Changing Fuel

Old 01-01-2011, 08:33 PM
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Default Changing Fuel

Hey guys will changing fuel after Break in hurt my nitor motor
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Old 01-01-2011, 08:41 PM
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no ... if i switch brands, i just rich it a half turn because some may make it to leaner/hotter. then re-tune.
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Old 01-02-2011, 03:02 AM
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Nope, you migh have to turn the needles a little.
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Old 01-02-2011, 08:08 PM
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just re-tune, same as changing plugs, compression, gearing, pipes...etc.
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Old 01-02-2011, 09:03 PM
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although some of the different oils in different fuels do not play well with others it would be a good idea to clean the engine out but it should not kill the engine


i like my engines clean , its one of my things
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Old 01-02-2011, 09:07 PM
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for once agree with HES...

run a tank at low rpm w/o stabbing the throttle. this will flush out your old fuel. not all oils mix with each other and can leave dry spots on bearings etc..
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Old 01-03-2011, 02:17 AM
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Originally Posted by jpalessi View Post
for once agree with HES...

run a tank at low rpm w/o stabbing the throttle. this will flush out your old fuel. not all oils mix with each other and can leave dry spots on bearings etc..
Funny joe

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Old 01-03-2011, 04:03 AM
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what about using the same brand same olis etc but going from 25% to 30% thats after about 1 gal on the engine?
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Old 01-03-2011, 07:33 AM
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A fuel will cause the engine to have certain wear characteristics due to nitro content and oil used. To change fuel nitro content or brand requires that you "break in" the engine to the new fuel for a tank or two.
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Old 01-03-2011, 09:14 AM
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I'm kind of confuse, Why do you need to brake it in the engine when change fuels?
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Old 01-03-2011, 12:10 PM
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Originally Posted by Klink View Post
Hey guys will changing fuel after Break in hurt my nitor motor

You will just need to retune it. It shouldn't take you more than a tank to get the engine adjusted to the new oils and the fuel burning characteristics.

You could just bring it by also Jason if you need help this spring.
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