I wouldn't recommend removing the airbox lid without fuel controller changes, like using an EJK. They are already very lean from the factory, opening the airbox will make it moreso
Iv done 3 of these, 2 with tuner/pipe and my latest one with just air snorkel removed. The spark plug never got lean on that one, ran darker rich on the tuners. Its just a myth everyone keeps repeating. If u want to find out, check your own spark plug
It's not a myth. It's not getting crazy lean, but still it's getting 6-8% more lean in open loop with snorkel off. That's according to Dyno and AFR measurements.
@@d1amanwhen it goes into close loop, the AFR sensor can adjust the ratio. EJK tuner disables the AFR sensor. I think over all, it's better not to mess with factory fuel mapping
@@David-lq2xg ejk doesn't disable oxygen sensor unless you unplug it (which I don't recommend). If you don't unplug it, ejk then only amends open loop operations like full throttle or idle.
Take off the air box lid and throw it away. Take a look at any MX bike airbox and you will understand why. And no it will not lean out your bike and burn the piston. Only a bench racer will tell you that. Your EFI will compensate on it's own. I just bought a 2025 KLX300 to go along with my plated 21 WR450F. The first thing I'm doing is putting on a FMF Powercore and chucking the air box lid. I'll let you know if I burn a piston.
Cool cheap mods. And I like cheap. Anyhow, do those mods void the warranty? I am guessing you bought that bike new. Did you have to take it to the dealer for a xxxxxx mile checkup? Thank you.
Cool video. To the point, well done. I am gonna purchase a klx300r next week. Do you have a skid plate on that bike, and where did you get it? Thanks; Tony.
I have the 2022 model and I installed a pro circuit t6 slip on it sounds great good compression and all..but my header pipe is stock and it glows red like bad is there anything I can do to fix that? Besides getting a aftermarket header
You will need to buy a programmer to richen up the air and fuel mixture. That will bring your combustion chamber temp down and should inturn stop your exhaust header from glowing red. Check out the last video I just posted. I haven’t bought a programmer yet but plan on it. A little info in that video that may help you. Stay safe out there!
I also have a 22 the dual sport version, and mine does the same thing. I have the EJK Tuner, Delkavic slip-on and the KDX snorkel. I was wondering if you can explain a specific adjustment I can make to the tuner that will remedy that issue? I obviously know nothing about the tuner but I called them and the person I spoke to said it's more or less a plug n play mod. I've been told otherwise so any pointers you can suggest would be greatly appreciated. Thanks in advance.
Yes thank you for pointing that out. I’m more of a motocross and trail kind of person. I’m not much for the big mud holes or deep water crossings. Happy riding!
I've seen some replacement snorkels that let more air in, would this be a good option if I ride a lot in water crossings in your opinion? 50$ is still cheap if it protects my bike more than just removing it...
@@francistetrault7740yes, it would be better than nothing as the snorkel is put there for a reason. Even if you are washing your bike, you can saturate the air filter if you don't have a snorkel.
@@armzforte23no the opposite the Motor will run leaner. Also not using enough oil on the air filter can also upset the fuel mixture and make it run leaner. Any modification to the airbox or exhaust system will need carburettor fuel mixture tune either by the fuel mixture screw or the main jet being modified. In the case of this model Kawasaki with electronic fuel metering you will need a EJK otherwise you may overheat the engine or burn the exhaust valves.
I wouldn't recommend removing the airbox lid without fuel controller changes, like using an EJK. They are already very lean from the factory, opening the airbox will make it moreso
Iv done 3 of these, 2 with tuner/pipe and my latest one with just air snorkel removed. The spark plug never got lean on that one, ran darker rich on the tuners. Its just a myth everyone keeps repeating. If u want to find out, check your own spark plug
It's not a myth. It's not getting crazy lean, but still it's getting 6-8% more lean in open loop with snorkel off. That's according to Dyno and AFR measurements.
They make a pair valve block off plate so you would not even know it had one
@@d1amanwhen it goes into close loop, the AFR sensor can adjust the ratio. EJK tuner disables the AFR sensor. I think over all, it's better not to mess with factory fuel mapping
@@David-lq2xg ejk doesn't disable oxygen sensor unless you unplug it (which I don't recommend). If you don't unplug it, ejk then only amends open loop operations like full throttle or idle.
Take off the air box lid and throw it away. Take a look at any MX bike airbox and you will understand why. And no it will not lean out your bike and burn the piston. Only a bench racer will tell you that. Your EFI will compensate on it's own. I just bought a 2025 KLX300 to go along with my plated 21 WR450F. The first thing I'm doing is putting on a FMF Powercore and chucking the air box lid. I'll let you know if I burn a piston.
Picking up mine on Saturday. Thanks for the pro tips! Do you notice any real problems after the mods? Thanks
How do you like the bike? Getting mine tomorrow morning.
Cool cheap mods. And I like cheap. Anyhow, do those mods void the warranty? I am guessing you bought that bike new. Did you have to take it to the dealer for a xxxxxx mile checkup?
Thank you.
Cool video. To the point, well done. I am gonna purchase a klx300r next week. Do you have a skid plate on that bike, and where did you get it?
Thanks;
Tony.
I have the 2022 model and I installed a pro circuit t6 slip on it sounds great good compression and all..but my header pipe is stock and it glows red like bad is there anything I can do to fix that? Besides getting a aftermarket header
You will need to buy a programmer to richen up the air and fuel mixture. That will bring your combustion chamber temp down and should inturn stop your exhaust header from glowing red. Check out the last video I just posted. I haven’t bought a programmer yet but plan on it. A little info in that video that may help you. Stay safe out there!
I also have a 22 the dual sport version, and mine does the same thing. I have the EJK Tuner, Delkavic slip-on and the KDX snorkel. I was wondering if you can explain a specific adjustment I can make to the tuner that will remedy that issue? I obviously know nothing about the tuner but I called them and the person I spoke to said it's more or less a plug n play mod. I've been told otherwise so any pointers you can suggest would be greatly appreciated. Thanks in advance.
Yes, but keep this in mind if you hit some deep water at speed your engine will be toast.
Yes thank you for pointing that out. I’m more of a motocross and trail kind of person. I’m not much for the big mud holes or deep water crossings. Happy riding!
I've seen some replacement snorkels that let more air in, would this be a good option if I ride a lot in water crossings in your opinion? 50$ is still cheap if it protects my bike more than just removing it...
@@francistetrault7740yes, it would be better than nothing as the snorkel is put there for a reason. Even if you are washing your bike, you can saturate the air filter if you don't have a snorkel.
Wouldn't it be too rich to run it without the snorkel?
@@armzforte23no the opposite the Motor will run leaner. Also not using enough oil on the air filter can also upset the fuel mixture and make it run leaner. Any modification to the airbox or exhaust system will need carburettor fuel mixture tune either by the fuel mixture screw or the main jet being modified. In the case of this model Kawasaki with electronic fuel metering you will need a EJK otherwise you may overheat the engine or burn the exhaust valves.
You don't need to grease it they have a good enough seal just oiled and held on with the bolt