Let's see/review those 2019 kx450s

Markopolo400
Profile picture for user Markopolo400
Posts
1428
Joined
7/24/2012
Location
St. Paul-ish, MN, USA
Markopolo400 11/22/2020 10:27am
11/22/2020 10:27am
fatpurplepanda wrote:
Well somehow three of my valve springs broke in my 19. In all my years of dirtbikes I’ve never heard of a valve spring breaking so...
Well somehow three of my valve springs broke in my 19. In all my years of dirtbikes I’ve never heard of a valve spring breaking so that’s neat
You just shred too hard probably
fatpurplepanda 11/22/2020 12:30pm
11/22/2020 12:30pm
fatpurplepanda wrote:
Well somehow three of my valve springs broke in my 19. In all my years of dirtbikes I’ve never heard of a valve spring breaking so...
Well somehow three of my valve springs broke in my 19. In all my years of dirtbikes I’ve never heard of a valve spring breaking so that’s neat
Markopolo400 wrote:
You just shred too hard probably
Oh yeah. Must be it 😅
goat745
Profile picture for user goat745
Posts
17
Joined
8/6/2020
Location
Drums, PA, USA
Fantasy
540th
goat745 11/22/2020 2:27pm
11/22/2020 2:27pm
14 hours on my 20, only issue has been a chewed up chain roller. Lock tight on all fasteners and have not had any come loose.
3
cloud41
Profile picture for user cloud41
Posts
290
Joined
8/28/2020
Location
Chicago, IL, USA
Fantasy
1622nd
cloud41 11/22/2020 3:33pm
11/22/2020 3:33pm
What’s the best muffler for this bike and why?

The Shop

See All »
fatpurplepanda 11/22/2020 3:42pm
11/22/2020 3:42pm
cloud41 wrote:
What’s the best muffler for this bike and why?
Anything that is rubber mounted (not FMF). Because it doesn’t break your subframe
2
OLDMOTO
Profile picture for user OLDMOTO
Posts
467
Joined
3/20/2019
Location
San Diego, CA, USA
OLDMOTO 11/22/2020 5:32pm
11/22/2020 5:32pm
cloud41 wrote:
What’s the best muffler for this bike and why?
I have a Procircuit stainless system, Tokyo Mods re-map and a Notoil fast flow filter. It pulls sooner, picked up power across the spread and more over-rev. Its rubber mounted. 65 hours and no broken sub-frame.
4
DB97
Profile picture for user DB97
Posts
1179
Joined
7/28/2016
Location
Orlando, FL, USA
DB97 11/25/2020 3:43am
11/25/2020 3:43am
Nate_Z wrote:
Anybody test ProCircuit's new linkage for this bike yet? Curious how it would compare to Ride Engineering...https://www.procircuit.com/kx250-450-linkage-system-19-21.html
bh wrote:
I would like to know if it is the same as the works chassis Iab linkage.
I’m sure it’s similar. I have the works chassis lab linkage and it’s supposed to do the same thing, softer initially and get more progressive.
quadzrulebro 11/25/2020 4:52am
11/25/2020 4:52am
Nate_Z wrote:
Anybody test ProCircuit's new linkage for this bike yet? Curious how it would compare to Ride Engineering...https://www.procircuit.com/kx250-450-linkage-system-19-21.html
bh wrote:
I would like to know if it is the same as the works chassis Iab linkage.
DB97 wrote:
I’m sure it’s similar. I have the works chassis lab linkage and it’s supposed to do the same thing, softer initially and get more progressive.
I don’t know. I really like the way the shock works on this bike in stock form. What problems are you guys feeling? I just changed the spring to the correct weight, and it feels pretty good to me.
1
Zeke27G
Profile picture for user Zeke27G
Posts
1408
Joined
11/8/2011
Location
Ascot Park, CA, USA
Zeke27G 11/25/2020 6:08am
11/25/2020 6:08am

Gents, I have a KXonfession...several months ago I was at Cahuilla with a friend who also has a '19 KX450. We got to talking about couplers and he had me swap the green coupler for the black coupler late in the day, after telling me that the black coupler puts out more horsepower. Probably the worst time to test as I was already getting tired. Overtime I forgot that I had made that swap and eventually realized that he had things ass backwards and it's the green coupler that makes more horsepower!! So I'm not sure who is the bigger dummy, him for telling me that, or me for listening?!! And there's no need to answer that question!! The green coupler has since been re-installed!

quadzrulebro 11/25/2020 6:13am
11/25/2020 6:13am
Zeke27G wrote:
Gents, I have a KXonfession...several months ago I was at Cahuilla with a friend who also has a '19 KX450. We got to talking about couplers...

Gents, I have a KXonfession...several months ago I was at Cahuilla with a friend who also has a '19 KX450. We got to talking about couplers and he had me swap the green coupler for the black coupler late in the day, after telling me that the black coupler puts out more horsepower. Probably the worst time to test as I was already getting tired. Overtime I forgot that I had made that swap and eventually realized that he had things ass backwards and it's the green coupler that makes more horsepower!! So I'm not sure who is the bigger dummy, him for telling me that, or me for listening?!! And there's no need to answer that question!! The green coupler has since been re-installed!

That’s funny. I actually prefer the softer hit of the black coupler. All 450s make more power than I can use, so I like the coupler that doesn’t tire me out as much and makes me faster on the white flag lap.
Nate_Z
Profile picture for user Nate_Z
Posts
209
Joined
12/9/2018
Location
Prior Lake, MN, USA
Nate_Z 11/25/2020 6:32am
11/25/2020 6:32am
bh wrote:
I would like to know if it is the same as the works chassis Iab linkage.
DB97 wrote:
I’m sure it’s similar. I have the works chassis lab linkage and it’s supposed to do the same thing, softer initially and get more progressive.
quadzrulebro wrote:
I don’t know. I really like the way the shock works on this bike in stock form. What problems are you guys feeling? I just changed...
I don’t know. I really like the way the shock works on this bike in stock form. What problems are you guys feeling? I just changed the spring to the correct weight, and it feels pretty good to me.
I share the same perspective as it seems the stock setup works pretty damn good. Is it one of these solutions in search of a problem or is there a legit benefit?
wrc777
Profile picture for user wrc777
Posts
3229
Joined
5/21/2020
Location
Greenwood, IN, USA
Fantasy
182nd
wrc777 11/25/2020 7:40am
11/25/2020 7:40am
Zeke27G wrote:
Gents, I have a KXonfession...several months ago I was at Cahuilla with a friend who also has a '19 KX450. We got to talking about couplers...

Gents, I have a KXonfession...several months ago I was at Cahuilla with a friend who also has a '19 KX450. We got to talking about couplers and he had me swap the green coupler for the black coupler late in the day, after telling me that the black coupler puts out more horsepower. Probably the worst time to test as I was already getting tired. Overtime I forgot that I had made that swap and eventually realized that he had things ass backwards and it's the green coupler that makes more horsepower!! So I'm not sure who is the bigger dummy, him for telling me that, or me for listening?!! And there's no need to answer that question!! The green coupler has since been re-installed!

quadzrulebro wrote:
That’s funny. I actually prefer the softer hit of the black coupler. All 450s make more power than I can use, so I like the coupler...
That’s funny. I actually prefer the softer hit of the black coupler. All 450s make more power than I can use, so I like the coupler that doesn’t tire me out as much and makes me faster on the white flag lap.
I like how the black rolls off idle but the mid to top on the green is cleaner and easier to control for me.
49weasel
Profile picture for user 49weasel
Posts
979
Joined
4/12/2013
Location
CANAL WINCHESTER, OH, USA
49weasel 11/25/2020 8:10am
11/25/2020 8:10am
Zeke27G wrote:
Gents, I have a KXonfession...several months ago I was at Cahuilla with a friend who also has a '19 KX450. We got to talking about couplers...

Gents, I have a KXonfession...several months ago I was at Cahuilla with a friend who also has a '19 KX450. We got to talking about couplers and he had me swap the green coupler for the black coupler late in the day, after telling me that the black coupler puts out more horsepower. Probably the worst time to test as I was already getting tired. Overtime I forgot that I had made that swap and eventually realized that he had things ass backwards and it's the green coupler that makes more horsepower!! So I'm not sure who is the bigger dummy, him for telling me that, or me for listening?!! And there's no need to answer that question!! The green coupler has since been re-installed!

quadzrulebro wrote:
That’s funny. I actually prefer the softer hit of the black coupler. All 450s make more power than I can use, so I like the coupler...
That’s funny. I actually prefer the softer hit of the black coupler. All 450s make more power than I can use, so I like the coupler that doesn’t tire me out as much and makes me faster on the white flag lap.
wrc777 wrote:
I like how the black rolls off idle but the mid to top on the green is cleaner and easier to control for me.
Unless 21 is different you guys are wrong.
quadzrulebro 11/25/2020 8:20am
11/25/2020 8:20am Edited Date/Time 11/25/2020 8:22am
quadzrulebro wrote:
That’s funny. I actually prefer the softer hit of the black coupler. All 450s make more power than I can use, so I like the coupler...
That’s funny. I actually prefer the softer hit of the black coupler. All 450s make more power than I can use, so I like the coupler that doesn’t tire me out as much and makes me faster on the white flag lap.
wrc777 wrote:
I like how the black rolls off idle but the mid to top on the green is cleaner and easier to control for me.
49weasel wrote:
Unless 21 is different you guys are wrong. [img]https://p.vitalmx.com/photos/forums/2020/11/25/461630/s1200_156A24CD_59EA_490A_86C2_9B03BB1FB912.jpg[/img]
Unless 21 is different you guys are wrong.
No. When the track is hard (or you’re +45 and trying to conserve energy for the end of the race), you need tractable and softer power. That is why I prefer the softer power delivery of the black coupler.
White coupler hits hardest (for deep soft terrain)
Green coupler is standard
Black coupler rolls on power more smoothly (for slippery hard terrain tracks)
6
Nate_Z
Profile picture for user Nate_Z
Posts
209
Joined
12/9/2018
Location
Prior Lake, MN, USA
Nate_Z 11/25/2020 8:24am
11/25/2020 8:24am
wrc777 wrote:
I like how the black rolls off idle but the mid to top on the green is cleaner and easier to control for me.
49weasel wrote:
Unless 21 is different you guys are wrong. [img]https://p.vitalmx.com/photos/forums/2020/11/25/461630/s1200_156A24CD_59EA_490A_86C2_9B03BB1FB912.jpg[/img]
Unless 21 is different you guys are wrong.
quadzrulebro wrote:
No. When the track is hard (or you’re +45 and trying to conserve energy for the end of the race), you need tractable and softer power...
No. When the track is hard (or you’re +45 and trying to conserve energy for the end of the race), you need tractable and softer power. That is why I prefer the softer power delivery of the black coupler.
White coupler hits hardest (for deep soft terrain)
Green coupler is standard
Black coupler rolls on power more smoothly (for slippery hard terrain tracks)
Quadzrulebro is correct. I also prefer the black coupler as I primarily ride woods but when I do ride moto it still has plenty of power for me!

Pit Row

See All »
49weasel
Profile picture for user 49weasel
Posts
979
Joined
4/12/2013
Location
CANAL WINCHESTER, OH, USA
49weasel 11/25/2020 8:28am
11/25/2020 8:28am
wrc777 wrote:
I like how the black rolls off idle but the mid to top on the green is cleaner and easier to control for me.
49weasel wrote:
Unless 21 is different you guys are wrong. [img]https://p.vitalmx.com/photos/forums/2020/11/25/461630/s1200_156A24CD_59EA_490A_86C2_9B03BB1FB912.jpg[/img]
Unless 21 is different you guys are wrong.
quadzrulebro wrote:
No. When the track is hard (or you’re +45 and trying to conserve energy for the end of the race), you need tractable and softer power...
No. When the track is hard (or you’re +45 and trying to conserve energy for the end of the race), you need tractable and softer power. That is why I prefer the softer power delivery of the black coupler.
White coupler hits hardest (for deep soft terrain)
Green coupler is standard
Black coupler rolls on power more smoothly (for slippery hard terrain tracks)
I apologize, I am a fucking idiot.. I was reading the track conditions as what the coupler did..
6
wrc777
Profile picture for user wrc777
Posts
3229
Joined
5/21/2020
Location
Greenwood, IN, USA
Fantasy
182nd
wrc777 11/25/2020 8:36am
11/25/2020 8:36am
Another little trick. You always have the green map available. If you unplug the coupler if defaults to green, and you don’t have to shut off the bike to switch.
1
Moto520
Profile picture for user Moto520
Posts
3656
Joined
2/4/2013
Location
Schaumburg, IL, USA
Moto520 11/25/2020 9:04am
11/25/2020 9:04am
I'm at 100 hours! I ride hard enough and still nothing has broken (except the sub-frame). I haven't touched anything in the motor with the exception of 2 clutches. I'm debating whether or not to rebuild this motor or get a new '21. With the pricing on new bikes being so high.....this might be a time that i go for it and just rebuild what i have. Think i can get to 200 hours on this thing?
stax199
Profile picture for user stax199
Posts
157
Joined
3/7/2012
Location
Brooklyn, NY, USA
Fantasy
817th
stax199 11/25/2020 10:03am
11/25/2020 10:03am
Moto520 wrote:
I'm at 100 hours! I ride hard enough and still nothing has broken (except the sub-frame). I haven't touched anything in the motor with the exception...
I'm at 100 hours! I ride hard enough and still nothing has broken (except the sub-frame). I haven't touched anything in the motor with the exception of 2 clutches. I'm debating whether or not to rebuild this motor or get a new '21. With the pricing on new bikes being so high.....this might be a time that i go for it and just rebuild what i have. Think i can get to 200 hours on this thing?
nice!! which clutch did you use to replace? Im on deck for my first clutch change at 20 hours...please let me know if you recommend one brand or type to another.
Nate_Z
Profile picture for user Nate_Z
Posts
209
Joined
12/9/2018
Location
Prior Lake, MN, USA
Nate_Z 11/25/2020 10:08am
11/25/2020 10:08am
Moto520 wrote:
I'm at 100 hours! I ride hard enough and still nothing has broken (except the sub-frame). I haven't touched anything in the motor with the exception...
I'm at 100 hours! I ride hard enough and still nothing has broken (except the sub-frame). I haven't touched anything in the motor with the exception of 2 clutches. I'm debating whether or not to rebuild this motor or get a new '21. With the pricing on new bikes being so high.....this might be a time that i go for it and just rebuild what i have. Think i can get to 200 hours on this thing?
I'm at 72 hours and bike runs perfect. Its fun to buy new bikes, but new prices are sky high. 200 hours seems reasonable, go for it!
Grovesy98
Profile picture for user Grovesy98
Posts
246
Joined
10/14/2019
Location
GB
Grovesy98 11/25/2020 10:21am
11/25/2020 10:21am
I use the black coupler also, I like the smooth initial power delivery as it helps my cornering and keeps things tidy and smooth
Nate_Z
Profile picture for user Nate_Z
Posts
209
Joined
12/9/2018
Location
Prior Lake, MN, USA
Nate_Z 11/25/2020 5:28pm
11/25/2020 5:28pm
centralcalmx wrote:
I have a new Rekluse Torque clutch pack for sell.
https://www.ebay.com/itm/264949995503
Nate_Z wrote:
Do you know if these plates are the same as what is in the Rekluse Radius CX clutch?
centralcalmx wrote:
Sorry no I don’t.
Did some looking on Rekluse's site...doesn't look like these plates work as a replacement for the Radius CX

https://rekluse.com/support/ride/?bikeId=7174

That's too bad as thats a good deal for the clutch!
50dippin
Profile picture for user 50dippin
Posts
361
Joined
10/4/2009
Location
Los Angeles, CA, USA
50dippin 11/28/2020 2:07pm
11/28/2020 2:07pm
Just had my front brake line tear while riding. front brake started to fade and then I started getting splashed with brake fluid. The triple clamp plastic brake line clamp wore through and got pretty sharp, ended up cutting a small hole into the line. Never had one of those wear out before, really weird.
1
stax199
Profile picture for user stax199
Posts
157
Joined
3/7/2012
Location
Brooklyn, NY, USA
Fantasy
817th
stax199 11/28/2020 3:10pm
11/28/2020 3:10pm
50dippin wrote:
Just had my front brake line tear while riding. front brake started to fade and then I started getting splashed with brake fluid. The triple clamp...
Just had my front brake line tear while riding. front brake started to fade and then I started getting splashed with brake fluid. The triple clamp plastic brake line clamp wore through and got pretty sharp, ended up cutting a small hole into the line. Never had one of those wear out before, really weird.
ive had kawis since 04 .. the front brake line circle thing always wears .. it is weird but it happens.

Post a reply to: Let's see/review those 2019 kx450s