I have a 19 450L and rebuilding forks now (mainly just seals) but i got the 10 weight honda fork oil. I am only 150 pounds but its a supermoto so i figured a lil heavier would be better.
Thanks for this vid. I followed your KYB fork vid as a refresher for doing the '09 YZ250F forks that I put on my '05 YZ125, and I'm about to use this video for my buddy's '23 CRF250R that has been leaking lots of oil from both fork legs for the past couple of months. I'm gonna go ahead and replace the seals and bushings for him as well. Tempted to try the ATF in the outer chamber, but all I've got is regular non-synthetic SuperTech Dex-Merc ATF. Got some Maxima 10W fork oil for the inners.
Hello. I do think regular transmission fluid will work the same. I think the biggest difference would be the smell lol. The synthetic stuff doesn't smell that strong and the regular stuff can smell like transmission fluid pretty strongly. Otherwise the properties are pretty much the same between regular and synthetic and both should work the same.
This is a really nice video! Thanks for walking us through it. Unlike you, I cannot get the fork bolt (i.e fork damper) back into fork damper tube like you did. I push down hard on the cap until the threads are close, but if relieve any downward pressure to get my wrench, it pops back up. I have pushed hard and tried many times but can't get the threads to engage Any suggestions?
Hello. Have you tried compressing the dambener assembly fully while pressing the cap down (to push all extra oil out the little holes up top). Then let the dampener rod full extend and try pushing the cap down and threading it in?
@@UpAllNight91 I followed the guidance in the manual which does what you are saying. I as able to eventually get the cap back on but man, it was difficult. I bruised my hand pushing on the cap so hard! The forks are way to stiff for me so I am going to contact a suspension expert and let them tune the forks for me. Thanks for the reply!
Got a 2020 Crf450r going to service front and rear. Pro Honda is hard to find for some reason would 5w maxima fork oil and 3w maxima shock fluid be fine to use?
Hello. Honda is now suggesting a different fluid for the forks. Its A15-00. Here is a link www.rockymountainatvmc.com/parts/pro-honda-hp-fork-oil-a15-00-p As for the shock fluid here is a link www.ebay.com/itm/295985701114 . But you can use maxima 5W for the forks and 3W for the shock and probably be just fine. You may find you may need to change a clicker or two for the different oil to feel like the original but it should be very close.
I often do. But with these forks the owner wanted ss19 in both inner and outer. But I have used ATF in the outer on my own hondas and others. It works just as well as on the KYBs
Thanks! Oh man I dont have a 2020 here to look at and cant remember but I know on my 2015 I could maybe replace them with the air box on however being they are throttle cables I would just remove the air box so I can get good access. I would want to make sure they are in good, routed well between the frame and rads, and all that.
LoL. I will as soon as a set come by that needs it done. But meanwhile I do have a KX450 fork video that are just like the ones on the honda that can get you by if you need to change some seals and bushing. Probably cant help you with the helicoil, I honestly have never even put a helicoil in lol
If you can guestimate how much fluid you lost you can replace it through the top bleeder hole. I have done it before but it does drive me craxy not knowing if I have the level correct or not. Usually prompting me to just service them as soon as I can get to it.
I have a 2020 crf450r & ive redone the forks on them like 3x but for whatever reason my forks wont rebound once they compress. ive tried different oil amounts & settings with the forks but nothing seems to work
Hmm. When your done bleeding the inner chamber and its still out and not inside the forks, does the inner chamber rebound ok on its own? Just trying to isolate the problem.
@@UpAllNight91 I think I just needed to play with the fork settings more. The guy I bought the bike from was about 170 pounds & I'm around 200 pounds so I'm gonna take it for a ride this week & see how the new settings handle
I dont think so. I mean it can sometimes have that hydraulic damper sound but what I do is listen to the inner chamber while compressing it before installing it. If it sounds good, then I know thats good. Once the fork is together usually all I hear is springs sliding across the inside of the tubes (on newer springs, olders springs get polished where that contact the tubes and can become silent after breaking in.)
I think that’s what it is. Probably the damper hydraulic sound and yes, damper sounded good after was done followed your video step-by-step although mine was a lot more of a pain in the ass to push that cartridge in after filling with fluid lol
@ dang I’m gonna have to do the rear shock a different way. I tried bleeding it the way you show in the video twisting a lot. It pushes that piston right up and throws shock fluid all over lol
@@justinbs19 Oh yeah that can happen. I have had to use a flat head to pray against the seal to keep it from sliding up on a few bikes. Is this a low hour bike?
Hi, for a honda crf 250 r 2019 how many cm3 in inside chamber and how many in outside? Service manual write 343m3 it refers only for outside chamber? Do you replace also oring and slide bush ?
The inner chamber amount is usually nothing to worry about because any extra amount in there will come out on its own during the bleeding of the inner chamber. This is probably why the manual only mentions the amount on the outer chamber. You don't have to change the o ring and bushings if they are in good shape, but it never hurts to change them out while your in there
@@askmeyicare God yes I already miss that place. I heard a rumor that someone else is already looking at it, to turn it back into a track.... fingers crossed!
I have a 19 450L and rebuilding forks now (mainly just seals) but i got the 10 weight honda fork oil. I am only 150 pounds but its a supermoto so i figured a lil heavier would be better.
sure thing. Worse case if they end up being over dampened you can always dump it out and change to thinner oil.
That is super awesome that you took the time to show everyone Itake care
Thanks! You too!
Thanks for this vid. I followed your KYB fork vid as a refresher for doing the '09 YZ250F forks that I put on my '05 YZ125, and I'm about to use this video for my buddy's '23 CRF250R that has been leaking lots of oil from both fork legs for the past couple of months. I'm gonna go ahead and replace the seals and bushings for him as well. Tempted to try the ATF in the outer chamber, but all I've got is regular non-synthetic SuperTech Dex-Merc ATF. Got some Maxima 10W fork oil for the inners.
Hello. I do think regular transmission fluid will work the same. I think the biggest difference would be the smell lol. The synthetic stuff doesn't smell that strong and the regular stuff can smell like transmission fluid pretty strongly. Otherwise the properties are pretty much the same between regular and synthetic and both should work the same.
Your vids are very informative man. THANK YOU for posting these!
Ahh thanks, and thanks for watching!
Very helpful. Thank you
Thanks! Glad to hear! Happy Thanksgiving!
5:05 the little ,,inspector" is back! 😄😄
Hahahah!
This is a really nice video! Thanks for walking us through it.
Unlike you, I cannot get the fork bolt (i.e fork damper) back into fork damper tube like you did. I push down hard on the cap until the threads are close, but if relieve any downward pressure to get my wrench, it pops back up. I have pushed hard and tried many times but can't get the threads to engage Any suggestions?
Hello. Have you tried compressing the dambener assembly fully while pressing the cap down (to push all extra oil out the little holes up top). Then let the dampener rod full extend and try pushing the cap down and threading it in?
@@UpAllNight91 I followed the guidance in the manual which does what you are saying. I as able to eventually get the cap back on but man, it was difficult. I bruised my hand pushing on the cap so hard!
The forks are way to stiff for me so I am going to contact a suspension expert and let them tune the forks for me. Thanks for the reply!
LoL. I feel ya, some of them are tough. Glad you got it though!
Are these the same on my 450L? Great video btw
Thanks! I believe so. If the top cap of the forks on the 450L looks the same as these in the video then yes.
Got a 2020 Crf450r going to service front and rear. Pro Honda is hard to find for some reason would 5w maxima fork oil and 3w maxima shock fluid be fine to use?
Hello. Honda is now suggesting a different fluid for the forks. Its A15-00. Here is a link www.rockymountainatvmc.com/parts/pro-honda-hp-fork-oil-a15-00-p
As for the shock fluid here is a link www.ebay.com/itm/295985701114 . But you can use maxima 5W for the forks and 3W for the shock and probably be just fine. You may find you may need to change a clicker or two for the different oil to feel like the original but it should be very close.
hi do you use the trans oil in the outer camber on showa forks like you did in the KYB forks?
I often do. But with these forks the owner wanted ss19 in both inner and outer. But I have used ATF in the outer on my own hondas and others. It works just as well as on the KYBs
@@UpAllNight91ga ulei in doua locuri.... ?!
@@gabibratfalean8528 Yes, inner chamber and outer chamber
Nice video,quick question on my yz450f 2020 I need to fit new throttle cables, do I need to take of the hole airbox assembly of , ? Thanks
Thanks! Oh man I dont have a 2020 here to look at and cant remember but I know on my 2015 I could maybe replace them with the air box on however being they are throttle cables I would just remove the air box so I can get good access. I would want to make sure they are in good, routed well between the frame and rads, and all that.
Lets see one where you do the bushings, seals, and springs :P
Bonus, helicoil the bottom bracket..
LoL. I will as soon as a set come by that needs it done. But meanwhile I do have a KX450 fork video that are just like the ones on the honda that can get you by if you need to change some seals and bushing. Probably cant help you with the helicoil, I honestly have never even put a helicoil in lol
Here is the link the the KX450 forks th-cam.com/video/ZJ5YUkwb8vU/w-d-xo.html
If my fork seals leaked a little bit after my last muddy race can I add a tiny bit of oil in the top to get me through til the next service?
If you can guestimate how much fluid you lost you can replace it through the top bleeder hole. I have done it before but it does drive me craxy not knowing if I have the level correct or not. Usually prompting me to just service them as soon as I can get to it.
I have a 2020 crf450r & ive redone the forks on them like 3x but for whatever reason my forks wont rebound once they compress. ive tried different oil amounts & settings with the forks but nothing seems to work
Hmm. When your done bleeding the inner chamber and its still out and not inside the forks, does the inner chamber rebound ok on its own? Just trying to isolate the problem.
@@UpAllNight91 I think I just needed to play with the fork settings more. The guy I bought the bike from was about 170 pounds & I'm around 200 pounds so I'm gonna take it for a ride this week & see how the new settings handle
@@mattwilliams6587 Right on.
Normal to hear squishy/air sound when compressing the fork by itself off the bike after doing a fluid service?
I dont think so. I mean it can sometimes have that hydraulic damper sound but what I do is listen to the inner chamber while compressing it before installing it. If it sounds good, then I know thats good. Once the fork is together usually all I hear is springs sliding across the inside of the tubes (on newer springs, olders springs get polished where that contact the tubes and can become silent after breaking in.)
I think that’s what it is. Probably the damper hydraulic sound and yes, damper sounded good after was done followed your video step-by-step although mine was a lot more of a pain in the ass to push that cartridge in after filling with fluid lol
@ dang I’m gonna have to do the rear shock a different way. I tried bleeding it the way you show in the video twisting a lot. It pushes that piston right up and throws shock fluid all over lol
@@justinbs19 Oh yeah that can happen. I have had to use a flat head to pray against the seal to keep it from sliding up on a few bikes. Is this a low hour bike?
@@UpAllNight91 70hrs
Hi, for a honda crf 250 r 2019 how many cm3 in inside chamber and how many in outside? Service manual write 343m3 it refers only for outside chamber?
Do you replace also oring and slide bush ?
The inner chamber amount is usually nothing to worry about because any extra amount in there will come out on its own during the bleeding of the inner chamber. This is probably why the manual only mentions the amount on the outer chamber. You don't have to change the o ring and bushings if they are in good shape, but it never hurts to change them out while your in there
Man I got a suspension question if you don’t mind?
Sure
Where you gonna ride on Saturday?
Looking at riding Sunday at dade city this weekend. Its open practice and the extended track. Starts at 9am. Always a good time. And you?
@@UpAllNight91 going to Moto bros Saturday. My Sundays are booked. I miss 74 :(
@@askmeyicare God yes I already miss that place. I heard a rumor that someone else is already looking at it, to turn it back into a track.... fingers crossed!
How can I bring in both my dirtbikes in for some servicing
@@danielbrinez5464 hello. You can email me at upallnight91@hotmail.com