Big bore kit. Convert 50cc to 72cc. Big valve head

Big bore kit. Convert 50cc to 72cc. Big valve head
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£139.00 £115.83 ExVAT

Product Code: 0730

Full kit takes the standard 30 mph engines to 50 mph, with big valve head and cam, ready to fit

 

Kit comes with:

  • E22 head with 23/20mm valves
  • Cylinder kit. Cast iron. 12V or now option for alloy cylinder with 49cc marked
  • Piston kit with rings 12V
  • Cam sprocket and bolts
  • Gaskets required to fit the kit.

 

We recommend using a 22mm YSN carb kit for best performance.

 

Barrel Specifications:

  • 47mm barrel
  • 62.6mm height. Base face to head face
  • 88.7mm height. Overall
  • 1655grams
  • 52.3mm Diameter. Skirt. Outside.

Due to the number of different applications this kit fits some will require the fins under the carb to be ground down to clear base of the carb..

 

Do not use standard 50cc gearing, will end up bending valves.

Product Code 0730
Condition New
Weight 5Kg
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