1993 150 Yamaha Overheating at Idle

[spectron]

Have a 93 Yamaha 150 that just started to overheat at idle with the alarm going off and seems to be putting out steam from the exhaust ports right below the engine cover. Any suggestions on what this might be?

 

[erniefish]

Re: 1993 150 Yamaha Overheating at Idle

do you have stong tell tail/pee stream? if so check poppet valve, could be stuck, when was the last time for a water pump?