Question about Motorcycles
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Posted on Jan 02, 2017
Did you change your spark plug? Just because you have good spark does not mean the plug is firing under compression or the porcelain is not cracked.
Posted on Mar 25, 2009
I am sorry to say this, but the compression for that type of engine should be atleast 120 psi. Remove the muffler and look at the cylinder, it is scarred beyond repair.
Posted on Apr 22, 2009
First, check the fuel lines for cracks/breaks.
If they are o.k., then you will need to disassemble the carburetor again. Make sure the small screen in the carb. is free of debris. You should be able to see daylight through it. Use a Den Tek Brush, (http://www.drugstore.com/products/prod.asp?pid=165357&catid=1152), to clean the small portals in carb. These portals can become blocked. Reassemble and start.
(NOTE: If the cleaning doesn't work, then buy a carb. kit and replace all appropriate parts.)
If you need further assistance, just let me know.
Posted on Jun 14, 2009
hi there it only starts to back fire when the engine is hot this points to incorect valve clearances os slightly damaged valve seats this is only oticable when the engine is hot due to heat expansion the clearancea would be an easy fix but to doo valve seats the cylinder head would have to be removed which is quite a big jo although i would try the valve clearances first unfortunatly i do not have the clearances but im sure i atv shop would tell you or if you have the manufacturers service repair manual it will te you in there hope this helps ben
Posted on Oct 12, 2009
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