whats up with the top end? - Kawasaki KFX450 Forum

06BLUEGTOGUYinwv · 09-30-2011, 01:47 AM

i traded a bad ass 2000 YZF with 426 kit for a 2008 KFX 450r. the bike is snappy and all stock. now I've had some well a lot of mods done to my TRX 450ER but the sprockets are the same size and the Kaw will keep up speed wise and tops out in 5th gear and on the TRX i'm in 4th gear. I grab 5TH and its bye bye Kaw. is the transmission gearing that much different?

kawie450r · 09-30-2011, 11:26 AM

Put a 15t front sprocket on the kawi. Night and day difference. I have never even hit the rev limiter on my kawi in 5th with a 15t front sprocket.

06BLUEGTOGUYinwv · 10-03-2011, 05:04 PM

Well i can under stand how a 15 tooth sprocket would give me a lot more top end. but the problem i have with that is in the tight woods i have to slip the clutch a lot to keep from stalling. it just seems like the gears are real tight together and when i run side be side with my TRX 450 5th gear loses the KFX 450. it not really a big deal since the kaw is for my wife i just wondered if anyone else noticed that.
and one other thing i wonder if anyone has had this problem but if i ride my TRX a while and then jump on the KFX i stall it over and over again plus thats a big issue for my wife.

06BLUEGTOGUYinwv · 10-03-2011, 05:07 PM

By the way kawie450r sweet bike!!

09-30-2011, 01:47 AM	#1 (permalink)
06BLUEGTOGUYinwv Junior Member Join Date: Sep 2011 Posts: 3	whats up with the top end? i traded a bad ass 2000 YZF with 426 kit for a 2008 KFX 450r. the bike is snappy and all stock. now I've had some well a lot of mods done to my TRX 450ER but the sprockets are the same size and the Kaw will keep up speed wise and tops out in 5th gear and on the TRX i'm in 4th gear. I grab 5TH and its bye bye Kaw. is the transmission gearing that much different?

09-30-2011, 11:26 AM	#2 (permalink)
kawie450r Senior Member Join Date: Apr 2009 Posts: 160	Put a 15t front sprocket on the kawi. Night and day difference. I have never even hit the rev limiter on my kawi in 5th with a 15t front sprocket. __________________

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10-03-2011, 05:04 PM	#3 (permalink)
06BLUEGTOGUYinwv Junior Member Join Date: Sep 2011 Posts: 3	Well i can under stand how a 15 tooth sprocket would give me a lot more top end. but the problem i have with that is in the tight woods i have to slip the clutch a lot to keep from stalling. it just seems like the gears are real tight together and when i run side be side with my TRX 450 5th gear loses the KFX 450. it not really a big deal since the kaw is for my wife i just wondered if anyone else noticed that. and one other thing i wonder if anyone has had this problem but if i ride my TRX a while and then jump on the KFX i stall it over and over again plus thats a big issue for my wife.

10-03-2011, 05:07 PM	#4 (permalink)
06BLUEGTOGUYinwv Junior Member Join Date: Sep 2011 Posts: 3	By the way kawie450r sweet bike!!

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