Oil mixture help! (yes I used search

R

Rockchuck

Guest
Hey guys, I had someone build my bike a few days ago and he told me that it was running 4:1. I thought it seemed to low but I'm really new to this and have seen many different opinions. I have been breaking it in by only going 15-20 at max, and only for 20 mins max(this is the correct procedure right?). So I'm wondering what ratio I should run for the second tank. I have heard so many different things that now I'm confused. Thanks!
 
Edit : sorry guys he put 4 oz per gallon(32:1 right?).he also said there was no need to change the ratio after the break in. Any other tips for breaking it in so I can get the best speeds?
 
normal ratio is 20:1 for regular oil.
It's 25:1 for semi-synthetic oil (in case you want less exhaust smoke)
 
note: advice about oil ratios differs between countries as gas differs also between countries - 32:1 is common in US when using gas without a high alcohol content
 
I just did an internet search on the topic of recommendations for use of ethanol containing gas and couldn't find a single mention of a different oil/gas ratio as a recommendation.
 
neither gas nor alcohol have any lubricity of their own, so you don't have anything to worry about there. I stick with 50:1 using leaded 100 octane fuel
 
I have my old manuals for converting 40s and 50s motorcycles to alcohol - MUCH less energy content in alcohol, so jet sizes are to be increased by a %150 flow rate - no info about oil dissolving in alcohol and being thereby lost in the combustion - so outside US, I'd go by local standards.
 
I honestly can't tell if you're serious right now. ;)
avgas is about 30 cents more expensive per gallon than 90 octane unleaded ethanol-free, and with the fuel economy you get on one of these things it's not hurting my wallet too much.
 
avgas is about 30 cents more expensive per gallon than 90 octane unleaded ethanol-free, and with the fuel economy you get on one of these things it's not hurting my wallet too much.

You're usuing actual leaded aviation fuel? Nice, what oil are you running 50:1 at? What's your compression and what spark plug are you useing,and cdi if you don't mind me asking.
 
Back
Top