Question about 2008 Keeway Matrix 150

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2 stroke engine smokes. how do you adjust the fuel/oil mixture?

I have not been riding my Keeway Scooter this winter, but, I've been starting it up every couple weeks.

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Possibly too much 2stroke oil in mixture causing spark plug to oil up .. needs to be run every day .. no adjustment that I know of to restrict oil mix .. !

Posted on Nov 07, 2012

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Hi my name is larry, i have a yamahaw bw scooter 50cc it smokes excessively hard to start sometimes i turn the key and nothing happens and sometimes it will just shut off while driving. what is this problem.

Posted on Aug 19, 2012

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The thing with two strokes is that they smoke a bit under normal operation, and they smoke like mad if they haven't really been run for a period of time, I would advise you to run it for a while and see if that helps.

You should not need to adjust the mixture settings at all.


Hope this helps

Posted on Feb 08, 2009

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Hi, Anonymous your instrument gauges and lights can alert you to most electrical and engine issues they can not warn you about failed engine gaskets or seals so your engine has to resort to old fashion alert methods of colored "SMOKE SIGNALS" here is a breakdown of their meaning:
1. COLORLESS OR SLIGHTLY BLUE SMOKE on start-up means your air/fuel mixture is at the right composition and everything is well burnt in your combustion chamber.
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Hi, Bmx_910 your instrument gauges and lights can alert you to most electrical and engine issues they can not warn you about failed engine gaskets or seals so your engine has to resort to old fashion alert methods of colored "SMOKE SIGNALS" here is a breakdown of their meaning:
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It should be noted that aggressive or abnormal throttle operation will cause these conditions to manifest themselves exponentially.
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