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newb gas ratio question


Discussion at Motorized Bicycle Engine Kit Forum in the Motorized Bicycle General Discussion forum. I have an 80CC that I purchased preassembled used just ran through my first tank of gas and the origional ...
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Old 10-27-2009, 09:32 PM
Motorized Bicycle Newbie
 
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Default newb gas ratio question

I have an 80CC that I purchased preassembled used just ran through my first tank of gas and the origional owner had forgotten the fuel to oil ratio, he said he thinks it is 32-1 is this likely correct?
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Old 10-27-2009, 10:51 PM
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Default Re: newb gas ratio question

Is the engine broken in yet? What kind of oil are you mixing? 32:1 is a slight bit lean on oil but if the oil is high quality you'll be good. Some of the better synthetics can be mixed at 50:1 and even leaner. 100:1 is recommended by a couple of oil manufactures but if I were you I'd wait until you're sure the engine is broken in and runnng well before trying them. It usually takes a couple of gallons to consider youre engine to be broken in. Do you know how much running tme it has? Hope this helps a little and there'll be more answers coming. Stay tuned.
Tom
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Old 10-28-2009, 03:39 AM
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Default Re: newb gas ratio question

well it was rode at least 40 hours by previous owner and the engine sticker says it was broken in 50 hours before shipment... so 100-1?
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Old 10-28-2009, 11:45 AM
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Default Re: newb gas ratio question

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Originally Posted by JebGipson View Post
well it was rode at least 40 hours by previous owner and the engine sticker says it was broken in 50 hours before shipment... so 100-1?
Depends on what oil you're using. They are not at all the same. See what the manufacturer of the oil recommends. If it is Amsoil Sabre Professional you can go 50-1 and higher. See how your engine responds. The manufacturer says 100-1. I ran it at around 75-1 with no problems. Now I use opti-2 at 100-1 and like it. These are the only ones I have personal experience with on my bikes. Chainsaws and weed whackers, other small engines I used regular 2 stroke oil, but now just use opti-2 with everything.

I'm wondering about the claim of 50 hours running time before shipment. Is that for real? Was it from a private owner or new in the box? Good luck and check your plug to see how motor likes the mix... white is too lean, chocolate is good, black is too rich. These things sure are fun, aren't they?
SB
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