Hi Im having trouble with a dna 50 , and many of you have this problem to ,
the problem is it wont move once i sit on it , or it will go for a few minutes then it wont pull away with me on it ,and only revs up to 5000rpm
ive changed everything , the only thing I havent changed is the CDI unit which is next on my list ,
have you added a sport air filter. If you have remove it or change the jetting. I had this problem where either to much air was gettin in or not enuf. I revved and it would move abit, then bog down and flood. In the end i ended up removin the sport air filter. Hope this helps
dec2365336
June 2008
your automatic choke unit is fualty take it off and blank the hole with a 5p
Thomas
June 2008
the needle position was wrong , fixed that , so now idle speed is better
but if I throttle hard it cuts out , n hisses from the exhaust
if i gently accelerate its better , no matter how I adjust the
mixture , its hit or miss whether it gets me there
jase
April 2008
I think its going to be more of a carburetor set up problem
the exhaust is not blocked , though it has been getting very hot under the current carb setting
any one know how to set up a dellorto slide carburetor
jason
April 2008
the exhaust will be blocked up ty loosening it where it bolts to the barrel and see if it maks it better,this isnt a cure of course just a test to see if its the problem for sure,i would clean out the exhaust with caustic soda or cut it open take out the blocked baffles and weld it back together.
adam actual motorcycle mechanic since 1982
April 2008
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