Billym247 Posted July 21, 2011 Share Posted July 21, 2011 I have a 1991 yamaha dt50mx with a big bore kit, full gianelli exhaust system, i am going to get a k&n filter for it and racing reeds. I was wondering which jets in the carburettor i will need to change? Thanks Link to comment Share on other sites More sharing options...
Battered Posted July 22, 2011 Share Posted July 22, 2011 Bigger main jet. In the old days we had a Ledar air corrector kit, that came with all the parts needed to run K&N or S&B filters and expansion chambers. Some bikes needed an extension tube between the carb and the filter as well, but I don't know if your bike is one of them. Link to comment Share on other sites More sharing options...
Recommended Posts