bogging/loading up

[2nsane]

just bought a 1990 x2 650 has a westcoast head and pipe rides fine while wide open but if you fall off a few times and kill it it loads up really bad and dies as soon as you give it some throttle. i think its the stock carb have any ideas on were to start?

 

[X2guy]

Could be too lean or could be too rich. If when running and it bogs when you hammer it it;s too lean

 

[frank rizzo]

You need to get rid of the stock carb, Buy a intake, and A 44bn carb,< That will make your ski run great, may need to adjust a little ,, That is what a alot of people run on most 650'ss

 

[2nsane]

i think i figured it out way to rich and fouls out the plugs and runs like crap and doesnt rev out like it should. im not sure what carb is on it, its not stock i dont think. cause the stock carbs i didnt think you could replace the jets. this one is a Keihn Carb but have no clue what size it is. it has a 46 pilot and a 125 main

 

[madscientist]

bump the jets to 68-75 low and 130-135 high

 

[WFO Speedracer]

i think i figured it out way to rich and fouls out the plugs and runs like crap and doesnt rev out like it should. im not sure what carb is on it, its not stock i dont think. cause the stock carbs i didnt think you could replace the jets. this one is a Keihn Carb but have no clue what size it is. it has a 46 pilot and a 125 main

All kehins have replacable jets,Kehins are hard to identify size wise just by looking at the carb,you really need to measure the bottom of the carb to determine the size.Does it have an integral fuel pump or a separate fuel pump,28's had a separate fuel pump ,all others excluding the rare 50mm Kehin had integral fuel pumps on the back of the carb.The seat is not replacable on the Kehin unless you go with the whole carb plate with the larger needle and seat built in,but yeah it sounds like you need a new needle,don't worry about jetting till you have that straightened out.There are different springs for the Kehins to adjust popoff also,most people don't know where to find them.

 

[2nsane]

so changed out the needle and spring? the needle looks good no wear marks or anything.