Chain case dip stick

[drunkenrich]

Changing the oil on the chain case, 1st time for me on a nytro, newbie. On the stick it says rev/std. Or something like that, where do I want the level of the new oil? Thanks

 

[fxnytro1050]

Fill it to rev if you have reverse if you do not only fill it to std

 

[drunkenrich]

I have reverse, anyone know the amount I need

 

[fxnytro1050]

Check your owners manual. Go get the yamahalube stuff. When i got it it came in a little bottle. I had to use every bit of it and put it right on the mark. But in sure you can buy it by the quart. It might take 300 ml maby. Not 100% sure

 

[sorenson1610]

It's not much at all, like ^^ said if you buy the little bottle it's just about the entire bottle. Don't over fill it either

 

[LJ 452]

It's typically about 8oz to fill chain cases. The dipstick shows different levels as they use the same stick for the different covers and gear sets. When ever I did mine I would get two 12oz bottles of Amsoil Series 2000, that gives you three case changes. I always bought it by the case. I changed mine out quite a bit, but I liked to check the internals before trips to make sure everything as ok. While your working on the case, take the vent out and make sure it's not blocked. Some of them have flash from the molding process, it can block the vent path and create pressure within the case. I took a dremmel to mine and opened the grooves up, if you only increase the depth of the groove you won't risk any fluid escapement.

Note the location of the seals/o-rings, there are o-rings inside of the upper spacers and if your not careful, you can damage/loose them.

Do a search on replacing the cover, you may have issues lining up the reverse fork, it's easy once you've done it a time or two.

 

[Off Trail Mike]

LJ 452

You may have just solved a riddle for me. I was getting a wiff of gear oil every once and a while from my XTX since new, while my MTX never gets it. Since both get oil changed regularly, and are basically the same, I couldn't figure out why.

I going to take a close look at the breather on the xtx chaincase. I'll bet its restricting just enough so when pressure builds up inside the case it lets it through all at once....and the process repeats.

One more to add to the list.

Thanks

OTM

 

[LJ 452]

Yeah, my Apex was the same way before I "opened up" the breather. Nothing worse then the smell of gear oil when up in the U.P. in the middle of nowhere at 10:00pm, and 100 miles from the hotel. It's that distinct smell that you just know immediately what it is, I kept stoping to check the case but it was always good.

 

[drunkenrich]

can you guys post a picture of the location of the breather? do i need to take the case apart to do this?

 

[LJ 452]

The breather is actually the dipstick on the Apex, and Phazer, but on the Nytro it's the black plug just above the chain tensioner. If you remove it, you'll see a series of rings, and each ring will have one notch cut in it. The grooves are placed 180* out from each other, this prevents the fluid from shooting straight out, but allows air to zig-zag it's way out. What I did to my Apex and Nytro, was make the groove deeper, and make sure it had plenty of space for pressure to flow out. The lowest first from the chain case would be the most critical as oil buildup could occur there. It's not a huge change, and I think the newer vents are improved from the 06' Apex I had, but it's just one of those things. If you look at the vent/plug and follow the path you will understand what to do.