1978 Yamaha 9.9 outboard fourstroke

[friendship]

I have just bought one of these as a replacement for my existing outboard that died. My old one was an electric start with an alternator and the new one is a hand pull. Does anyone know if the hand pull verisons are able to charge a battery?

[Ribochet]

1978 - Yamaha - four stroke - are you sure?

[Mextli]

Yamaha did build a 4-Stroke in 1978, but as far as i recall it was a motorcycle motor.

[friendship]

The serial number is F9.9AM 6G8UL 701023. Maybe the date is wrong but it is definately a 4 stroke

[hamster]

Most yamaha hand starts can be modified to give you a 12v output for charging etc but you'll need to buy and fit the kit to convert the 12v ac it produces to 12v dc and regulate the voltage etc.

[friendship]

Thanks for that Hamster! any idea how much this is likely to cost and would a yamaha dealer have the kit for such an old engine?

[hamster]

I did get a quote years ago for a similar size engine but can't remember the price. Give a yamaha dealer a call and give them your serial number and they will be able to tell you if they can supply what you need.

If your engine is a 4 stroke I very much doubt it was made in 1978

[Ribochet]

Originally Posted by friendship

The serial number is F9.9AM 6G8UL 701023. Maybe the date is wrong but it is definately a 4 stroke

It is definitely a 4 stroker but Yamaha didn't introduce their first 4 stroke outboard until 1984