You can take the cam chain tensioner off and have access. I have done it. This is a great video. Thanks for sharing.

Its done that way so it doesn't dammage the motor from kick back. Kick back can brake the cases or the starter. No throttle when starting. Alsos the gears at the one way clutch thad it rides on and against need to be replaced when doing the 1 way they are where items.

It sounds like a few folks are having the same problem I am but I haven't heard an answer to the question of "could this also be the reduction gear or starter clutch etc.?" What I am referring to is this - Problem: when the engine is hot, even though after having run perfectly, and after having started just fine cold (and many other times after that during a ride day) suddenly - the starter won't turn the engine over AND the engine is super hard to kick over and won't start because it's impossible to turn the engine over fast enough - because there is a drag on the motor - like the starter won't disengage or something. Another way to describe it is it feels like you're trying to kick it over with it in gear with the clutch out - even though the bike is in neutral. The only way I could get the bike to run again was on a steep downhill - in neutral (too much resistance to gain enough momentum if in gear even though the clutch is in). Once in neutral and plenty of momentum, pop it into gear and drop the clutch (ie bump start it) and it will overcome the resistance, start up - and run perfectly again. Before I just start tearing down and replacing parts has anyone experienced this and does anyone know what is causing the resistance? Again, could it be the reduction gear, is there some centrifugal bearing? could it be the starter clutch, or is it just THE clutch? Any help would be appreciated before I just start tearing it down and replacing parts. I've had to fix/replace just about everything else on this beast - couldn't agree more, my almost 20 year old KTM RFS engine dirt bikes have been way more reliable and problem free - and my 300 2-stroke - the best of them all. I have so much into this CRF at this point I need to fix it - even if I decide to sell it (don't want to sell it with the problem even though I easily could because for some reason it doesn't happen until after I'm deep into a hard day of hot weather riding.)

I replaced the reduction gear on mine, but it didn't solve the problem. (Though my gear had some wear on it, so may have contributed to my problem.) I also had to replace the "ONE-WAY CLUTCH" bearing. (Part #28125-MEY-671). It's easy to do when you already have the case open.

The Kick start and E-start are two seperate systems. The slipping reduction gear will prevent the E-Starter from turning over the engine consistently. The starter motor is spinning, BUT the engine is not turning over very well. I TIG welded my reduction gear and have not had That problem again.... NOW, The one-way clutch OR Sprag Clutch can be be two different symptoms. 1. IF the E-starter sounds like it is being spun when Kick-starting, That means the one-way is 'Locked'. I find that if I get the engine started the one-way will usually 'Unlock' itself until I try to kick start the bike and it 'Kicks back' or back-fires... Then the one-way seems to get 'Locked-up' again.

*** HONDA JUST RELEASED A BULLETIN *** Like many others I just experienced this problem a few weeks ago. I have a 2020 CRF450X with ONLY 100 miles. Bike pretty much left me stranded would not start, long story took it to Honda dealership. They quoted me over $700 because not only did my reduction gear go out, it caused damaged to other parts (sorry not a mechanic dude so not sure all the name of the other parts). Anyway Honda did not want to cover the cost, so I agreed to pay out of pocket, turns out while my dirt bike was there waiting for parts another pretty much brand new dirtbike came if for the same problem. The Honda dealership worked with Honda, and Honda agreed to repair both bikes at no cost. Although I am relieved they did so, I was about to pay out of pocket had that other bike not come in. Honda knows this is a problem and they should right away start sending recalls instead of customers going thorough what I went through.

Thanks for the tip . I have the same issue 😕

Excellent show Mason!

The reduction gear should be one piece machined hardened steel. Honda is going down the drain in quality with there new stuff being made in Taiwan and China.

Hey man, I have. 2022 450RL. What is the best starter reduction gear and starter clutch for me to get?

Great video, thanks for sharing your knowledge!

Hey, Does anyone know where to buy reduction gear for 250X? I've read all the comments and searched all the internet but found only 450X parts :(

3:00 Can you spot weld it before it causes trouble? 20 seconds later,,,,,'',they make one with a keyway'', yeah I would get that before it starts acting up..

My starter trun when i try to kick start my back it a 06 crf250x

My starter wouldn’t crank be because cause of a bad stator

Hey great video, the link to the aftermarket part is not working anymore and I am in need of it! Do you have a current link? Thanks man

Does this make the bike Hart to kick start to I have had my valves clearance don't too but we still can't fing the problem it's electronic Start to

This has nothing to do with starter but when its winter my bike runs fine but when it gets hot outside after a little bit of riding it just starts to bog down and I have to let it cool off for atleast 5 mins but it only does this when hot outside any clue what may be wrong? Crf250x

My 2009 250x starts perfectly when cold, but once the bike gets hot riding slow PNW gnar, the starter barely turns over - like a dead battery. I installed a new Yuasa battery, but no change. Can this be caused by those gears you showed? Or simply an old starter motor that needs replacing? Appreciate your thoughts

I have a 2020 450r with what I think is the same problem

Hey Bud, I got a 22crf450rx and it starts, but it's really loud when it's turning over. I put an aftermarket starter on it (1st mistake) and it was still loud. Put a Honda reduction gear on it and it's still loud. Then the teeth on the crappy starter literally wore off the first day and then the starter was free spinning. Put the original starter back on and now I'm back to the original loud high pitch noise when it turns over. Starts fine just loud as hell, especially when it's cold. Got any direction you can point me in.

Same thing used to happen on the old ascot thumpers.

Great vid

Do you know after how many hours this is happening?

I have a 2020 crf 450 r and the starter spins foe just a second but then stops. But if I jump across the starter sylinoid it turns the motor over. I replaced the shlinoid you think the gear is bad?

I did this to my 250x and my bike still turns over forever and still dosent start

I appreciate the video helped me find my problem can you send me another link for that aftermarket starter reduction gear. I click on your link and it doesn’t pop up.

Eu tenho aqui no brasil está sem centelha na vela

Please make a video of exactly how you download it!

R these problems the same on a 2017 150

Would you recommend a crf450x? Im looking into buying a 2007 model with 80 hours.

Is there another supplier for this starter reduction gear? It looks like Ideal Engine Parts Co. no longer sells this.

At least it has a kick start too

Hi mate I’m a little confused about my crf450 2017 my starter clutch isn’t engaging with my clutch everything spins apart from my clutch basket

I am having this issue with a 2020 CRF 450r but I am unable to find the aftermarket part. Can someone please help? Is there a way to modify the oem part by welding together

I'm having a e-start problem on my 2013 CRF250X. What is the part number on the aftermarket starter reduction gear? I can't find it anywhere. Thank you.

I got crf250x. Put a new battery -starter relay clicks - so I put new brush kit in starter motor - put back together same So I took it back off - the new brush kit makes starter feel tight .. has Skme tension when spinning by hand - I have to have it tested but do you have an suggestions - should I juts get a new starter while it’s apart

2022 CRF250RX bike will crank but sounds like no fire, kill switch will not flash blue only orange (red).....

what's the symptom for the things you describe? My starter spins but doesn't grab. Should I open it up ?

Does this cover an issue I have with the crf250x? I have a 2004 crf 250x and I can kick it over but when im in the trail I like to use the electric start. My problem is that on my bike I have to sit holding the electric start for what feels like forever but my friend who has the sane bike but has his rebuilt starts up by just tapping the e-start when the bike is warmed up.

my 06 250x likes to make a little rattle noise when its cold and is at idle, when it warms up it doesnt do it. looked around and people said the starter clutch. what would you think it would be? also my kickstart seems to turn the starter as well when it try to use it sometimes. what would be the issue for that? thanks in advanced.

Hey do you know if they fixed this in the 2020 model, mine starts fine but sounds really rough and grinding

Hi! Please tell me if it is possible to remove the electric starter without removing the cylinder on the CRF250x?

Could you share an updated link for that oem part again please, current link is broken on ebay.

hey dude... listen you seem to know your stuff with these hondas and i wondered if you could help me out? my bike is actually an R complete bike with an x engine purely for the starter motor. now it kicks first time every time and runs like a dream perfect bike. fresh build top and bottom and carb inc the midgasket. jd fuel screw boyseen quickshot 2 etc. no matter what i do it simply will not spark when i use the button. ive wired a bettery starter relay button clutch switch trailtech upgraded stator and rectifier everything does what it should exactly the way i want it too other then no matter what i do it will not start on the button.. it turns great, at a real good speed or so you would think like it sounds faster then any of my pals bikes that are the same but no spark. now if i kick it with the button pressed it sparks and starts as soon as i kick. if the plug is out it sparks all day long so its like its not turning fast enough but it really sounds like it is. and ive had other honda 250xs the same year 08 start theres next to mine and if anything its faster then theres so i believe there is something wrong. have you any suggestions?

My 450L just decided it doesn't wanna start in gear. Was pretty shitty downshifting and stalling then I couldn't fire it up in gear. Think its the same problem?

how did it hold up? just ordered mine a couple days ago for my 450er

Thought you can’t buy 2 Strokes anymore otherwise I would have bought one!!

Hello I have 09' x and the electric start run, but the engine don't, sometimes takes a lot of time and start, I was using just the kick starter. What can be the problem? Thanks

what happens to the bike?if that is the issue?

1300km and its fucked !