Pro Circuit exhaust and Dynojet jetkit on the Dyno Testing with and without the spark arrestor Testing without the airbox snorkel and lid off Dyno reviews at the end of the video
So it looks like updating the air box so it breathes better give almost as much boost in performance as the pipe during mid range where these bikes are ridden most. Thus adding a jet kit and opening up the air box would be a low cost boost in performance over a $400 pipe. Have you looked at trying a larger carb? Thanks for putting this data out.
amazing info you are putting out, very thankful. We have the same bike, trying out the Sigma jet kit. Any updates on the best setup as far as jet size, air box lid, fuel mixture screw turns, needle clip... stuff like that? thanks
With lid removed I drilled out the main jet to a 106. Worked well but don't plan on running the bike that way. This bike seems to need a bigger pilot jet and have one on order. Not enough adjustment on the air screw.
Did you dyno with the stock knobby on? This can give massive difference, sometimes up to %50 less, this bike is probably closer to 15hp. Also would like to know what torque numbers you got?
@@jadynschaller8571 ok thanks bc i have a ssr pit bike rn bc i am a beginner and i want a kx once i learn how to ride and i figured a 140 would be a good upgrade
Interesting. I have 2021 klx140l. I’ve drilled a bunch of small holes in the air box, put a big gun exhaust. Which is way to loud and sounds awful, I have a 100 main and 42 pilot and have changed the air mixture up. It runs way better than stock. But I cannot stand the exhaust note. It’s sounds awful, loud and cheap
joel if you guys dont like the noise on your big gun system sway you a oem 20 and some cash so you can try a different one . hope the had is starting out good
Rocky Mountain atv they got every dirtbike part you can think of. But a frame would be a steep 4-8 months shipping. With machining it. Then shipping it.
@@dustywheelz7854 by far the best mod I did on my kids klx140 was the forks. Completely changed the feel of the bike. No more wallowing feel and is much more precise, not to mention the actual suspension travel gains.
@@dustywheelz7854 I just looked up the Honda crf 150 it claims 22.5 which to me matches the cc better than the klx 140 the kaw to me is grossly under powered even for just trail riding
@@Coyotethumper5 Definitely depends on what you are looking for. This is my daughters first bike and it is great for her. It is geared like a tractor so easy to start off on and climbs anything. I can jump on it and have a blast also but I am definitely stretching the throttle cable! I plan on doing the big bore kit and head shortly.
By far the best and most informitive exhaust video of the klx140 and the jetting specs. GREAT JOB
nice!!!! we love our 20 klx . hope your day is going good #livetoride
Where did you find the seat cover
Kawasaki dirtbikes #1
So it looks like updating the air box so it breathes better give almost as much boost in performance as the pipe during mid range where these bikes are ridden most. Thus adding a jet kit and opening up the air box would be a low cost boost in performance over a $400 pipe. Have you looked at trying a larger carb? Thanks for putting this data out.
I have not. My daughter is not using all the power this bike has as is. Will go down that road once she starts ringing it's neck!
amazing info you are putting out, very thankful. We have the same bike, trying out the Sigma jet kit. Any updates on the best setup as far as jet size, air box lid, fuel mixture screw turns, needle clip... stuff like that? thanks
With lid removed I drilled out the main jet to a 106. Worked well but don't plan on running the bike that way. This bike seems to need a bigger pilot jet and have one on order. Not enough adjustment on the air screw.
I tried the 40 pilot jet and it was too rich. Ended up going back to the stock 38. Airscrew is at 3/4 turn
Did you dyno with the stock knobby on? This can give massive difference, sometimes up to %50 less, this bike is probably closer to 15hp. Also would like to know what torque numbers you got?
Stock knobby. Usually on these lower HP bikes you will only see about 1hp difference to a street tire.
I have a 2017 with those same graphic
I wish I had access to a dyno. I would like to see a dyno with a different carb.
ok so i’m around 5 feet and 4 inches do u think i would fit this bike or no bc i tried looking it up if i could but it wouldn’t let me
definitely
@@jadynschaller8571 ok thanks bc i have a ssr pit bike rn bc i am a beginner and i want a kx once i learn how to ride and i figured a 140 would be a good upgrade
Interesting. I have 2021 klx140l. I’ve drilled a bunch of small holes in the air box, put a big gun exhaust. Which is way to loud and sounds awful, I have a 100 main and 42 pilot and have changed the air mixture up. It runs way better than stock. But I cannot stand the exhaust note. It’s sounds awful, loud and cheap
joel if you guys dont like the noise on your big gun system sway you a oem 20 and some cash so you can try a different one . hope the had is starting out good
Where did you find the graphics kit for that one
Ebay
Does lectron make a carb for this bike
Not sure. With a stock engine I don't see the benefit of it. If you were to increase engine displacement and flow it would be worth looking into.
hell a grom is making more then that lol
Anyone know where you can get plastics for this bike
The plastic shop
I need a KLX frame, where can I get it
Rocky Mountain atv they got every dirtbike part you can think of. But a frame would be a steep 4-8 months shipping. With machining it. Then shipping it.
Kawasaki dealer or Ebay thats it. You tweaked it?? Whoa.
Where did you get the raised seat at?
moto seat
@@jadynschaller8571 where
motoseat.com/
@@jadynschaller8571 I’ve got a tall seat from moto seat as well and it really opened up the rider triangle
Where did you get the exhaust
Straight from Pro Circuit.
@@dustywheelz7854 did you order online?
@@henry20o82 No, I happened to be driving by their facility and stopped in and they had it in stock.
Have you looked into the kx85 fork swat?
Something I am thinking about doing for sure.
@@dustywheelz7854 by far the best mod I did on my kids klx140 was the forks. Completely changed the feel of the bike. No more wallowing feel and is much more precise, not to mention the actual suspension travel gains.
@@Bedrock80 Did you do the KX80 fork swap?
@@dustywheelz7854 kx85 forks, yes.
@@Bedrock80 Want to do that also. Need to find some!
Or are the 2021 model's efi
2021 are not efi. I just purchased; it's carb'ed.
Everybody keeps failing to tell what year the bike is.... wow
It's in the first 10 seconds of the video ! 🙄
Is that correct less than 10 hp
Sadly, Yes!
@@dustywheelz7854 I just looked up the Honda crf 150 it claims 22.5 which to me matches the cc better than the klx 140 the kaw to me is grossly under powered even for just trail riding
@@Coyotethumper5 Definitely depends on what you are looking for. This is my daughters first bike and it is great for her. It is geared like a tractor so easy to start off on and climbs anything. I can jump on it and have a blast also but I am definitely stretching the throttle cable! I plan on doing the big bore kit and head shortly.
@@dustywheelz7854 my friend got the kaw for his girlfriend it’s her first bike so I agree with you it’s a great starter bike.
you have a beautiful daughter
My push mower has more HP than this thing