Massimo buck 250 loud knock on start up

[Jason Dickman]

New to the forum and hope someone can help. My buck 250 gold cart is about 2 years old and recently it has this very loud cringe worthy knocking sound. Only when engaging the starter and also seems like the starter gets suck in the process a little. Once it fires up it sounds fine. I called Massimo about 30 times but no one answers any of their phone lines :( Any one have any idea what this loud knock noise is being caused by during the engaging of the starter? I uploaded a short YouTube video so you can hear it as well >> 

Thank you in advance for any help in diagnosing the issue.

[TapBoss]

Could be a weak battery, bad connection or bad starter?  I'd test the battery and check all connections first.

[Joe Breaux]

typical of Massimo tech line.... NO ANSWER, NO CALL BACK... They are truly the worst company in the business .. And forget finding a shop to do warranty work............. I wish someone had told me before I bought one.   that sounds like a starter issue  to me . loose bolt, damaged gear  teeth, misaligned ..   check bolts, Remove the starter and check the teeth on drive gear 

[Bill Hughes]

Your battery sounds very weak. Try starting with a booster or a new battery to check.  If you wind up getting a new battery, get a AGM/SLA maintenance free battery.