250-500cc 2T oil

Im a YamaLube R2 guy, 32:1 2002 YZ250s

I think it is all about riding style and conditions. In the NW Coast and Cascade Mountains for example there are cool temperatures, long stretches of tight single track corners, hills that are steep but technical and not long enough between switchbacks to generate much heat and long switch backed downhills. Just hard to get the temp up until just before fire season things warm up to the 90s + F. but then the woods are usually shut down shortly.

Anybody tried Castrol rs tts it has a low flash point of only 163 f..

When Castrol TTS was available to me locally it was my oil of choice. My engines always looked great when I took them apart and very little smoke.

Ya I tried it in my Scorpa SY250 trials at 80:1. Minimal smoke and no spooge. Supposed to protectwell. Didn't stink either. Little Spendy tho.

yep castrol tts here too, cheap compared to some $78 for 4L($60 on special) motorex/motul is like $120+ for 4L! . smells good, dyed blue for ID in fuel, full syn, available at local autoparts stores, no spooge at 32:1 either. did just get 3.78L(gallon?) of amsoil dominator to try as a lot of you guys reckon its good gear.

I used TTS until I blew up my 125 running it on a gravel road at the Idaho ISDE in 2011, some thought that the oil was diluted from water in the fuel at the local gas station. Same gas blew up my nephews RM65 when I got home. Oops.

After that I switched to Klotz R50 and ran it for 100 hours until I had some plug fouling issues, like 12 plugs in 100 miles. It ended up being low compression, fixed with a new ring. I had switched to Amsoil dominator to try to rule out fuel/oil.

I stuck with Amsoil for the last 100 hours or so because it is half the price of Klotz and seems to work great. 239.4 hours and the 125 is still running strong on the stock bottom end.

Later,

I wondered and never heard what your plug fowling issue was back then.

I have become a believer in Maxima K2 oil mixed at 40:1 but also like Maxima Super M. I think K2 is a better product. Burns clean and smells good. Not like Maxima 927 but close. Maxma Super M does not smell like castor or even ester.

Have to agree on the TTS, use to use it 20 years ago - still use it now at 40:1, runs crisp and smells good too.

Yep and what is available in your area might play a part ...

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It seems my 08 WR250 does well at 40:1 with several different brands including the 2 shown here that are easiest to find for me. I just load up on a few Ls when I find what I like. That red-jug is not their top stuff and maybe drools a little more than their top 2t oil I tried before... That Plus 2T burns pretty well and does not smoke alot. Its what I use now as often as possible. There should be a short racing vid of my bike coming out of the gate and you can see the exhaust pretty well from the camera angle.

When we change the oil to gas ratio our jetting changes a little. Heat it up on the new mix and adjust your balance screw first. The balance should be between 1 to 2 turns for the pilot jet to still be ok.

We've been running Castrol Power 1 racing 2 stroke in my son's 2T race bike (YZ)
Only a little smoke on cold start, then nothing while running. Engine wear has been fantastic.
It is expensive here (Aus) but cheaper than eng parts....

Tiger seman if I can get it , otherwise Ammsoil Dominator or Interceptor always with VP110. Be careful mixing ethanol fuel with most synthetics. Ethanol is bad hoodoo on a 2stroke but if you're forced to use it a castor based oil is better.

View: https://www.youtube.com/watch?v=pOsB2nsls28

Sad thing is there are riders like that, no really.. We call those guys Bro's...

Yeh but its still survival of the fittest right?
I like a bit of slack in my chain!
Not many people can rail like ronnie mac an i dont think anyone smart enough to find his videos is going to follow his set up apart from the big spanner to keep people off his lawn.

i use valvoline:


https://www.toni-clark.com/english/motoren/vm170/synpower2t.htm

My mechanic has recommended me that oil. until now 5*!

This thread was surprisingly a good read. Most oil threads are a waste of time,
, this however was a nice surprise.

I run 927 at 28-1 in my bikes. Always worked well for me, im a hard on the throttle wringing its neck, 215 lb rider on a 125 in sandy mx tracks though. May not work for slower less on the throttle type riding,

With that said, with how much fuel i burn through i am tempted to switch to a synthetic like amsoil dominator and run it more like 40-1 or even 50-1 to save some loot. 5.50 a gallon fuel plus the 28 dollar a bottle premix sure does add up!

I wanted to do a long term test on one of my KDX's. I had a 1997 220 that is street legal. I only use 91 octane gas and Wal Mart super tech at 50:1
here is a link to see what things looked like after 7300 miles.
http://www.thumpertalk.com/topic/1081726-walmart-supertech-outboard-2stroke-oil/

927 is a synthetic, but you can't beat the price of dominator. I switched from 927 and motul 800 to dominator because I can get it for under $10/ litre.