Jump to content
Sign in to follow this  

50 cc 2 stroke lots of smoke after new top end

Recommended Posts

So my friend just bought a ktm 50cc for his son to race.  The guy that sold it to him says he just did a top end and only used the bike about 30 minutes.  He also says that he mixes gas/oil at 40:1.    If you start the bike and rev it up it doesn't really smoke that bad, but when you let off the throttle lots a blue smoke comes out.  

QUESTIONS

 

1) Is this normal after a new top end?

2) Maybe it smokes a  lot because of the 40:1 mix, if we use 60:1 would it make that big of difference.

3) Could there be something wrong with the top end rebuild that needs to be addressed?

 

Thanks for your help guys. :ride:

Edited by big mike42

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Reply with:

Sign in to follow this  

×
×
  • Create New...