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PostPosted: Tue Aug 24, 2010 1:46 pm 
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Joined: Mon Aug 23, 2010 2:03 pm
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Thinking about premixing the fuel..seems to be the way to go based on past comments.

How do I know if the oil injector is not working properly?


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PostPosted: Thu Aug 26, 2010 5:08 am 
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ATVing To The End
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Joined: Fri Nov 21, 2003 4:56 pm
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Location: Ohio
It is either 32:1 or 40:1, take your pick, with 40:1 being the factory recommendation I believe. 32:1 would be safer, but might reduce performance a bit, and will smoke more. Some 2-strokers think the 32:1 ratio makes them run hotter. There are others that think 40:1 is too lean on oil and will cause engine failure. I do not know, since I have never owned a 2-stroke quad, so take my comments for what they are worth. I do run 32:1 in all my 2-stroke yard and garden engines (tiller, leaf blower, string trimmer). The last 2 are 15+ years old and still running good.

32:1 is 4 oz. of oil to every gallon of gas. Use of a synthetic oil is recommended these days by all 2-strokers I know. In years past some used soybean oil, but it proved less than satisfactory in the long run.

If there is no 2-stroke smoke coming out of the exhaust it is safe to bet the injector is not working. Even if it is working there is a chance it will run with too little oil injected, or the tank will run low and lean out the mix. Most 2-strokers think it is safer to pre-mix, since at low rpms you are getting very little oil from the injector. The injector is engine speed based, so if your quad is run at low speed a lot, definitely pre-mix. There have been cases where a 2-stroke quad was allowed to run at idle for a while (read: too long) and seized up.

Here is a short write up on the LT80 oil, which should apply to your LT50 as well.
http://www.weeksmotorcycle.com/lt80_engine_oil.html


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PostPosted: Mon Aug 30, 2010 12:46 pm 
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Still on the Trailer Member

Joined: Mon Aug 23, 2010 2:03 pm
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Very good information..I thank you.

Now....how do I remove the oil injection or properly disable it if I choose to pre-mix?


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PostPosted: Mon Aug 30, 2010 1:54 pm 
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ATVing To The End
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Joined: Fri Nov 21, 2003 4:56 pm
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Location: Ohio
If you search the net I am sure you will find a site that spells out how to remove the injector pump and block off the oil passages.
I honestly have no idea. :wink:


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