- Topics: 38
- Replies: 457
If 1 needle has 3 grooves –> the other one must be in equal height. (could be also 4 or 3rd slot) ,
either way a digital caliper can measure the needle height (AFTER) both are fitted on the black piston slides. you want both carbs equal in all cases.
middle of 3 grooves is factory. on a factory 3 groove needle.
// Meditation doesn't mean you have to sit still....