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REFERENCE
INDEX
764
HYPER RACE 70
cc
BIG BORE KITS
The race version of the popular Athena 70cc big bore kit, available in
one part number. All parts are available separately for custom builds.
• Complete kit includes: Shaped, domed cylinder head, state
of the art cylinder with special porting, lighter flat top piston
assembly (all of which are designed for higher compression
and improved combustion efficiency), forged crankshaft
assembly with larger 12mm wrist pin, top end gasket set,
19mm Dell’Orto carburetor, carbon reed valve petals,
and Athena racing exhaust system, throttle cable sold
separately, replacement of clutch rollers and springs may
be needed for proper tuning
• Cylinder kits include cylinder, head, piston assembly, reeds,
and gaskets
• Piston kits include piston, rings, wrist pin, and circlips
• Carburetors have a manual choke assembly and include a
selection of main jets
• Hyper Race crankshafts have a lighter connecting rod, full
crank rounds, and special needle bearings, but will not work
with OEM type stock or standard Athena big bore pistons
due to the larger 12mm wrist pin size.
Description
WPS#
List
'98-01 ZUMA (50CC VERTICAL CYL)
70cc Hyper Race Complete Kit
68-4560 $1076.95
70cc Hyper Race Cylinder Kit
68-4561 301.95
Hyper Race Crankshaft
68-4562 197.95
Hyper Race Exhaust Pipe
68-4563 398.95
Dell'Orto 19mm Carburetor
68-4613 221.95
REPLACEMENT PARTS
Throttle Cable
70-7857 $26.95
Hyper Race Gasket Set
68-4515
9.50
70cc Piston std
68-4511A 69.95
70cc Piston .01mm
68-4511B 69.95
70cc Piston .02mm
68-4511C 69.95
Description
WPS#
List
‘02-UP ZUMA/VINO‡ (50CC HORIZONTAL CYL)*
70cc Hyper Race Complete Kit
68-4570 $1076.95
70cc Hyper Race Cylinder Kit
68-4571 300.95
Hyper Race Crankshaft
68-4572 191.95
Hyper Race Exhaust Pipe
68-4573 384.95
Dell'Orto 19mm Carburetor
68-4613 221.95
‡ Use stock reeds for Yamaha Vino
REPLACEMENT PARTS
Throttle Cable
70-7857 $26.95
Hyper Race Gasket Set
68-4516
9.50
70cc Piston std
68-4511A 69.95
70cc Piston .01mm
68-4511B 69.95
70cc Piston .02mm
68-4511C 69.95
‘98-01 Zuma
68-4560
‘02-Up Zuma/Vino
68-4570
* Requires removal of center stand for pipe clearance
ENGINE / CLUTCHES