Yamaha 50HP 3 cylinder specs

clanton

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Jul 9, 2001
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I need the carbuator float settings, and timing specs.


Yamaha 50 HP 3 cylinder. Model 50TLR, ser 6H5K L 1011176.




Thanks
 

Inducted

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Re: Yamaha 50HP 3 cylinder specs

Float height 15.0 +- 1.0 mm Full retarded position ATDC 7 Full advanced position BTDC 25
 

clanton

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Re: Yamaha 50HP 3 cylinder specs

THANK YOU VERY MUCH.


Clanton
 

99yam40

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Re: Yamaha 50HP 3 cylinder specs

Looks like it is still the same as the 1999 model, I was not sure on the newer motors so I did not reply earlier:facepalm:
 

clanton

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Re: Yamaha 50HP 3 cylinder specs

Inducted, 99yam40 you have any problems finding top dead center this engine. I think I have now, but what a bear. I have 3 different piston stops, one with a dial indicater. Timimg all over the place, replacing the timer box on side of engine. You can beat me over my head for not buying a manual.
 

99yam40

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Re: Yamaha 50HP 3 cylinder specs

Not sure what you mean by "I have 3 different piston stops, one with a dial indicater. Timimg all over the place ".
Dial indicator on piston top or even a small screwdriver and compare to marks on flywheel should show TDC on all cylinders just to prove key is OK.

My C40TLRX CDI had the wiper start to go bad and could not get the idle timing to go to 7 ATDC it wanted to run at 14 ATDC and idled very badly. WOT timing was fine. Finally replaced the CDI and things are fine.
You do realize the idle timing starts out advanced and then retards after warm up.
 

clanton

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4,876
Re: Yamaha 50HP 3 cylinder specs

The manual shipped today. Have top dead center now. Timing pointer was broke off, and flywheel key laying on top of block.

Thanks for the help.
 
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