Big bore kits are unrivalled for increasing power and torque on your scooter engine. This Italian made item adds a lot of horsepower and torque but can be a durable performer when jetted right and if keeping max RPM about the same as stock.
Suits Yamaha 2 strokes 50cc with horizontal engines including: CV50 Jog Jog (all 2 stroke horizontal engine) Axis 50 (all 2 stroke) Vino (all 2 stroke)
and clones too including PGO Ligero, PM-X, Roughhouse FYM Urban (not R4) CPI Hussar pre '03 Adly GTA-50, Silver Fox, Gatecrasher and RT50 plus most Chinese horizontal engined 2 stroke imports.
Increases capacity to 70cc for more torque and power. Comes with:
big port cylinder matched head alloy piston (10mm gudgeon pin) rings, piston pin and clips gaskets
(Sample photo shown)
This kit must be fitted and carb tuned by a technician or skilled person.
Big bore kits are unrivalled for increasing power and torque on your scooter engine.
Suits Yamaha 2 strokes 50cc with horizontal engines including:
CV50 Jog
Jog (all 2 stroke horizontal engine)
Axis 50 (all 2 stroke)
Vino (all 2 stroke)
and clones too including PGO Ligero, Roughhouse, PMX Naked. FYM Urban (not R4), CPI Hussar pre '03, Adly GTA-50,Silver Fox, Gatecrasher and RT50 plus most Chinese horizontal engined 2 stroke imports. Increases capacity to 70cc for more torque and power. Comes with big port cylinder, alloy piston (10mm gudgeon pin), new pin and clips, gaskets. Uses standard head. (Sample photo shown)
Review 6 Oct 2006: "The 68cc kit works well" B.D., Christchurch
Y1003
This kit must be fitted and carb tuned by a technician or skilled person. Piston seizure is a symptom of poor carb tuning and claims regarding these kinds of problems will not be accepted. This increases engine size so that your bike may not be legally registered as a moped.
Stage 6 Sport Pro Mk II 70cc kit YamahaNZ$379.00