2 Stroke, oil mixing ratios

   / 2 Stroke, oil mixing ratios #11  
Caster oil smelled ok, but didn't it give you the runs. I know we used anything but in our BULTACOS. /forums/images/graemlins/smirk.gif
 
   / 2 Stroke, oil mixing ratios #13  
Daryl, I think you're almost as old as me, I had a 200, cause they didn't make 250s yet. /forums/images/graemlins/tongue.gif
 
   / 2 Stroke, oil mixing ratios #14  
I'm 54, and the "Bull was a 68 0r 69. My foggy memory remembers that it wasn't a Sherpa T. It was an Alpina. Sorry, another Geraritric moment.
I have had the following bikes, I haven't had one in about 8 years though I am thinking about a very custom one. So custom that even the engine is hand built. I'm not talking about assembley line hand built, I'm talking about an engine that is custom machined as well as the complete bike. I want one bad, I just don't know if I can afford it.
Anyway:
68 Triumph T-120
66 Norton P-11A scrambler
45 Harley Flathead Trike
(2) Hodaka Ace 100's
Maico 360 Square Barrell Motocrosser
Penton KTM ISDT 250
(2) Yamaha DT250 enduro's
(2) Suzuki 250 Enduro's
Kawasaki 500 triple
Kawasaki 350 triple
Yamaha 750 Seca
Harley 1200 Electra Glide dresser.
 
   / 2 Stroke, oil mixing ratios
  • Thread Starter
#15  
yikes...

with all those bikes (and a fancy schmancy tractor) I only have 1 thing to say to you...

I am not worthy /forums/images/graemlins/grin.gif
 
   / 2 Stroke, oil mixing ratios #16  
I'm 63, and my main claim to fame was I was a novice the same year as Gene (Burito) Romero. Heck, I even finished ahead of him sometimes. /forums/images/graemlins/cool.gif My last bike was a Yamaha 500 C. A gravedigger, turned right out of a left hand turn pocket, and my wife gave my bike to our oldest son. /forums/images/graemlins/laugh.gif
 
   / 2 Stroke, oil mixing ratios #17  
Here is what I do, with advice from a former moto-cross semi-pro, who built a couple engines for me.

I run oil/gas at the oil manufacturers recommendation. The oils are rated to provide optimal lubrication at a specific mixture. If you mix it lean, there is not enough lube. If you run it rich, you will get lube, along with smoke, fouling, and sometimes overheating.

Many older bikes, chain saws, ect, are rated for the oil available at thier introduction. Some old bikes and saws ran at 16:1 or 24:1. That may have been needed because of oil formulas at the time of manufacture, but not now.

I had an old boat with an 75hp outboard a while ago. The guy I got it from ran it at 24:1, like the 1960's engine spec said. It ran TERRIBLE, fouled plugs like crazy, and smoked badly. I ran it on new oil, rated for and mixed at 50:1. It ran flawlessy for me.

Also of note is how long gas is stored. Although a saw or bike may start on year old gas, it may damage the engine. From a racers standpoint, the oil starts breaking down, and is less effective after 24-48 hours. That may not matter to you, but for a top spot racer, that may make enough performance difference to decide between 1st and 2nd.

Thisa is of course, IMHO FWIW
 

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