Quote:
Originally Posted by marshallsmith27
@ DannoXYZ Something I realized is that it idled so much better when cool. so I guess the 108 is rich? but I have pods and stock exhaust. I'm still not sure what the stock mains were |
Quote:
Quote:
Originally Posted by marshallsmith27
main jet recommendations to start out with k&n pod?
|
Start with stock 105 mains and 1.5-2.0mm washers under needles.
|
Mains don't affect idle in any way. Issues you're having at idle is due to 40 pilots and too much fuel. Put factory 38s back in.
Stock main is 105, put those back in as well. Pods don't improve flow in any way because factory airbox & filtre is not restrictive. They're same size as on my CBR600RR which flows 4x as much air. Dyno-testing has shown that pods don't increase airflow and doesn't improve power for ninjette. On BIG '80s +1200cc 4-cyl bikes, yes, squeezing 4x carbs and one airbox into that space may cause some restrictions and pods may free up some flow. What works on big 4-cyl bike does not on 2-cyl 250.
Racers with full-exhaust upgrades and +20% more flow & power are using 100-102 mains on this bike. Simply too rich from factory as it is.
Need to track down what's causing erratic vacuum on right carb.
