1:11 Two Smoker Oil Ratios! 32:1 or 50:1 Shop talk on ratios & oil types 4 R motocross dirt bikes.

I'm only six minutes in and this has made more sense than any oil ratio video I've ever seen. Thanks for this.

Been doing this racing/ riding for 50 years and haven’t listened to anyone explain this in simpler terms ever. Helping others to keep the costs down when a lot don’t want to listen is very kind Thank you 🙏

Great video man, thanks for the clear explanation! It makes sense about the excess oil in the crank. I switched to 20% castor oil and have to go up 1 or 2 jet sizes to keep my current temps. (Fully built Air cooled, 2stroke scooters).

When a YZ guy talks I listen.

Best information / explanation I’ve seen on YouTube Solid knowledge Thanks

Excellent points there and very true. I bought a 2002 rm125. It ran great but the power band just seemed weak. I do not know what kind of oil the previous owner used..but I think klotz btw it smelled. Anyway, I played with adjusting the power valves, jetting, etc. Nothing helped. Finally, I turned my attention to the exhaust. The carbon was so thick in the expansion chamber that my pinky wouldn't fit in it. I burnt the pipe out and removed all the leftover carbon. Now, the bike stands up through the gears like it should. Btw....I owe a shout-out to the guys on thumper talk for helping me figure it out. I have always run klotz super techniplate and still do. Because of your explanation I may switch to a synthetic like honda hp2.

Thanks for explaining why there was a huge blue cloud when I’d take off in the morning when riding the F7 (Kawasaki)… It was oil injection, and I was running “Torco T2 injection” oil…

pure castor oil and ATF 50/50 @ 25:1 in mx bikes and chainsaws for 30 years- never a problem

So much good info in this video. I’ve been riding 2 strokes since the early 90s and figured I knew all I needed to know about premix and jetting. Much of what you covered I didn’t know at all. In fact, I have always ran 40:1 thinking it was the optimal amount for us semi-fast guys. Now I know otherwise. Thanks for sharing your knowledge and experience.

I always think of mix ratios like this: oil is cheap, engines are not. I’d much rather have a bit of smoke than a dead engine.

Ive been out of dirt bike riding for quite a while (late 1970s) and finally coming back. No competition, just trail riding, medium speeds with the occasional full throttle blast. I have an MK5 (1971-1972), 125 Bultaco pursang and a 1979 Husky 250cr with a 390cr engine in it while the original engine gets reassembled. Your vids have helped bring me back up to speed with jetting and premix. Way back when, I was a fan of Golden Spectro and have begun my dirt adventures with a fresh bottle. You have certainly given me much to think about! Thanks!

Gordon Jennings would agree, less isn't necessarily more.

Really great video. Nice of you to share the knowledge. I could geek out on this all day. All part of the joys of riding dirt bikes!

Just stumbled onto your channel a few weeks ago and I’ll have to say I’ve learned a shit Ton about 2 strokes I thought myself versed but dang well done the knowledge and explanations are really on point thank you I am gonna watch every single video.

I use 30:1 on my yz 250 for hard enduro/technical trails. smokes like a steamboat but never had any problem with the plugs or engine.

Really enjoyed your video and by the way that’s a damn good looking dog you have couldn’t tell exactly what breed but beautiful dog

really clear and straightforward explanation. Subbed! Too many channels with people yammering on and on without saying anything.

Best turorial on YT for 2strokes. Awsome!!

Thanks for the information. I have been chasing info on this subject for a week and you have explained it very well. Thanks buddy

This is like a whole semester worth of knowledge in one video. Thank you i'm a big fan now! It is gospel to me!!