30 hp starter weak

[GOKART]

Bought a new 586278 starter that will not spin engine, even with plugs
out and battery connected straight to starter terminal. Any one know of
problems with this starter?
Thanks

[boats.net]

Not commen in new starters. Have you tried using a different battery and battery cables. Verify your battery cables are not corroded and have good connections. Also verify battery is fully charged and can handle a load.