250r which oil?

[kingdeacon]

hi, wanted to change the oil on my 1983 250r. what grade oild is best? looked in the service manual which said 10w 40. which is the same as what i use in my car, is that right? what is a good make to get to?
thanks.
rob
england

[crackshot]

That is correct. 10/40 motor oil.
I use the Valvoline or Castrol 10/40.
Don't put in synthetic though or you risk clutch slippage.

[kingdeacon]

ok cool thanks for the fast replie

[Yamahondaman]

CORRECT !!!! 10-40 in the Winter and STRAIGHT 50 wt. "or 20-50" in the Summer
KENDALL or Valvoline................................ !!!!!!!!!!!!!!!!!!!! :naughty:

[willcamach]

anyone here ever use rotella oil i do and it works great and is fully synthetic and i have yet to feel any clutch slip in any machine ive run it in from my 250r to my bros 660 raptor. and best of all its fairly inexpensive.

[don250r]

am i reading this right?
ya'll put motor oil in your tranny?:crazy:
ever here of Bel-Ray gear saver?
it's made for the bottom end of these motors.:rolleyes:

[3Razors]

anyone here ever use rotella oil i do and it works great and is fully synthetic and i have yet to feel any clutch slip in any machine ive run it in from my 250r to my bros 660 raptor. and best of all its fairly inexpensive.

There are 2 different Rotella oils available. A synthetic 5w-40 and non-synthtic 15w-40. Both are very good oils, and are actually rated for motorcycle/atv wet clutch applications. I run Rotella in most of my machines with great results.

Also there is the standby ATF type F for exteme use in 2 stroke gearboxes.

[crackshot]

am i reading this right?
ya'll put motor oil in your tranny?:crazy:
ever here of Bel-Ray gear saver?
it's made for the bottom end of these motors.:rolleyes:

Yeah. Manufacture made the bike. They should know. Plus on my R, the gear oil is changed every other ride so I am not throwing money away on bel ray.

[slothminx]

Yeah. Manufacture made the bike. They should know. Plus on my R, the gear oil is changed every other ride so I am not throwing money away on bel ray.


Isnt that a bit of overkill to change the oil that fast.

[Kintore]

I change mine about every 6-8 rides. Depends if im busy, or how long the rides are.

[atcsteve]

If you use regular oil,you should change it all the time!Get some gear saver,and be safe,this stuff is great and breaks down way slower than the others!!The way I can tell its better, is if you put fresh regular oil in,ride it 1 day,then change it,it will look like water.If you do the same with gear saver,it's still like it should be!!

[3leggeddog]

well i just run honda hp.specifically made for the 250r.sounded like a good idea to me.made by honda,for my honda,hmm,they maybe on to something.

[atcsteve]

I think that would be my second choice for sure!Its been proven on the tracks,and that says alot!!

[3leggeddog]

yeap,i love it.i recently switched form maxima mtl 50 wt.this stuff is amazing.leave it to honda to make the best....again

[hrc85250r]

duh, wtf are you guys on? use 80 or 90 wt gear oil. honda makes tranny oil that is 90 wt specifically for 250r's and cr dirtbikes, they come in the liter bottles at the dealer, other than that you can just get some decent 80 or 90 wt gear oil. that is what is supposed to be run in a GEARBOX, not a whole motor, which motor oil is used for.

[Bryan Raffa]

I run 80w bel ray and love the stuff..change it about every 10 hours or after a few really good hard rides, clean oil = a happy motor!

[JackFlack]

I use 10-40, that is what Honda recomends. And If a good 10-40 can last 3,500 mi in a Gas car engine, I am sure it will last in a ATC 250r for a few rides.

Synthetics have had no ill affects on any of my Honda's Clutches.

80w-90w seems awfull thick.

[don250r]

Yeah. Manufacture made the bike. They should know. Plus on my R, the gear oil is changed every other ride so I am not throwing money away on bel ray.
Honda also says to use 20:1 on your pre-mix, do you?!

[3Razors]

20:1 performs flawlessly in my 250R's...Seems like oil is right up there in heated discussion topics such as religion or politics!! hahaha

[JackFlack]

Honda also says to use 20:1 on your pre-mix, do you?!

I think we are talking Gear Oil here???:crazy: It has allready been beat to death why know one uses 20:1 for there premix. Same reason why there is know reason not to use 10-40 in the gear box. Todays Oil is alot better then it was in the 80's.

I use 10-40 synthetic. Works just fine. I don't see how 80w-90w gear Oil would be any better.

[3Razors]

Yes the car motor oils are different from today than early years. They are extremely low friction and too "slippery" for an atv or motorcylce with a wet clutch plate system. The oil manufacturers do not take this into account when they are developing there additive packages. Synthetic car oils are the worst on clutches. There is absolutely nothing wrong with these oils except for the fact that they cause premature clutch plate wear/slipping. All of the big 4 manufacturers have service bulletins on this topic.

There are a few automotive oils that do meet the requirements of a wet clutch. Many of the diesel oils such as Delo or Rotella for example. Also some of the racing formulas of Castrol or Valvoline.
The main ingredient in Honda's HP 2 stroke gear box oil is ATF type F. Yamalube 2R is the same formula today as when it came out in the 70's.

[JackFlack]

I heard of alot people useing Type F ATF