Gear oil change.

[JSP]

Trying to find out how much gear oil my Yam 115 holds. And any advice for changing the oil would be most appreciated.
If I understand what I've read on the net; Undo top and bottom plugs, drain and then fill by squeezing the bottle into the bottom plug until it comes out of the top one.
That sound right? If not please tell me.

[Downhilldai]

Before you drain it, check the level by removing the top plug when the leg is vertical. If it is low, then the lower unit may have a problem. As the condition of the l/u is not known to you, I'd suggest you drain the oil into a clean container and check for any swarf or similar debris, which may also indicate a problem inside.

A litre or so of oil should be enough and you may need new washers on the plugs

[JSP]

That sounds like a good thing to do, something I hadn't thought about. Cheers mate

[Nos4r2]

The Yams have a magnetic drain plug so you should be able to get an idea of the condition of the box from that.

Don't bother trying to refill it with tubes of gear oil-you'll lose half of it while changing tubes over.Using a pump to fill is far easier and will cost less in the long run.

There's no 'may'- you will need new fibre washers. They are pence and a big false economy to re-use.

[Locozodiac]

Originally Posted by JSP

Trying to find out how much gear oil my Yam 115 holds. And any advice for changing the oil would be most appreciated.
If I understand what I've read on the net; Undo top and bottom plugs, drain and then fill by squeezing the bottle into the bottom plug until it comes out of the top one.
That sound right? If not please tell me.

Before adding new gear oil, you can squeeze 1/3 bottle new oil into upper plug to clean interior of gearcase, with hand spin prop, to clean well gears. Drain all remaining oil out, take your time. Refill as usual.

Happy Boating

[JSP]

Originally Posted by Nos4r2

The Yams have a magnetic drain plug so you should be able to get an idea of the condition of the box from that.

Don't bother trying to refill it with tubes of gear oil-you'll lose half of it while changing tubes over.Using a pump to fill is far easier and will cost less in the long run.

There's no 'may'- you will need new fibre washers. They are pence and a big false economy to re-use.

Cheers Nos, what kind of pump? Have used oil drainer, suction pumps before. Must be a small hand one?
Any ideas where to buy the washer from?

[JSP]

Originally Posted by Locozodiac

Before adding new gear oil, you can squeeze 1/3 bottle new oil into upper plug to clean interior of gearcase, with hand spin prop, to clean well gears. Drain all remaining oil out, take your time. Refill as usual.

Happy Boating

Thanks,
I've got 1ltr of Yamaha gear oil SAE90, will have to get some more in.

[Bigmuz7]

make sure your old stuff isnt milky ..

[Nos4r2]

Originally Posted by JSP

Cheers Nos, what kind of pump? Have used oil drainer, suction pumps before. Must be a small hand one?
Any ideas where to buy the washer from?

The fibre washers should be part number 90430-08020-00. Any Yam dealer will have loads in stock.

I use a quicksilver gear oil pump with an 'adapter' as the Yam threads are different but this would be better:-

http://www.boats-parts.co.uk/index.p...roducts_id=837

[JSP]

Originally Posted by Nos4r2

The fibre washers should be part number 90430-08020-00. Any Yam dealer will have loads in stock.

I use a quicksilver gear oil pump with an 'adapter' as the Yam threads are different but this would be better:-

http://www.boats-parts.co.uk/index.p...roducts_id=837

Cheers Nos, I may be a tight arse but £25 seems a bit steep for a little pump.