Smoking motor

[<BT>]

Hi. F115 4-S with 15 hours. Ran it hard for 2 hours then noticed when starting up after a drift that the lower unit was billowing a steady stream of grey smoke. Any suggestions on where to start diagnosing? Also looking for a good tech in San Diego to help out.

Regards,

BT

[<boats.net>]

With only 15 hours it is probably still under warranty and you can take it to a Yamaha dealer to get checked out. Check the oil level, is it overfull

[<BT>]

Thanks. Oil looks good and is at pefect level.
Fired her up last night and the grey billowing is actually from the exhaust. Bad gas?