2021 KX250

9/14/2020 2:52am
Well my wife put about 2.5 hours on it so far. Probably 1/2 hr of that was me. Compared to her 19 YZ250f it feels way ahead. Way more agile, light, and the motor revs forever without giving up bottom end and just feels like it revs much more freely if that makes sense. I bought a 51 tooth rear sprocket thinking I would need to throw it on and it pulls the stock 50 more than fine. The suspension is way to stiff for her at 155lbs. It handles identically to my 2020 kx450. We are more than happy with our choice.

One weird thing I have noticed and maybe its a kawi 250 thing I am just unaware of. If you start the bike with the choke out it starts as it should with the idle raised but if you leave it on for more than 20 seconds or so it revs to about 6500 and just holds steady there. I couldn't find anything disconnected or out of adjustment so a bit stumped on that.
6
LKHill
Posts
851
Joined
9/8/2020
Location
USA
9/14/2020 6:18am Edited Date/Time 9/14/2020 6:21am
Well my wife put about 2.5 hours on it so far. Probably 1/2 hr of that was me. Compared to her 19 YZ250f it feels way...
Well my wife put about 2.5 hours on it so far. Probably 1/2 hr of that was me. Compared to her 19 YZ250f it feels way ahead. Way more agile, light, and the motor revs forever without giving up bottom end and just feels like it revs much more freely if that makes sense. I bought a 51 tooth rear sprocket thinking I would need to throw it on and it pulls the stock 50 more than fine. The suspension is way to stiff for her at 155lbs. It handles identically to my 2020 kx450. We are more than happy with our choice.

One weird thing I have noticed and maybe its a kawi 250 thing I am just unaware of. If you start the bike with the choke out it starts as it should with the idle raised but if you leave it on for more than 20 seconds or so it revs to about 6500 and just holds steady there. I couldn't find anything disconnected or out of adjustment so a bit stumped on that.
Thanks for your review. I have a hard time believing a 2020 kx450 feels way more agile that a 2019 yz250f (never rode either). Why would you not turn the choke off when the revs start to climb? It's EFI, not a carb.
mxryan25
Posts
176
Joined
11/27/2018
Location
Dayton, OH, USA
9/14/2020 6:34am Edited Date/Time 9/14/2020 6:49am
LKHill wrote:
Thanks for your review. I have a hard time believing a 2020 kx450 feels way more agile that a 2019 yz250f (never rode either). Why would...
Thanks for your review. I have a hard time believing a 2020 kx450 feels way more agile that a 2019 yz250f (never rode either). Why would you not turn the choke off when the revs start to climb? It's EFI, not a carb.
I don’t think he meant a kx450 feels more agile than a yz250f Blink my buddy who has a 20’ yzf took a spin on my bike yesterday and he had the same comments, engine feels really free and bike feels lighter more agile comparatively. I haven’t left it choked more than a few seconds and a lot of times don’t even use it mine starts up effortlessly
Also tried the aggressive white coupler yesterday, definitely gave it some more bottom end torque and kept the top end power. It did feel slightly more bound up on decel but nothing major, will likely keep the white plug in 24/7
1
1
9/14/2020 6:56am
Well my wife put about 2.5 hours on it so far. Probably 1/2 hr of that was me. Compared to her 19 YZ250f it feels way...
Well my wife put about 2.5 hours on it so far. Probably 1/2 hr of that was me. Compared to her 19 YZ250f it feels way ahead. Way more agile, light, and the motor revs forever without giving up bottom end and just feels like it revs much more freely if that makes sense. I bought a 51 tooth rear sprocket thinking I would need to throw it on and it pulls the stock 50 more than fine. The suspension is way to stiff for her at 155lbs. It handles identically to my 2020 kx450. We are more than happy with our choice.

One weird thing I have noticed and maybe its a kawi 250 thing I am just unaware of. If you start the bike with the choke out it starts as it should with the idle raised but if you leave it on for more than 20 seconds or so it revs to about 6500 and just holds steady there. I couldn't find anything disconnected or out of adjustment so a bit stumped on that.
LKHill wrote:
Thanks for your review. I have a hard time believing a 2020 kx450 feels way more agile that a 2019 yz250f (never rode either). Why would...
Thanks for your review. I have a hard time believing a 2020 kx450 feels way more agile that a 2019 yz250f (never rode either). Why would you not turn the choke off when the revs start to climb? It's EFI, not a carb.
Very well aware how efi works. Question was that it just weird that the revs would go high like that and just hold.

I am a yamaha fanatic and rode both the yz450f and the kx450 and the agile part is the first thing you notice. Which is why I went with the kx over the yamaha. The kx is by far slimmer and you can certainly feel the weight difference.

The Shop

LKHill
Posts
851
Joined
9/8/2020
Location
USA
9/14/2020 7:02am
mxryan25 wrote:
I don’t think he meant a kx450 feels more agile than a yz250f :blink: my buddy who has a 20’ yzf took a spin on my...
I don’t think he meant a kx450 feels more agile than a yz250f Blink my buddy who has a 20’ yzf took a spin on my bike yesterday and he had the same comments, engine feels really free and bike feels lighter more agile comparatively. I haven’t left it choked more than a few seconds and a lot of times don’t even use it mine starts up effortlessly
Also tried the aggressive white coupler yesterday, definitely gave it some more bottom end torque and kept the top end power. It did feel slightly more bound up on decel but nothing major, will likely keep the white plug in 24/7
That's great news. Yeah, maybe so. if that is the case the 250 does not handle "identically" to the 450. Good to hear the bottom power is not lackluster. From the design changes it seemed like they where after bottom end and found a bonus 1.3HP on top. Given the nature of the 450 chassis I felt sure it would be a handler.

Now if they would only start showing up at the dealers in NY. Sad

I sold my 2018 a few weeks back and am 250F less.
9/14/2020 7:22am
LKHill wrote:
Thanks for your review. I have a hard time believing a 2020 kx450 feels way more agile that a 2019 yz250f (never rode either). Why would...
Thanks for your review. I have a hard time believing a 2020 kx450 feels way more agile that a 2019 yz250f (never rode either). Why would you not turn the choke off when the revs start to climb? It's EFI, not a carb.
mxryan25 wrote:
I don’t think he meant a kx450 feels more agile than a yz250f :blink: my buddy who has a 20’ yzf took a spin on my...
I don’t think he meant a kx450 feels more agile than a yz250f Blink my buddy who has a 20’ yzf took a spin on my bike yesterday and he had the same comments, engine feels really free and bike feels lighter more agile comparatively. I haven’t left it choked more than a few seconds and a lot of times don’t even use it mine starts up effortlessly
Also tried the aggressive white coupler yesterday, definitely gave it some more bottom end torque and kept the top end power. It did feel slightly more bound up on decel but nothing major, will likely keep the white plug in 24/7
Interesting, at the end of the day which bike did he prefered ? Did he find points the yami was doing better than the kawi ? Vice Versa ?

Really torn between these two bikes for 2021 that's why i'm asking.

Regarding the agility of the bike, the new YZF will be better for 2021 but i don't think it will be more agile than the kawi.

I did ride again the 19 250 Yzf of my friend this weekend and man i really love this bike compared to my 350.
LKHill
Posts
851
Joined
9/8/2020
Location
USA
9/14/2020 7:28am
Very well aware how efi works. Question was that it just weird that the revs would go high like that and just hold. I am a...
Very well aware how efi works. Question was that it just weird that the revs would go high like that and just hold.

I am a yamaha fanatic and rode both the yz450f and the kx450 and the agile part is the first thing you notice. Which is why I went with the kx over the yamaha. The kx is by far slimmer and you can certainly feel the weight difference.
Thanks again for your review. Are you saying the rpm's hang after you turn the choke off? If not they likely just increased the size of the orifice to enhance cold starts.
mxryan25
Posts
176
Joined
11/27/2018
Location
Dayton, OH, USA
9/14/2020 8:40am Edited Date/Time 9/14/2020 8:48am
Interesting, at the end of the day which bike did he prefered ? Did he find points the yami was doing better than the kawi...
Interesting, at the end of the day which bike did he prefered ? Did he find points the yami was doing better than the kawi ? Vice Versa ?

Really torn between these two bikes for 2021 that's why i'm asking.

Regarding the agility of the bike, the new YZF will be better for 2021 but i don't think it will be more agile than the kawi.

I did ride again the 19 250 Yzf of my friend this weekend and man i really love this bike compared to my 350.
That’s about all he had to say were those comments and that he didn’t except to like it but he did a lot! Another smooth private track so hard to get a really good feel and he’s more of a novice rider. I did ride his bike quite a few times before I got my kx, every chance a i got Woohoo the yz for sure has more bottom end torque but falls flat in the top end and doesn’t rev as high, I prefer the kx engine because it feels strong throughout the whole range but also don’t know how big of a gain the 21 yz will be. Stock suspension the yz is definitely more plush, would better suite a 150ish lb pro to 180ish lb novice. Where as the kx is setup quite aggressively for a 250f it’s feeling dialed for me at 180 lb a/b rider but anyone under 170 lb will likely be searching for more comfort in the front end especially. Both bike have great engine, suspension, and chassis. But for me the kx just feels more comfortable with its slimness and ergonomics. The yz felt plenty agile in turns every bit as good as the kx, just the ergos can just make it feel a bit awkward at times
1
MotoChris
Posts
456
Joined
12/12/2016
Location
Vilonia, AR, USA
9/14/2020 5:07pm
Any input on rider triangle (peg to seat to handlebar distance) comparison between the YZ250F and KX250? I was happy to see that the KX offered lower peg position until I realized that it also moved them forward too. I’m 6’1 and very interested in rider compartment space.
LKHill
Posts
851
Joined
9/8/2020
Location
USA
9/14/2020 5:22pm
Maybe it is something new but on the older kawi's it did not move the pegs forward. I am 6'1" but have long legs and they fit me better than any other brand.
JB479
Posts
805
Joined
1/11/2012
Location
AU
9/15/2020 1:38am
MotoChris wrote:
Any input on rider triangle (peg to seat to handlebar distance) comparison between the YZ250F and KX250? I was happy to see that the KX offered...
Any input on rider triangle (peg to seat to handlebar distance) comparison between the YZ250F and KX250? I was happy to see that the KX offered lower peg position until I realized that it also moved them forward too. I’m 6’1 and very interested in rider compartment space.
The yz250f have a smaller rider triangle then the kx’s. I run my 2020 kx450 In the lower footpeg position and the bars mounts in the foward holes. Whenever i get on my mates YZ250f, the footpegs feel alot higher.
Dirt231
Posts
27
Joined
3/6/2020
Location
Pekin, IL, USA
9/15/2020 4:05am
Well my wife put about 2.5 hours on it so far. Probably 1/2 hr of that was me. Compared to her 19 YZ250f it feels way...
Well my wife put about 2.5 hours on it so far. Probably 1/2 hr of that was me. Compared to her 19 YZ250f it feels way ahead. Way more agile, light, and the motor revs forever without giving up bottom end and just feels like it revs much more freely if that makes sense. I bought a 51 tooth rear sprocket thinking I would need to throw it on and it pulls the stock 50 more than fine. The suspension is way to stiff for her at 155lbs. It handles identically to my 2020 kx450. We are more than happy with our choice.

One weird thing I have noticed and maybe its a kawi 250 thing I am just unaware of. If you start the bike with the choke out it starts as it should with the idle raised but if you leave it on for more than 20 seconds or so it revs to about 6500 and just holds steady there. I couldn't find anything disconnected or out of adjustment so a bit stumped on that.
Thats a kawi thing, when they're real cold they wont rev out like that, blip the throttle and it will rev out. I personally choke, start, let run till it does the rev out, choke off, wait for radiators to get warm, take off.
mxryan25
Posts
176
Joined
11/27/2018
Location
Dayton, OH, USA
9/15/2020 4:37am
JB479 wrote:
The yz250f have a smaller rider triangle then the kx’s. I run my 2020 kx450 In the lower footpeg position and the bars mounts in the...
The yz250f have a smaller rider triangle then the kx’s. I run my 2020 kx450 In the lower footpeg position and the bars mounts in the foward holes. Whenever i get on my mates YZ250f, the footpegs feel alot higher.
I agree, both seat to peg and seat to bars feel slightly closer on the yz. I’m 6’ really comfortable with the stock peg and bar mount position. I’ll likely go to a different bar bend but that’s it
MotoChris
Posts
456
Joined
12/12/2016
Location
Vilonia, AR, USA
9/15/2020 5:48pm
MotoChris wrote:
Any input on rider triangle (peg to seat to handlebar distance) comparison between the YZ250F and KX250? I was happy to see that the KX offered...
Any input on rider triangle (peg to seat to handlebar distance) comparison between the YZ250F and KX250? I was happy to see that the KX offered lower peg position until I realized that it also moved them forward too. I’m 6’1 and very interested in rider compartment space.
JB479 wrote:
The yz250f have a smaller rider triangle then the kx’s. I run my 2020 kx450 In the lower footpeg position and the bars mounts in the...
The yz250f have a smaller rider triangle then the kx’s. I run my 2020 kx450 In the lower footpeg position and the bars mounts in the foward holes. Whenever i get on my mates YZ250f, the footpegs feel alot higher.
Thanks for the info. I currently have a 2019 YZ250f and it’s an awesome bike but I am considering a 21 KX250.
9/21/2020 6:19pm
MotoChris wrote:
Any input on rider triangle (peg to seat to handlebar distance) comparison between the YZ250F and KX250? I was happy to see that the KX offered...
Any input on rider triangle (peg to seat to handlebar distance) comparison between the YZ250F and KX250? I was happy to see that the KX offered lower peg position until I realized that it also moved them forward too. I’m 6’1 and very interested in rider compartment space.
JB479 wrote:
The yz250f have a smaller rider triangle then the kx’s. I run my 2020 kx450 In the lower footpeg position and the bars mounts in the...
The yz250f have a smaller rider triangle then the kx’s. I run my 2020 kx450 In the lower footpeg position and the bars mounts in the foward holes. Whenever i get on my mates YZ250f, the footpegs feel alot higher.
MotoChris wrote:
Thanks for the info. I currently have a 2019 YZ250f and it’s an awesome bike but I am considering a 21 KX250.
The old lowered peg setup used to move them forward to move them down. Since 2019, the 450s have been a straight drop. I’m sure the 250s will be the same in 21.
1
LKHill
Posts
851
Joined
9/8/2020
Location
USA
9/21/2020 6:34pm
The old lowered peg setup used to move them forward to move them down. Since 2019, the 450s have been a straight drop. I’m sure the...
The old lowered peg setup used to move them forward to move them down. Since 2019, the 450s have been a straight drop. I’m sure the 250s will be the same in 21.
Funny I had both a 2017 and 2018 and that was not the case.
9/22/2020 1:49pm
Hoping someone can chime in on this on our 21.

Picked up some springs from factory connection since they are nearby. The bike is my wifes and she races the women's class and is 155lbs 5'9. They recommended 4.4kg fork springs and a 5.3 kg rear. Havent had a chance to ride yet but I can't get close at all between my static and race sag.

Was always told 30-40mm is what your looking for for static sag when your race sag is set. At 103mm in gear I am sitting right at 48mm. Stock rear spring i was at 90 and 40.

When I called them to question about it they told me high static sag numbers are no big deal as long as there is preload on the spring? This seems off from what all suspension guys have told me. With that high of a static number wouldn't the shock already be riding down in the stroke to much?

Thinking I need to go down to a 4.9 kg?
LKHill
Posts
851
Joined
9/8/2020
Location
USA
9/22/2020 2:02pm Edited Date/Time 9/22/2020 2:03pm
Hoping someone can chime in on this on our 21. Picked up some springs from factory connection since they are nearby. The bike is my wifes...
Hoping someone can chime in on this on our 21.

Picked up some springs from factory connection since they are nearby. The bike is my wifes and she races the women's class and is 155lbs 5'9. They recommended 4.4kg fork springs and a 5.3 kg rear. Havent had a chance to ride yet but I can't get close at all between my static and race sag.

Was always told 30-40mm is what your looking for for static sag when your race sag is set. At 103mm in gear I am sitting right at 48mm. Stock rear spring i was at 90 and 40.

When I called them to question about it they told me high static sag numbers are no big deal as long as there is preload on the spring? This seems off from what all suspension guys have told me. With that high of a static number wouldn't the shock already be riding down in the stroke to much?

Thinking I need to go down to a 4.9 kg?
If you want to match the forks, yes. My pick would be 4.6 forks and 5.1 shock.
9/22/2020 4:10pm
Forgot to add they recommended 300cc of oil in the forks rather than the stock 340cc
9/22/2020 6:21pm
Hoping someone can chime in on this on our 21. Picked up some springs from factory connection since they are nearby. The bike is my wifes...
Hoping someone can chime in on this on our 21.

Picked up some springs from factory connection since they are nearby. The bike is my wifes and she races the women's class and is 155lbs 5'9. They recommended 4.4kg fork springs and a 5.3 kg rear. Havent had a chance to ride yet but I can't get close at all between my static and race sag.

Was always told 30-40mm is what your looking for for static sag when your race sag is set. At 103mm in gear I am sitting right at 48mm. Stock rear spring i was at 90 and 40.

When I called them to question about it they told me high static sag numbers are no big deal as long as there is preload on the spring? This seems off from what all suspension guys have told me. With that high of a static number wouldn't the shock already be riding down in the stroke to much?

Thinking I need to go down to a 4.9 kg?
I had the same conversation with Factory Connection recently. I told them my static sag numbers were high and they gave me the same answer (this is on a ‘19 KX450). I gotta say, they knew what they were talking about. This is the best handling bike I’ve ever owned.
9/22/2020 6:48pm
The old lowered peg setup used to move them forward to move them down. Since 2019, the 450s have been a straight drop. I’m sure the...
The old lowered peg setup used to move them forward to move them down. Since 2019, the 450s have been a straight drop. I’m sure the 250s will be the same in 21.
LKHill wrote:
Funny I had both a 2017 and 2018 and that was not the case.
Correct. Completely new frame in 2019.
LKHill
Posts
851
Joined
9/8/2020
Location
USA
9/22/2020 7:52pm
The old lowered peg setup used to move them forward to move them down. Since 2019, the 450s have been a straight drop. I’m sure the...
The old lowered peg setup used to move them forward to move them down. Since 2019, the 450s have been a straight drop. I’m sure the 250s will be the same in 21.
LKHill wrote:
Funny I had both a 2017 and 2018 and that was not the case.
Correct. Completely new frame in 2019.
No it's not correct. The pegs don't more forward on the '17/ '18.
1
9/22/2020 8:06pm
LKHill wrote:
Funny I had both a 2017 and 2018 and that was not the case.
Correct. Completely new frame in 2019.
LKHill wrote:
No it's not correct. The pegs don't more forward on the '17/ '18.
I have no idea what the ‘17 and ‘18 do (I never owned one). I just know that ‘19 and newer is a vertical drop 🤦🏼‍♂️
LKHill
Posts
851
Joined
9/8/2020
Location
USA
9/22/2020 8:19pm Edited Date/Time 9/22/2020 8:21pm
Correct. Completely new frame in 2019.
LKHill wrote:
No it's not correct. The pegs don't more forward on the '17/ '18.
I have no idea what the ‘17 and ‘18 do (I never owned one). I just know that ‘19 and newer is a vertical drop 🤦🏼‍♂️
Did you not post this?

"The old lowered peg setup used to move them forward to move them down. Since 2019, the 450s have been a straight drop. I’m sure the 250s will be the same in 21."

I doubt that any year moved them forward.
1
9/23/2020 8:32am
LKHill wrote:
No it's not correct. The pegs don't more forward on the '17/ '18.
I have no idea what the ‘17 and ‘18 do (I never owned one). I just know that ‘19 and newer is a vertical drop 🤦🏼‍♂️
LKHill wrote:
Did you not post this? "[b]The old lowered peg setup used to move them forward to move them down[/b]. Since 2019, the 450s have been a...
Did you not post this?

"The old lowered peg setup used to move them forward to move them down. Since 2019, the 450s have been a straight drop. I’m sure the 250s will be the same in 21."

I doubt that any year moved them forward.
The last Kawasaki I owned with adjustable pegs (a 2013 450) moved the pegs forward when moving them down, as I recall. I thought this might be what he was referring to.
LKHill
Posts
851
Joined
9/8/2020
Location
USA
9/23/2020 8:40am
The last Kawasaki I owned with adjustable pegs (a 2013 450) moved the pegs forward when moving them down, as I recall. I thought this might...
The last Kawasaki I owned with adjustable pegs (a 2013 450) moved the pegs forward when moving them down, as I recall. I thought this might be what he was referring to.
Apparently you never tried to move them because that's not the case.
4
nascarnate326
Posts
3008
Joined
11/3/2014
Location
Charlotte, MI, USA
9/23/2020 5:37pm
The last Kawasaki I owned with adjustable pegs (a 2013 450) moved the pegs forward when moving them down, as I recall. I thought this might...
The last Kawasaki I owned with adjustable pegs (a 2013 450) moved the pegs forward when moving them down, as I recall. I thought this might be what he was referring to.
LKHill wrote:
Apparently you never tried to move them because that's not the case.
I swear on my 2018 kx250f they do not go straight up or down. they go forward or backwards a very small amount.
2
kNewc
Posts
1169
Joined
3/17/2017
Location
USA
9/27/2020 6:33am
Got mine Friday and started breaking it in that day. I have an '05 RMZ450 and I figured this would be a lot less powerful but it rips! 3rd gear pulled a lot longer than I expected for a 250. It's my first EFI bike and there's a major difference. Suspension was pretty stiff for me and I weigh 210 with gear on. It felt tall and I had to be on my toes, but my sag wasn't set. I rode through our home track and a tilled field and it handled great. Can't wait to get into some deep stuff.


12
soggy
Posts
8772
Joined
12/3/2018
Location
USA
9/28/2020 7:18am
kNewc wrote:
Got mine Friday and started breaking it in that day. I have an '05 RMZ450 and I figured this would be a lot less powerful but...
Got mine Friday and started breaking it in that day. I have an '05 RMZ450 and I figured this would be a lot less powerful but it rips! 3rd gear pulled a lot longer than I expected for a 250. It's my first EFI bike and there's a major difference. Suspension was pretty stiff for me and I weigh 210 with gear on. It felt tall and I had to be on my toes, but my sag wasn't set. I rode through our home track and a tilled field and it handled great. Can't wait to get into some deep stuff.


At your size I'd be surprised if the suspension was too stiff. I wouldn't be surprised if it's actually too soft and you are riding to far down in the stroke, just a thought.
8

Post a reply to: 2021 KX250

The Latest