ATC70 TRX70 Engine TB 108cc Stroker Big Bore kit, Race Head V2 Kit , & Mikuni VM26 Carb Kit – Honda 50cc & 70cc Various Models TBW9119

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TB 108cc Stroker Big Bore kit, Race Head V2 Kit , & Mikuni VM26 Carb Kit – Honda 50cc & 70cc Various Models

TBparts 108cc Race Head V2 Kit , 52mm Bore Kit, Mikuni VM26 Carb/Kit, & Stroker Crank. Converts the following stock models to 108cc: 1968-1979 3 speed Z50 & CT70. Also 1973-1980 ATC70

Starting with the V2 cylinder head’s larger stainless steel (21-4N) valves, better porting, roller cam, and forged aluminum roller rocker arms that allow the engine to rev quicker, farther, and make much more power than the stock setup. Add the high compression 52mm bore kit with the 51mm stroker crank that brings up the bore to 108cc and makes for a strong power band. Finish it off with Mikuni’s VM26 carb in our carb kit adding up to a professional level of performance at an affordable price for the privateer rider. These are high quality parts and require no machining to the cases or other modifications – bolt on and go! There are no installation instructions, but if you can replace your piston, you can install this kit. If you don’t have any experience working on your engine, we highly recommend having a professional technician install this kit or, at a minimum, purchasing the shop manual.

Key Features:

  • Race Head V2 – Aluminum roller rockers, 28.5mm intake valve, 23.5mm exhaust valve, 26mm intake port, 23mm exhaust port, covers and hardware included (valve, seals, and springs installed).
  • Race Camshaft and sprocket
  • 52mm Aluminum Steel Sleeve Cylinder
  • 52mm High Compression Light Weight Piston Kit (91+ octane pump fuel friendly)
  • 51mm TB Stroker crank making this kit 108cc
  • 52mm Top End Gasket, clutch cover, and center case gasket
  • Mikuni VM26 Carb Kit for proven performance, Ported Manifold, gaskets, hardware, and throttle cable
  • High Volume oil pump
  • No case boring
  • We stock all the replacement parts for this kit, no ridiculous wait times or prices for these High Performance spares.

Note: Only for use with 1968-1979 3 speed Z50 & CT70. Also 1973-1980 ATC70

Installation NoteStroker crank requires use of the 12v piston and high Volume Oil pump w/shaft. V2 head notes https://www.tbparts.com/wp-content/uploads/2022/03/V2-Cylinder-Head-Notes-Honda-PDF.pdf . VM26 carb kit requires the use of a throttle like part number TBW1051. CT70’s require TBW0133 dual feed petcock for the 2 fuel tank lines.

Kit Contents by Part Number: TBW0750, TBW0755, TBW0752, TBW1441, TBW0753, TBW0859, TBW0156, TBW0301, TBW0433, TBW0399, TBW0413, TBW0287, TBW0334, TBW0622, TBW0861, TBW0225

 

Shipping Policy

All items purchased from us will be shipped within 1-2 business days. 


 

Refund Policy

All sales are final unless you receive the product and there is a defect that was not listed in the ad or shown in the pictures. If something happens during shipment and the product does not arrive. We like to wait roughly 1-2 weeks to see if it ends up making it to its destination. If no luck, we will happily refund you the full amount. 

Additional information

Condition

New

Manufacturer Part Number

TBW9119

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Shipping Policy

All items purchased from us will be shipped within 1-2 business days. 

Refund Policy

All sales are final unless you receive the product and there is a defect that was not listed in the ad or shown in the pictures. If something happens during shipment and the product does not arrive. We like to wait roughly 1-2 weeks to see if it ends up making it to its destination. If no luck, we will happily refund you the full amount. 

Cancellation / Return / Exchange Policy

You may cancel an order before it is shipped. Please message us if you have any questions.

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