1985 Yamaha 40hp ESRX questions.....

[Speckiller1957]

I have recently purchased a 1985 Yamaha 40hp ERSX tiller handle version. Excellent condition, runs perfectly, however......it is a premix, not direct oil injection. Was this model a 2 stroke premix, or has the oil reservoir and oil pump been disconnected? I have looked online to compare to other 1985 Yamaha 40hp, and I see the oil tank is mounted on the port side, and see where the mounting screw holes are on my outboard. Would appreciate an answer from a Yamaha expert on this matter. Also, wish to upgrade tiller handle.....have read answers on part no. for tiller and fitting parts to upgrade to similar models, just not a 1985 series. Just want to know it applies to this model too. Thanks in advance for any reply.

[99yam40]

a 40ESRX is a 1999 model

[boscoe99]

A 40ESRX was an oil injection model. Appears that someone disconnected the system and went to premix. A shame.

Provide the complete ID for your motor. Should be on a label attached to the left hand clamp bracket.

What tiller handle, by part number, do you want to use?

[Speckiller1957]

a 40ESRX is a 1999 model

I'm sorry, you are correct. A 1985 Yamaha 40hp ESX. Was looking to buy a 1999 Yamaha ERSX at the same time as this one purchased. Appreciate your comment.

[Speckiller1957]

A 40ESRX was an oil injection model. Appears that someone disconnected the system and went to premix. A shame.

Provide the complete ID for your motor. Should be on a label attached to the left hand clamp bracket.

What tiller handle, by part number, do you want to use?

Thanks for the comment. BTW, motor is a ESX, not ERSX. Listed for part numbers as follows: Tiller Handle-6X4-42103-56-00.
Fitting Kit-6X4-42102-63-00

Also, if it is POSSIBLE to ask, I can upgrade to an electric start as well? Starter motor part number I have researched is 6H4-81800-12-00. Will need a new flywheel.....? Other parts needed......?

[99yam40]

I'm sorry, you are correct. A 1985 Yamaha 40hp ESX. Was looking to buy a 1999 Yamaha ERSX at the same time as this one purchased. Appreciate your comment.

there is no 40 ESX listed for 1985 either

[boscoe99]

How about a 40ESK?

But a 40ESK came with an electric starter motor installed. That is what the E is for.

I don't see a 6X4 tiller handle working on that model.

[Speckiller1957]

there is no 40 ESX listed for 1985 either

Well, Hoss, all I can go by is this... 1985 40ESK Yamaha Outboard Parts

[Speckiller1957]

How about a 40ESK?

But a 40ESK came with an electric starter motor installed. That is what the E is for.

I don't see a 6X4 tiller handle working on that model.

Ah, once again my error. "E" stands for electric.....so, I have a 40SX, of which I would like to make into a 40ESX. A 1986 Yamaha 40hp tiller was advised to upgrade to those part numbers. Hey, I am asking questions and appreciating responses. Hopefully, my learning curve shows improvement. Thanks again, and provide as much info as possible.

[boscoe99]

Do you have the complete engine ID? Should be on a sticker on the left hand clamp bracket. Will begin with the number 6. Looks like this

https://www.google.com/search?q=yama...iBiHxBhXcqMlM:

[99yam40]

Well, Hoss, all I can go by is this... 1985 40ESK Yamaha Outboard Parts

there is a difference in a X and a K

as Boscoe said look at the tag and report back exactly what is written on the motor ID