yamaha outboard

[chriskeet]

Hi, can anybody help identify a problem- just purchased a 2004 avon adventurer RIB with a 1998 or 1996 yamaha 30 with autolube( the serial number is 6J8 L 461498).
The engine has an audible alarm for low oil / overheating. The problem is that the alarm goes off after the engine has been running for about 5 minutes-with the water muffs on, not actually in the water. The oil tank is full so I guess it can't be that. The water comes out of the tell tale ok ( but would it be forced out of that anyway by the hose). The seller tells me that a new impellar was fitted recently!. When the engine was switched off, steam exited from the tell tale. Any suggestions? Also any names of good reliable outboard engineers in east sussex?

Thanks

 

[Mr Googler]

I would say you are overheating.

Is the tell tail water very hot prior to the alarm going off. It should be cool/warmish.

Never a good idea to run on muffs to long unless you have loads of water pressure. I assume the engine has a few years on it so salt deposits can easily restrict flow. Does it do it in the water.

Are you revving above tick over when on muffs.

 

[Double arvor]

sorry dont know much about the problen, but tate and crew have just sorted my problem,,
with my yam 100 and seemed fair, they are based at eastbourne, hope this helps

 

[volvopaul]

Hi, can anybody help identify a problem- just purchased a 2004 avon adventurer RIB with a 1998 or 1996 yamaha 30 with autolube( the serial number is 6J8 L 461498).
The engine has an audible alarm for low oil / overheating. The problem is that the alarm goes off after the engine has been running for about 5 minutes-with the water muffs on, not actually in the water. The oil tank is full so I guess it can't be that. The water comes out of the tell tale ok ( but would it be forced out of that anyway by the hose). The seller tells me that a new impellar was fitted recently!. When the engine was switched off, steam exited from the tell tale. Any suggestions? Also any names of good reliable outboard engineers in east sussex?

Thanks

Either the thermostat is shut, or it may have been removed alltogether causing the water to pass through the block quickly not dispersing the heat at the correct rate, I have also seen the blocks totally blocked with salt corrosion and water just exiting the tell tale hole.