KX Riders
Maintenance & Technical => KX250 / KX125 => Topic started by: kawi4life on July 12, 2010, 11:07:35 AM
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Hey, guys I recently purchased an 01 KX250 and have fallen in love with 2 strokes once again. I am running 32:1 premix ratio. And I am unsure on which engine oil/gear oil to run. I guess any 2T 10w 30/40? Correct me if im wrong.
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Kawi,
Here's a readers digest according to me.. so you get what you pay for! :lol:
I think it would actually be difficult to find a "Bad" pre-mix oil anymore. I would look for something readily available, motorcycle specific & stick with it.
Are there any bike shops nearby? Check out what they carry, Or it may be just as easy to order in from one of the shops online.
Personally I like synthetics, and something made to be used with an engine with a power valve. (Not that it has to be...)
As far as Ratio,
It seems to be half the guys run what the oil manufacturer recommends, 10% run what they like, and the remaining 10% run what the equipment manufacturer recommends.
This is by no means a scientific study, just what it appears to me... Personally I have experimented with all kinds of stuff and ratio's. Now I just run 40:1 in everything two stroke...
Bikes,chainsaws,& weed whackers.
Now I am Old and slow, and rarely even get into 5th on my kx.
If you are hard on the engine you may need to run 32:1, the guys making big power use it, but then again they do more maintenance I think than the average trailrider...
As far as trans oil, the bike specific stuff is great, I can't afford it...I've also run everything from ATF to Heavy Duty equipment trans fluid for wet clutch tractors and synthetic 10/40 and 20/50....
I ended up with Shell Rotella T 10-40 It can be found on sale as low as $11.00 a gallon and has worked great. Every once in a while I'll run ATF for a few rides and go back to the rotella.
(the ATF is High detergent and seems to get alot more of the clutch fibers and aluminium plate junk out)
O.K., That's my readers digest. If you snoop around a bit you'll see lots of bloody noses from heated debate on these subjects....
Tuck\o/
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I run this in the K5
Bel Ray HR1 synthetic @ 40:1
http://www.belray.com/consumer/product.fsp?pid=1242
All bike shops have it.
Valvoline 10W-40
All Wal-Mart's have it.
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:-D I shoulda' just put this link up
"Cam22: Good oil"
http://www.kxriders.com/forums/index.php/topic,1347.0.html
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I use YamahaLube 2R (not 2S) mixed 32:1 in all my two strokes.
I generally run ATF in the trans, but if I don't have that 10w-40 is cheap too. I don't buy bike specific trans oils, too expensive.
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Royal purple tcw3 two stroke racing oil 40:1
Royal purple syncro-max in the trans
bike parts are too expensive to cheap out on oil
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In my 00 KX 250 I run Maxima Castor 927 32:1 and in the bottom end I use cheap 20w 50
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YUM YUM, Love the smell of that Castor 927!!! I even feed that stuff to my Dixie Chopper grass cutter.
Puts a little fun in cutting the grass :-D
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When I do ride,I use Shell Rotella in the crankcase and 93 Octane with Blenzoil green label at 32:1 ,That really smells terrific, the neighbors love it!!!
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I run Opti-2 at 80/1 with av gas. The av gas is great for riding above 10,000 ft. I never heard of using ATF in the tranny, I may have to give it a try.
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Well, this isn't because I am a dealer but I have run Amsoil long before that. We run dominator @ 40:1. (beware, theres a dominator racing oil for cars and one for 2 stroke)
Internals are always clean and we alway's get great time out of our topends, @ 75 hrs or so. This is hard racing and riding. My boy is brutal.
If you choose this, you can become a preferred customer and pay cost and have it delivered to your door or find a local dealer and see if he stocks. Most don't, they will order for you and have it sent to you. Eventually if you see a need, you can become a dealer. Theres good money in it. and here's a link to a comparison. http://www.amsoil.com/products/streetbikes/WhitePaper.aspx
Click on the other oils to see how they match up.
As for the tranny, I run just plain ol' ATF type F. I could run Amsoil m/c 10/40 or supershift. But my wife is a manager of an Advance Auto parts so a discount there helps. I have been running type F since I was a kid in the 70's and 80's.
Here's a pic of my sons kx100 clutch during a rebuild. Then some of the 112 during the build.
(http://i247.photobucket.com/albums/gg137/streetcar2try/36micfrictionplate.jpg)
(http://i247.photobucket.com/albums/gg137/streetcar2try/112%20build/112build001.jpg)
(http://i247.photobucket.com/albums/gg137/streetcar2try/112%20build/112build002.jpg)
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I maintained a bike for a guy who ran nothing but ams oil. We would do his top end every twenty hours and the top end and exhauste valve was horribly sludged and carboned. Yamalube way out performed it in this aspect and yamalube is not known for being the cleanest burning stuff in the world.
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I use YamahaLube 2R (not 2S) mixed 32:1 in all my two strokes.
I generally run ATF in the trans, but if I don't have that 10w-40 is cheap too. I don't buy bike specific trans oils, too expensive.
I also run Yamalube 2R the cleanest oil I have ever ran. 32:1 in all bikes / ATF Type F has never let me down in a 2-stroke tranny.
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I maintained a bike for a guy who ran nothing but ams oil. We would do his top end every twenty hours and the top end and exhauste valve was horribly sludged and carboned. Yamalube way out performed it in this aspect and yamalube is not known for being the cleanest burning stuff in the world.
Thats really wierd. All of ours is clean. Slight carbon across the top of the piston and PV's clean. What did he mix it at? Dominator or interceptor should be no thicker than 40:1. I used to run 50 but concience got the best of me. Mike Leavitt riding Project 250 is running 100:1 with Amsoil. Granted, the motor has alot of special internal work and machining but they have not had an engine or internal part failure or premature wear yet.
But oils are a personal preference.
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I've ran Amsoil, I can't say anything bad about it nor can I say anything exceptional about it. you can run most oils at 100:1, the damage is not on the front end it's on the back end, so if your motor would last 100 hours at 40:1 then maybe at 100:1 it would only last 20 hours. On a race bike wear isn't a big issue, durability is because most mikes get torn down frequently. we put pistons in our 125 race bike monthly, it was only raced never practiced so we didn't really care about wear.
many years ago there was test of some of the 2t oils such as bel ray, maxima, golden spectro, castrol you get the idea, the worst oil tested was yamalube, and of course thats what I ran in my snowmobile, which I did notice signifcant carbon buildup. after the article no more yamalube.
Now for my .02, I think any good oil rated TCW 3 is the ticket, I believe this classification is ashless and burns very clean. I have also used redline and swear by it, it is very expensive so I don't use it for play riding but good stuff. Tranny oil Rotella T only for me.
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I was not pushing yamalube but I did use it for years. I use K2 now, One of my biggest problems with ams-oil is all the BS snake oil sales tacktics surrounding it. The guy ran his bike at 40:1.
http://www.youtube.com/watch?v=GcENY2-ZT5U
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You know the more I think about this It was ten years ago when the only place you could get ams oil was from the crazy old coot that kept it out back in his shed. They may actually sell a good product now. I'm sure they are makeing good money now that you can buy it in stores. I have always felt that ams oil products were not any better then anyone elses just that they were more honest about how long oil is good for.
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I use Klotz 40:1 Dropped down to 32:1 for a while to see if any better wear. Same wear, too much Spooge.....
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dont know if you can get rock oil in the states , used it since 88 never had any problems at all use synthetic 2t from them and gro in the gearbox , aledgedley supplied to vw golf owners for the gearbox !!
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Motul 2T oil in the mix at 42:1 on both Kawis. Heck, on my chainsaw/hedger/weedslicer as well. Great stuff, and I fill every 2T device from the same cans. Keeps the mix fresh :wink:
The clutch rides in Rotella on both the KX and the KDX. Might try that synthetic trick to clean off the AL and fiber waste from the clutches every few fills.
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i use belray h1r at 40:1. never had any problems with it. I've been riding kx 500's for 13 years now.... before h1r came out i was using belray mc1...
i also use the belray gear oil for the tranny
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I use Motorex crosspower 2T @ 44:1 . This is recommended by KTM for their 2T bikes. Seems to work great for me, My sons 04 KX250 is still on it's original piston and rings!!!!! and yes, he races it. I also like Rock Oil. I use ATF type F in the trans, changing it every other race. Shifts like butter, clutches last a long time...and no sticking or chatter.
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I too like to run the Motorex pre-mix. Works great, but as for the ATF in the trans. It is designed for just that, automatic transmissions for your car. Wont be seeing me use that. Read up on it and many others will tell you about their experience.
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Not long after getting my 500 I read on this forum about type F and gave it a try. It seemed fine until a few long high speed runs and it started blowing out the countershaft sprocket seal. It was apparently foaming and needed an escape. It might do well on the clutch but I feel the rest of the system requires more lube. I run 25w50 Amsoil motorcycle oil. After a lot of high speed running and not a drop lost, I am going to stay with an oil like that. I ran Royal Purple same weight for funnzies with same result.
I might give jet engine oil a try because I can too......
Run what works for you. We all have different styles of riding. The same oil might not be the only solution for all riding situations. When in doubt, run what the factory says.
I don't, but you could. :wink:
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...It was apparently foaming and needed an escape...Your trans case is not vented??? I rarely do flat out long high speed runs. For what and how I ride, it works, but as was said, your needs may require different. In the heat of the summer I use motorex 75W tranny oil. No mater what you use, change it often, there are no filters in there.
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...It was apparently foaming and needed an escape...Your trans case is not vented??? I rarely do flat out long high speed runs. For what and how I ride, it works, but as was said, your needs may require different. In the heat of the summer I use motorex 75W tranny oil. No mater what you use, change it often, there are no filters in there.
The vent was clear too, checked it before and after. 75w is what the engine was designed to use isn't it?
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You know the more I think about this It was ten years ago when the only place you could get ams oil was from the crazy old coot that kept it out back in his shed. They may actually sell a good product now. I'm sure they are makeing good money now that you can buy it in stores. I have always felt that ams oil products were not any better then anyone elses just that they were more honest about how long oil is good for.
Got my oil from a (crazy in a good way) old coot,,, he keeps it in a shed out back of his house. I couldn't stop thinking about this post as I completed the purchase. :-D :-D :-D