2021 KX250

paddyB745
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paddyB745 4/2/2021 6:23pm
4/2/2021 6:23pm
Somebody earlier in this thread mentioned something about a “prominent 250 team” having issues with the stock clutch plates and supposedly the fix was clutch plates from a 20. I put Hinson plates in mine just to be safe, 17 hrs and no issues so far.
1
BenC711
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BenC711 4/2/2021 11:55pm
4/2/2021 11:55pm
dancolvin633 wrote:
How many hours does everyone have on theirs?? And had anyone heard about clutch issues?
js451 wrote:
A mate of mine has had his clutch plates brake twice. But mine has been fine 🤷🏻‍♂️ Apparently there’s too much pressure in the brake line...
A mate of mine has had his clutch plates brake twice. But mine has been fine 🤷🏻‍♂️

Apparently there’s too much pressure in the brake line. They ended up getting a smaller clutch line and not having the master cylinder filled up so much
dancolvin633 wrote:
Did the plates break and take out the crank or anything?
Just put 2020 fibres in, they won’t break any more
1
mxryan25
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mxryan25 4/4/2021 11:06am
4/4/2021 11:06am

This bike handles like an absolute dream after a revalve from Enzo, the FMF system maybe added some more mid to top, but mainly sounds and looks a whole lot nicer. Stock mapping with green coupler. Would really like to pull the trigger on a vortex I think it’d be the icing on the cake 👌🏼
4
JohnMatrix
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JohnMatrix 4/4/2021 5:53pm
4/4/2021 5:53pm
mxryan25 wrote:
[img]https://p.vitalmx.com/photos/forums/2021/04/04/486368/s1200_C70B0885_BE74_4047_BC4A_59C46F4EAA62.jpg[/img] This bike handles like an absolute dream after a revalve from Enzo, the FMF system maybe added some more mid to top, but mainly sounds...

This bike handles like an absolute dream after a revalve from Enzo, the FMF system maybe added some more mid to top, but mainly sounds and looks a whole lot nicer. Stock mapping with green coupler. Would really like to pull the trigger on a vortex I think it’d be the icing on the cake 👌🏼
Nice! I agree, a revalve has mine cornering insanely well now. It’s so good in ruts, just a ton of fun. Are you running a 110 rear on yours?

The vortex is worth it!

The Shop

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Lightning78
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Lightning78 4/4/2021 7:55pm
4/4/2021 7:55pm
Asking if PC makes a good exhaust for a Kawasaki KX250f is like asking if mcdonalds has good french fries lol
7
mxryan25
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mxryan25 4/5/2021 6:14am
4/5/2021 6:14am
JohnMatrix wrote:
Nice! I agree, a revalve has mine cornering insanely well now. It’s so good in ruts, just a ton of fun. Are you running a 110...
Nice! I agree, a revalve has mine cornering insanely well now. It’s so good in ruts, just a ton of fun. Are you running a 110 rear on yours?

The vortex is worth it!
Yes, I ran the stock 100 3s, a 110 mx52, and now a fresh 110 33. Think I prefer the 110 not much a difference though
2
Branden_Moore313 4/5/2021 4:12pm
4/5/2021 4:12pm
Anyone with a 19-20 kx450 also have the 21 250 know if the 450 air filters will work on the 250? Just got the 250 and haven’t tried one yet and wasn’t sure
1
paddyB745
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paddyB745 4/5/2021 4:14pm
4/5/2021 4:14pm
Branden_Moore313 wrote:
Anyone with a 19-20 kx450 also have the 21 250 know if the 450 air filters will work on the 250? Just got the 250 and...
Anyone with a 19-20 kx450 also have the 21 250 know if the 450 air filters will work on the 250? Just got the 250 and haven’t tried one yet and wasn’t sure
Yes they work, same filter. That’s what I’ve been using in mine .
1
Branden_Moore313 4/5/2021 4:16pm
4/5/2021 4:16pm
Branden_Moore313 wrote:
Anyone with a 19-20 kx450 also have the 21 250 know if the 450 air filters will work on the 250? Just got the 250 and...
Anyone with a 19-20 kx450 also have the 21 250 know if the 450 air filters will work on the 250? Just got the 250 and haven’t tried one yet and wasn’t sure
paddyB745 wrote:
Yes they work, same filter. That’s what I’ve been using in mine .
Kinda figured since they look the same but wasn’t totally sure since oem parts diagrams show different part numbers between them thank you
fourfourone
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fourfourone 4/6/2021 4:58am
4/6/2021 4:58am
Kawi posted some stuff on IG yesterday and people were commenting about clutch issues on the new 250. Anyone having issues?
DuroTools
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DuroTools 4/6/2021 5:43am
4/6/2021 5:43am
fourfourone wrote:
Kawi posted some stuff on IG yesterday and people were commenting about clutch issues on the new 250. Anyone having issues?
I'm interested to hear more opinions from owners but the clutch has already been discussed top of this page and end of last I believe.
h_reed
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h_reed 4/6/2021 6:43am
4/6/2021 6:43am
fourfourone wrote:
Kawi posted some stuff on IG yesterday and people were commenting about clutch issues on the new 250. Anyone having issues?
DuroTools wrote:
I'm interested to hear more opinions from owners but the clutch has already been discussed top of this page and end of last I believe.
I have heard about the clutch plates breaking. I have a 21 and have 40 hours on it. Lots of off road racing and most of them in mud through the winter and spring here. I practice on moto tracks. I have inspected mine several times and haven't had any issues yet.
So far its been a great bike with no issues.
4
RQC Racing
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RQC Racing 4/7/2021 6:52am
4/7/2021 6:52am
dancolvin633 wrote:
How many hours does everyone have on theirs?? And had anyone heard about clutch issues?
js451 wrote:
A mate of mine has had his clutch plates brake twice. But mine has been fine 🤷🏻‍♂️ Apparently there’s too much pressure in the brake line...
A mate of mine has had his clutch plates brake twice. But mine has been fine 🤷🏻‍♂️

Apparently there’s too much pressure in the brake line. They ended up getting a smaller clutch line and not having the master cylinder filled up so much
That don't make sense to me, About smaller line and less fluid. Smaller line I think would increase PSI. Like holding you finger over a open end of a water hose. With less fluid you would still have the same amount of presser
motodad805
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motodad805 4/8/2021 9:44am
4/8/2021 9:44am
My kid has a 21 and has 24hours on it so far with 3 desert races. After the last race on Sunday he said that has clutch was acting up. “Felt like clutch was not disengaging”. Is this a symptom of broken steels?
WDSRCR
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WDSRCR 4/28/2021 10:01am
4/28/2021 10:01am
I am bailing off a KX450X for a KX250X for now and just got my suspension back, and a PC T-6 slip on installed. Looking forward to getting out on it this week.

The clutch problems I am reading about are concerning.

Also, anyone measuring the exact amount of oil needed on changes and then not seeing it in the sight glass very well?

kNewc
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kNewc 4/28/2021 11:02am
4/28/2021 11:02am
WDSRCR wrote:
I am bailing off a KX450X for a KX250X for now and just got my suspension back, and a PC T-6 slip on installed. Looking forward...
I am bailing off a KX450X for a KX250X for now and just got my suspension back, and a PC T-6 slip on installed. Looking forward to getting out on it this week.

The clutch problems I am reading about are concerning.

Also, anyone measuring the exact amount of oil needed on changes and then not seeing it in the sight glass very well?

How did you get the slip on and give me the hook-up lol. I also put in the exact amount of oil the manual called for and it showed very low in the site glass. I added another 250ml and it was normal after a small warm-up.
1
paddyB745
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paddyB745 4/28/2021 11:10am
4/28/2021 11:10am
Mine is the same, I usually end up with about 1000ml’s.
WDSRCR
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WDSRCR 4/28/2021 11:28am
4/28/2021 11:28am
WDSRCR wrote:
I am bailing off a KX450X for a KX250X for now and just got my suspension back, and a PC T-6 slip on installed. Looking forward...
I am bailing off a KX450X for a KX250X for now and just got my suspension back, and a PC T-6 slip on installed. Looking forward to getting out on it this week.

The clutch problems I am reading about are concerning.

Also, anyone measuring the exact amount of oil needed on changes and then not seeing it in the sight glass very well?

kNewc wrote:
How did you get the slip on and give me the hook-up lol. I also put in the exact amount of oil the manual called for...
How did you get the slip on and give me the hook-up lol. I also put in the exact amount of oil the manual called for and it showed very low in the site glass. I added another 250ml and it was normal after a small warm-up.
I ordered my Slip-On through Rehmerts Kawasaki in Versailles OH. It took about 2 weeks but I got it!

I will add a little more oil to see if that brings it up to the level I'd like to see in the glass.

I'd like to get out and give it a good ride soon.

Pit Row

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Zycki11
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Zycki11 4/28/2021 2:02pm
4/28/2021 2:02pm
DO NOT GO OFF OF THE SIGHT GLASS. Stick with the manual.
5
WDSRCR
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WDSRCR 4/29/2021 10:42am
4/29/2021 10:42am
Zycki11 wrote:
DO NOT GO OFF OF THE SIGHT GLASS. Stick with the manual.
Thanks. Any insight as to why, when following the manual specifically, the oil barely reads on the sight glass?

Zycki11
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Zycki11 4/29/2021 10:50am
4/29/2021 10:50am
Zycki11 wrote:
DO NOT GO OFF OF THE SIGHT GLASS. Stick with the manual.
WDSRCR wrote:
Thanks. Any insight as to why, when following the manual specifically, the oil barely reads on the sight glass?

The manual has a specific amount to not over and or under fill the engine. The sight glass can’t take into equation oil when the bike is warm vs. cold. It’s the dumbest thing to have a sight glass on a bike.
1
mxryan25
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mxryan25 4/29/2021 12:14pm
4/29/2021 12:14pm
Are you guys doing as the manual says ? Put in the specified amount of oil, let the bike idle for a few minutes, then shut off wait a few minutes and check sight glass level with bike on level ground. I follow the manual and it is about spot on, sometimes add an extra 50cc but never more
1
MotoChris
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MotoChris 4/29/2021 5:28pm
4/29/2021 5:28pm
There is the variable of how much oil you are actually draining. I warm the bike up to make the oil thinner and drain better. I also tilt the bike side to side front to back to get as much out as possible and I wipe the oil out of the filter housing. I figured that is more thorough than the manual accounted for so I use the sight glass as a consistent measurable. The manual does state that the oil level should be near the middle of the sight glass.
1
kNewc
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kNewc 4/30/2021 4:33am
4/30/2021 4:33am Edited Date/Time 4/30/2021 4:33am
mxryan25 wrote:
Are you guys doing as the manual says ? Put in the specified amount of oil, let the bike idle for a few minutes, then shut...
Are you guys doing as the manual says ? Put in the specified amount of oil, let the bike idle for a few minutes, then shut off wait a few minutes and check sight glass level with bike on level ground. I follow the manual and it is about spot on, sometimes add an extra 50cc but never more
I added the 1000cc started it up and it wasn't in the sight glass. So I added another 250 and let it run and came back and the oil was in the middle. Weird! I didn't pre-fill my oil filter last time though do you pre-fill it with oil?
1
fourfourone
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fourfourone 4/30/2021 5:20am
4/30/2021 5:20am
My 15 was the same way. ALWAYS measure. The sight glasses are terrible on these bikes. So many people over fill them trying to get the oil in the middle of the sight glass.
1
WDSRCR
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WDSRCR 4/30/2021 5:44am
4/30/2021 5:44am
fourfourone wrote:
My 15 was the same way. ALWAYS measure. The sight glasses are terrible on these bikes. So many people over fill them trying to get the...
My 15 was the same way. ALWAYS measure. The sight glasses are terrible on these bikes. So many people over fill them trying to get the oil in the middle of the sight glass.
I'm going to drain mine tonight and measure the amount I get out. I typically will run the bike easily around the yard a couple minutes to warm it up and then drain.

I have some extra filters as well so I may do a full oil/filter change and try to measure the exact amount I get out of it before adding. I'm curious now.... LOL
kNewc
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kNewc 4/30/2021 6:08am
4/30/2021 6:08am Edited Date/Time 4/30/2021 6:10am
fourfourone wrote:
My 15 was the same way. ALWAYS measure. The sight glasses are terrible on these bikes. So many people over fill them trying to get the...
My 15 was the same way. ALWAYS measure. The sight glasses are terrible on these bikes. So many people over fill them trying to get the oil in the middle of the sight glass.
WDSRCR wrote:
I'm going to drain mine tonight and measure the amount I get out. I typically will run the bike easily around the yard a couple minutes...
I'm going to drain mine tonight and measure the amount I get out. I typically will run the bike easily around the yard a couple minutes to warm it up and then drain.

I have some extra filters as well so I may do a full oil/filter change and try to measure the exact amount I get out of it before adding. I'm curious now.... LOL
The manual explicitly states to have it between the low and high line on the sight glass. It would freak me the hell out if I couldn't see oil in that thing, but apparently people add the 1000cc and go with it...I'll go by the sight glass for piece of mind I guess. Have since the 90's when I was in elementary school lmao
2
yz133rider
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yz133rider 4/30/2021 6:39am
4/30/2021 6:39am
fourfourone wrote:
My 15 was the same way. ALWAYS measure. The sight glasses are terrible on these bikes. So many people over fill them trying to get the...
My 15 was the same way. ALWAYS measure. The sight glasses are terrible on these bikes. So many people over fill them trying to get the oil in the middle of the sight glass.
WDSRCR wrote:
I'm going to drain mine tonight and measure the amount I get out. I typically will run the bike easily around the yard a couple minutes...
I'm going to drain mine tonight and measure the amount I get out. I typically will run the bike easily around the yard a couple minutes to warm it up and then drain.

I have some extra filters as well so I may do a full oil/filter change and try to measure the exact amount I get out of it before adding. I'm curious now.... LOL
kNewc wrote:
The manual explicitly states to have it between the low and high line on the sight glass. It would freak me the hell out if I...
The manual explicitly states to have it between the low and high line on the sight glass. It would freak me the hell out if I couldn't see oil in that thing, but apparently people add the 1000cc and go with it...I'll go by the sight glass for piece of mind I guess. Have since the 90's when I was in elementary school lmao
Overfilling it - worst that happens is it’ll blow it out through the breather. Under fill it and it has less oil to keep everything cool and carry the clutch material in.

I’ll err on the side of over full.
3

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