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Engine > Cylinder Kits & Pistons >
70CC BOLT-ON BIG BORE CYLINDER KITS
Features
- Kits come complete with aluminum cylinder (with a nickel carbide-plated 47.66mm bore), cylinder head, piston assembly (piston, rings, wrist pin and circlips), carbon reeds and all required top-end gaskets
- Optional high-performance crankshafts (sold separately) replace OEM and are manufactured to Athena’s highest standards
- Replacement top-end gasket kits and piston kits also available separately
Images
#0931-0077
MALAGUTI
| Part # | Description | Retail |
|---|---|---|
| 0931-0077 | FITS MODEL: F10 (air cooled) - Big Bore Kit | $184.95 |
| 0921-0020 | FITS MODEL: F10 (air cooled) - Crankshaft | $150.95 |
| 0934-0639 | FITS MODEL: F10 (air cooled) - Replacement Top-End Gasket Kit | $6.95 |
| 0931-0078 | FITS MODEL: F15/Italjet Dragster (liquid cooled) - Big Bore Kit | $234.95 |
| 0921-0020 | FITS MODEL: F15/Italjet Dragster (liquid cooled) - Crankshaft | $150.95 |
| 0934-0640 | FITS MODEL: F15/Italjet Dragster (liquid cooled) - Replacement Top-End Gasket Kit | $10.95 |
YAMAHA
| Part # | Description | Retail |
|---|---|---|
| 0931-0076 | FITS MODEL: BW/Zuma1 98-01 (vertical engine) - Big Bore Kit | $184.95 |
| 0921-0019 | FITS MODEL: BW/Zuma1 98-01 (vertical engine) - Crankshaft | $150.95 |
| 0934-0638 | FITS MODEL: BW/Zuma1 98-01 (vertical engine) - Replacement Top-End Gasket Kit | $6.95 |
| 0931-0077 | FITS MODEL: Vino 50/Jog/Zuma2 02-05 (horizontal engine) - Big Bore Kit | $184.95 |
| 0921-0020 | FITS MODEL: Vino 50/Jog/Zuma2 02-05 (horizontal engine) - Crankshaft | $150.95 |
| 0934-0639 | FITS MODEL: Vino 50/Jog/Zuma2 02-05 (horizontal engine) - Replacement Top-End Gasket Kit | $6.95 |
Replacement Piston Kits
| Part # | Description | Retail |
|---|---|---|
| 0910-0581 | SIZE: Std. | $44.95 |
| 0910-0582 | SIZE: + .01mm | $44.95 |
| 0910-0583 | SIZE: + .02mm | $44.95 |
Descriptions and notes
It is recommended that Athena’s 17.5mm Scooter carburetor be used with these bolt-on big bore kits. See Fuel Systems section.
This item appears on page 1305 of the Street Catalog