Hotcams
Hotcams Camshaft Yamaha 4128-2
Improved peak torque and upper 1/2 RPM horsepower.Same low RPM torque as the stock cam.Stock valve springs are OK.Supplied with decompression mechanism.
Stage 2: single-cam motor. More top-end than Stage 1. Requires Hot Cams spring kit part number SKYFM660S2. Uses stock auto-decompression mechanism.
Hotcams
Improved peak torque and upper 1/2 RPM horsepower.Same low RPM torque as the stock cam.Stock valve springs are OK.Supplied with decompression mechanism.
Hotcams
Improved peak torque and upper 1/2 RPM horsepower.Same low RPM torque as the stock cam.Stock valve springs are OK.Supplied with decompression mechanism.
Hotcams
Improved peak torque and upper 1/2 RPM horsepower.Same low RPM torque as the stock cam.Stock valve springs are OK.Supplied with decompression mechanism.
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