Jet for Stage 2, 3, and 4 motors   HUADJET $35

CALL TO ORDER
Aluminum Flywheel (Fins Cut) for Stage 1,2,3,4, & 5 HUALUMFLY $130

CALL TO ORDER
Stud Kit for Stage 1, 2, and 3 HUSTUD $35
CALL TO ORDER

  EXHAUST SYSTEMS
One Piece C-Pipe, 1" Tube, with muffler GX160/200 160CEX $69.00
Two Piece S-Pipe, 1" Tube, with muffler 160SEX $69.00
Robertson Torque Tube - Candy Cane style ( Muffler not included) RTTCCWOMUF $49.00
Muffler, RLV or Robertson for Roberston Exhaust Systems (may differ from picture) RTTMUF $29.00
Clamp on Flare RTTFLARE $15.00
Super Duty Clamp These one-piece extruded aluminum clamps are machined to fit correctly on Kart Pipes fora positive seal between pipe and muffler RTTCLAMP $7.00
Robertson Torque Tube -SUS Style  (Picture for ref only), Muffler not included RTTSUSMUF $59.00
Robertson Torque Tube - SUS kit  U -Weld, Muffler not included RTTSUSMUF $59.00
For