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!
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!
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.
1986 Honda ATC 350X Stock
1985 Honda ATC 250R Stock
1985 Honda ATC 250SX Project Need Parts
1983 Honda ATC 110 Rare Blue Model
1982 Honda ATC 110 Front Brakes
1983 Honda ATC 70 with Lights
1979 Honda ATC 70
http://autos.groups.yahoo.com/group/HondaATC/join
Honda also says to use 20:1 on your pre-mix, do you?!Originally Posted by crackshot
84 250R (sold)
85 250R 38mm Keihin PJ,Rad valve(w/spacer),
CR250 head gasket,all DG exhaust ,
13/37 gearing w/ 22-11x9 wooly booger type treads,
head re-chambering and +6 swinger by Ronnie,
stock jug and bottom end,
112 octane race gas w/ klotz R50 @ 32:1
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
Remove all the warning label and let nature take its course
I think we are talking Gear Oil here???Originally Posted by don250r
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.
1986 Honda ATC 350X Stock
1985 Honda ATC 250R Stock
1985 Honda ATC 250SX Project Need Parts
1983 Honda ATC 110 Rare Blue Model
1982 Honda ATC 110 Front Brakes
1983 Honda ATC 70 with Lights
1979 Honda ATC 70
http://autos.groups.yahoo.com/group/HondaATC/join
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.
Last edited by 3Razors; 08-25-2006 at 04:03 AM.
Remove all the warning label and let nature take its course
I heard of alot people useing Type F ATF
1986 Honda ATC 350X Stock
1985 Honda ATC 250R Stock
1985 Honda ATC 250SX Project Need Parts
1983 Honda ATC 110 Rare Blue Model
1982 Honda ATC 110 Front Brakes
1983 Honda ATC 70 with Lights
1979 Honda ATC 70
http://autos.groups.yahoo.com/group/HondaATC/join