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It provides just enough extra tension to prevent belt slip without forcing the engine into excessively high RPMs during cruising
You MUST up-jet your factory carburetor main jet (typically an increase of 10–15% in size) or pair this kit with an upgraded carburetor layout to prevent running dangerously lean and causing immediate structural heat seizure
Powermax 150 Icebear / Wolf Astro 150
and GY6/QMB139 scooters with 10" rims
V5B 50 Special
Top Dead Center Tool (ART.4931) ramp It provides just enough extraA very handy tool for finding top dead center on any scooter! Screws into the spark plug hole and stops the piston from travelling. Combined with a degree wheel, you can precisely locate top dead center and make your timing marks.
US$ 147.47
US$ 80.00
US$ 224.97
