need motor help

[ZRrider600]

I need some help, Lastnight i was riding and it started bogging down really bad so i put new plugs in which helped quite a bit, now i can only go 50 mph and it cuts out like a ATV does when its going as fast as it goes.. and when you hit the throttle hard at a dead stop it takes about 5 seconds to respond then it goes good, or else when your going about 20-30 mph and hit the throttle hard it bogs down for about 5 seconds to.. What could this be? Thanks in advance. By the way the sled is a 2001 ZR 600 EFI.

 

[ZRrider600]

no one knows anything about this??? I need to get whatever it is ordered so i have some time to ride before the snow melts

 

[up-high]

When was the last time you checked/cleaned the clutches?

 

[ZRrider600]

I put a brand new secondary clutch in mid last winter...

 

[Ancient Sledder]

I ride a different sled, but when it acts up like that, it's snow dust getting into the carbs. Closing the air vents helps. Hope this helps.

 

[ZRrider600]

I dont know how it could get in the carbs because i have been driving it in my driveway and on the dirt road... Im kinda thinking its something electrical. Maybe the brainbox going out??

 

[golfsnownut]

Check your throttle pin bushings for wear. To test that, rev up motor to about 3000 before clutch engagement and hold it then try to apply little downward pressure on throttle. If engine start to lose rpm then that is the problem laying on throttle. Replace whole throttle or you can order bushing kit for throttle but that is temporarily fix and cheaper. It happened to my 98' ZR600 EFI

 

[racingpit]

Check the Throttle Position Sensor. You might also get lots of answers on arcticchat.com