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Old March 29th, 2023, 02:23 PM   #44
Shafer
ninjette.org member
 
Name: Jay
Location: Nh
Join Date: Aug 2022

Motorcycle(s): 07 Ninja ex250 blue and 07 Ninja black

Posts: 133
Quote:
Originally Posted by Triple Jim View Post
Since I got my carbs back from Ducatiman, they do not need shims, and there is no lean spot. Stock jetting tends to be a little on the rich side, at least the main jets. On long rides without a lot of hot rodding, I get close to 70 mpg. Shimming needles will drop that quickly.

The lean spot develops over time if deposits start forming. Often a buyer of a used 250 will find needle shims and idle screws way open, in an attempt by the previous owner to make up for partially clogged carbs.
That's definitely good to know, definitely going to leave them out, and shoot for perfect running.. Plus less variables for troubleshooting while getting these bikes back on the road.

Pressure is on at home, got the talk....are you sure you know what you are doing with the bikes from the gf. The Motorcycle mechanic in me died a little, lol

All in now haha
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