Maintenance & Technical > KX500 Original

Amsoil 50:1

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stock500:
I have been running amsoil intercepter in my snowmobiles and my bike.  I love the oil, and Amsoil says to mix at 50:1.  I was going to do that until I talked to a couple of old timers that swear that if you do that you will fry the bottom end if you go leaner than 32:1, even if the spark plug is showing good color.  I called Amsoil and talked to one of the Techs, and he assured me that it is safe to run 50:1.  I ride from 6,500 ft to 10,000 ft here in western Wyoming so I need to be leaner because when I get on top of the mountains my bike has a hard time getting air.    Any info would be great.

bigbellybob:
premix has came a long way sens the old days. back in the day bikes had a sticker telling you to mix at 20:1 that's crazy now days. a lot of manufacturers now suggest 40:1. a lot of Amsoil lovers use less oil than the 50:1 your worrying about.

Good:
I've been running the "Saber" at 90+ to 1 and if anything, it seems to keep it cooler.

Hillclimb#42:
50:1 is fine, man. Amsoil is the good oil too. You could easily be leaner on mixture with that oil. Old timers vs. Amsoil reps seems clear enough to me. Actually I think rich=heat. I'd be more worried about coming down a mountain and leaning it out by coasting too long and using the transmission to slow the pace. You're good to go with amsoil

stock500:
 I'd be more worried about coming down a mountain and leaning it out by coasting too long and using the transmission to slow the pace. You're good to go with amsoil
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I am so cheap that I turn my engine off and coast down the mountian so I save gas. 

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