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Hi guys!
recently purchased a brand new 2021 Ninja 650L(limited, Australia, we have power / weight ratio restriction) previously had a 250 i used to practice on.

i was wondering, what is the process in un-restricting these? given i get off my restrictions in a few months and i dont really want to trade it in for a standard 650 and pay an extra (roughly 3k + trade in $ ) if its a simple change.

i know previously (2016-ish) the restriction was a throttle stop and an ECU loop back plug under the seat, where you would just remove and all is good.

however on this 650L i can only find the throttle stop, no ECU loop back, i did see two plugs going into the chassis under the seat (not sure what this is for)
does anyone know if the ECU needs to be remapped or if there is a simple way to get this de-restricted.

thanks!
 

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Hi guys!
recently purchased a brand new 2021 Ninja 650L(limited, Australia, we have power / weight ratio restriction) previously had a 250 i used to practice on.

i was wondering, what is the process in un-restricting these? given i get off my restrictions in a few months and i dont really want to trade it in for a standard 650 and pay an extra (roughly 3k + trade in $ ) if its a simple change.

i know previously (2016-ish) the restriction was a throttle stop and an ECU loop back plug under the seat, where you would just remove and all is good.

however on this 650L i can only find the throttle stop, no ECU loop back, i did see two plugs going into the chassis under the seat (not sure what this is for)
does anyone know if the ECU needs to be remapped or if there is a simple way to get this de-restricted.

thanks!
Did you figure this out? I just got a 2017 and after ordering exhaust with headers I got an email from the company saying this bike will run lean from the factory. He said the exhaust will make it a little more also, they offered a remapping thru them for $500.00. After cursing with my fingers typing all caps I thought screw, I’m gonna install the exhaust anyway so I might as well figure out if he’s right. I have not messed with anything yet and just doing research. I found you and thought maybe you have figured it out. Not much about this bike out there. The engine seems weaker than other 600/650 bikes, never had a kawa! What I found was the BOOSTER CABLE and others like PAZAZZ OR PAZAAZ. Great reviews and plug n play with maps already there. What do you think? Where is idle screw? Is there a loop plug like 2016 models?
thanks
 

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Hi guys!
recently purchased a brand new 2021 Ninja 650L(limited, Australia, we have power / weight ratio restriction) previously had a 250 i used to practice on.

i was wondering, what is the process in un-restricting these? given i get off my restrictions in a few months and i dont really want to trade it in for a standard 650 and pay an extra (roughly 3k + trade in $ ) if its a simple change.

i know previously (2016-ish) the restriction was a throttle stop and an ECU loop back plug under the seat, where you would just remove and all is good.

however on this 650L i can only find the throttle stop, no ECU loop back, i did see two plugs going into the chassis under the seat (not sure what this is for)
does anyone know if the ECU needs to be remapped or if there is a simple way to get this de-restricted.

thanks!
Keen to know also mate, have the 2022 650L.

Any joy, how did you sort the derestricting?
 

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For deristricting your 2021 z650 you have only to remap your ECU!
The deristricting is avaible from your KAWASAKI-dealer, it cost
in europe near 140 EURO.
So ask your Kawaski-dealer for deristricting to remap the ECU
with the unristricting software for full power, 68,2 HPs.
You have no other chance, also you don´t need to buy
a other bike...
 

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Keen to know also mate, have the 2022 650L.

Any joy, how did you sort the derestricting?
I'm in Australia, and have have the 2020 model. From my understanding there is no ECU restrictions on the Oz models. Only the Torx screw on the throttle plate which physically limits the throttle travel. I took my off (60 second job) and the bike is in full power! Simple.
 

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if you take out the throttle stop in the throttle body it will make it full power that's the only restriction on the Kawasaki's they don't restrict the ecu
Are you positive? I took out the throttle stop and certainly more power mid speed with the full throttle play..I've the same 2022L you have.
Haven't tried max speed again as yet as need to do a trip to test. Was getting around 160km restricted, although didn't hold for long and top speed was likely still slowly creeping. Keeping in mind we're expecting a top speed of 210kmph (130mph) unrestricted.
 

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Are you positive? I took out the throttle stop and certainly more power mid speed with the full throttle play..I've the same 2022L you have.
Haven't tried max speed again as yet as need to do a trip to test. Was getting around 160km unrestricted, although didn't hold for long and top speed was likely still slowly creeping. Keeping in mind we're expecting a top speed of 210kmph (130mph) unrestricted.
yes absolutely i have a k and m high performance air filter and full race exhaust also and i hold my own with the boys on bigger bikes lol
 

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Was getting around 160km restricted, although didn't hold for long and top speed was likely still slowly creeping. Keeping in mind we're expecting a top speed of 210kmph (130mph) unrestricted.
187km/h with a restricted LAMS bike and some luggage. I held it wide open for a couple of minutes though. Haven't tried again since taking the throttle restrictor off.
 

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187km/h with a restricted LAMS bike and some luggage. I held it wide open for a couple of minutes though. Haven't tried again since taking the throttle restrictor off.
Let us know what you get with the throttle restrictor off 😉
haven't had an opportunity to try myself. A little surprised you hit 187kmh with it on, though hadn't held it for minutes so.
 

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I’m a bit surprised about everyone worrying about their top speed. How often can you use that? The reason I derestricted mine was simply for more power under acceleration, and the difference was huge.
I agree with that and appreciated the same beenfit. They'd mentioned pushing it for minutes at top speed and we are intetested if removing the throttle lock was the only restriction. That's why we asked mate!
 

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I'm in Australia, and have have the 2020 model. From my understanding there is no ECU restrictions on the Oz models. Only the Torx screw on the throttle plate which physically limits the throttle travel. I took my off (60 second job) and the bike is in full power! Simple.
Perfect - I got the Z650RS and thats what Im going to do when Im off my P's - good to know its only the throttle restriction here in Aus - Cheers!
 

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I'm in Australia, and have have the 2020 model. From my understanding there is no ECU restrictions on the Oz models. Only the Torx screw on the throttle plate which physically limits the throttle travel. I took my off (60 second job) and the bike is in full power! Simple.
Hi I’m also looking into the same thing with my 2022 z650L. There is a YouTube post from Dynobike, he says as well as the removal of the torx screw there is also another restriction that is the secondary throttle plates controlled by the ECU which requires a flash tune to open them up. Removing the screw alone, he says, will remove the restriction on the throttle but will affect the low speed ride negatively. Getting this done with the remap will cost around 800-900 $. Would you like to share your thoughts on this?
 

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Hi I’m also looking into the same thing with my 2022 z650L. There is a YouTube post from Dynobike, he says as well as the removal of the torx screw there is also another restriction that is the secondary throttle plates controlled by the ECU which requires a flash tune to open them up. Removing the screw alone, he says, will remove the restriction on the throttle but will affect the low speed ride negatively. Getting this done with the remap will cost around 800-900 $. Would you like to share your thoughts on this?
The Torx screw in question physically stops the throttle from been wound out to the full, so I fail to see how this could possible have any effect on the low speed ride. In saying that, I fitted a Booster Plug as I have found the low speed throttle action jerky, but it was the same before I took the throttle restriction off. You can go down the route of removing the secondary plates if you want, but I think that's partly to create sales for the tune shops, as you then will need a flash tune as you stated, I have found simply taking out the screw makes a HUGE difference,without any need for a flash. It would make sense if you were fitting an after market exhaust, but I prefer to keep mine standard, and not play around with the ECU. The Booster Plug also made a marked improvement btw. Not perfect, but much better. So in summary, I personally don't believe your 800 - 900$ would be good value, when removing the screw costs nothing.
 

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The Torx screw in question physically stops the throttle from been wound out to the full, so I fail to see how this could possible have any effect on the low speed ride. In saying that, I fitted a Booster Plug as I have found the low speed throttle action jerky, but it was the same before I took the throttle restriction off. You can go down the route of removing the secondary plates if you want, but I think that's partly to create sales for the tune shops, as you then will need a flash tune as you stated, I have found simply taking out the screw makes a HUGE difference,without any need for a flash. It would make sense if you were fitting an after market exhaust, but I prefer to keep mine standard, and not play around with the ECU. The Booster Plug also made a marked improvement btw. Not perfect, but much better. So in summary, I personally don't believe your 800 - 900$ would be good value, when removing the screw costs nothing.
Did that booster plug make a difference? My throttle is super twitchy and I find I have to ride the clutch a lot around town to avoid the jerky acceleration.
 

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The Torx screw in question physically stops the throttle from been wound out to the full, so I fail to see how this could possible have any effect on the low speed ride. In saying that, I fitted a Booster Plug as I have found the low speed throttle action jerky, but it was the same before I took the throttle restriction off. You can go down the route of removing the secondary plates if you want, but I think that's partly to create sales for the tune shops, as you then will need a flash tune as you stated, I have found simply taking out the screw makes a HUGE difference,without any need for a flash. It would make sense if you were fitting an after market exhaust, but I prefer to keep mine standard, and not play around with the ECU. The Booster Plug also made a marked improvement btw. Not perfect, but much better. So in summary, I personally don't believe your 800 - 900$ would be good value, when removing the screw costs nothing.
Thank you, appreciate the feedback. That’s good news. I don’t know the booster plug but will look into that too.
 
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