How To Change Motorcycle Fork Seals (Shock Oil Seal Replacement)
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- Опубліковано 14 жов 2024
- Hello and welcome to the episode, today I show you how to replace the fork seals on a Honda nc750x, this covers years 2013-2016, newer models are very similar but oil volumes may vary, so please check first.
First thing you should do is loosen the 17mm top caps as shown
dont unscrew them all the way, just loosen them half a turn
now with a 5mm allen key, remove the mud guard as shown
use a 8mm socket to remove the brake hose clamp, do the same on the opposite side
carefully lift mud guard off
using a 12mm socket remove the brake calliper, rotate the disc so it lines up with the cut out to help the calliper slide out, now tie the brake calliper out the way
remove the spindle pinch bolt with a 12mm socket,
place all your bolts in pot so you don't loose them
using 17MM hex socket, loosen the wheel spindle
using a block of wood and a trolley jack, ease the pressure from the front buy placing it under the sump, you wont need to put much pressure here providing your bike is on its main stand
remove the spindle bolt, remove both spaces and keep them safe
using a 14mm socket loosen the shock pinch bolt, now loosen the top pinch bolt
carefully slide the shock out
do the same on the opposite side
using a 6mm allen key on the bottom of the shock, jolt the bolt with a quick action, just loosen half a turn for now
while applying downward pressure remove the upper cap gently,
tip out the old oil and remove parts as shown, make sure you do this on a clean surface
now clean all the parts thoroughly
gently remove the dust seal with a flat screw driver, now remove the inner oil seal retainer
unscrew the lower allen key bolt completely
now separate the shock as shown,
remove the inner spacer
now remove the old seal
clean the bushes and use some auto sol on the shock tube, do not use anything abrasive
check the shock tube for any cracks or damage and clean,
insert the spacer shown
I use some waste pipe and an exhaust clamp to install my bush and seals, this works fine and will save you money on buying a special tool
slide the tool over and clamp it in place
now tap downwards jolting the bush in place, you will hear a change in sound when its seated
using a cut up milk carton smear it with grease , fold it round the end of the shock tube making a cone shape, now gentle slid the seal on, check seal orientation before installing, slide all the way to the bottom
now use the old seal and place that on top, we will use this to drive the new seal in place, using the home-made tool nock the seal in place as shown
again you will hear a change in sound when its seated
reinstall the seal retainer, be careful not to touch the rubber seal with the screw driver
now install the dust cover and push in place
insert the fork piston as shown
clean the old screw and tighten to 20nm, use the spring to stop the piston from turning inside
fill shock with 10w oil, leaving a 101mm air gap, I used 500ml in each shock and this was spot on
work the shock up and down to remove bubbles and recheck air gap, the air gap should be measured when the tube is fully extended, here are the illustrations
now slide the spring, spring seat and collar in as sown
now install the top cap pushing downward at the same time, tighten so its flush
install the shock, making sure the top cap is sticking out as shown
do the same for the other side, tighten the lower pinch bolts to 39NM
now tighten the top cap to 22NM
do the same for both sides
now tighten the upper pinch bolt to 22nm
grease the wheel spindle, install the wheel and the pinch bolt, tighten axle to 74nm, then tighten pinch bolt to 22nm
now carefully install the mud guard,
install the calliper and tighten bolts to 30NM
remove trolley jack and pump the front brake so settle the pads
check the suspension operates correctly and there are no leaks
now clean the brake disc and wipe all the areas where you have worked
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My gear:
GoPro Hero 8 with media mod
Purple Panda Mics
Video Editing - Vegas Pro 15
Samsung Galaxy S20
My Bike:
2020 Honda NC750X
Location, UK
In case anyone can't find a youtube video or other coherent info about it...
below is for 2019 cb500x
1:43 for 2019 cb500x.. the pinch bolt is a allen aka hex key of 5mm
1:59 the front axle bolt ( aka wheel spindle) is a 14mm allen aka hex..not 17
2:32 same 14mm bolts for 19' year model
2:42 = 10 or 12 mm ( it's nighttime as of the time posting this comment..I'll try to remember to come back here to revise/edit tomorrow
I am not a mechanically minded person at all, but you are great at making what I would have thought complex jobs seem relatively straightforward, or at least do-able to people like me. If nothing else I am learning plenty by watching videos like this. Top work 👍
Thank you Jimmy, I try my best to make them as simple as possible, I try to improve where other How's tos have lacked, sometimes there is no right or wrong way, it's about getting the job done in a safe and simple way and it brings me pleasure to share that with the world. I appreciate your comment.
Excellent, clear and exact, well filmed and well documented. You showed all the steps and even the tools needed all in one place to make it easier for the viewer, and even have the steps written in the description as well. Top notch.
Thank you !
This video is gold. The CTX700 has the same forks so this makes the procedure very clear. The book only helps so much. Thanks for making this video. Next time change your bushings while you're at it. For a few bucks more you can go all they way back to factor spec.
Great advice. Thank you 😊
This is the best bike maintenance video I have seen. Thank you. Very tempted to give this a try with your instructions
Thank you so much
Best guide I found online. Used it to change the seals on my NC. Pretty straight forward
Thank you
Great simple video, just enough info and not over complicated, It should be easy for the home mechanic to follow, thanks.
My pleasure
Thanks Nick, thanks for uploading a very specific how to,,!!
No problem!
Great Video and my go to guide now. Although there was a lot more swearing when I did it for some reason!!
I swore a LOT off camera, though 😅
Great video dude, just filled this video to change my seals for the first time.
Thanks
"Carefully lift the mud guard" YANK!!
Lol!
Great video, all the powerpoints in the right order, thankyou!
It's been 3 years, how's that particular all balls kit holding up?
@@raypearson4475 lol a bit of gentle persuasion 😂
Excellent video, I needed a reminder of what was involved and this is just the ticket 👍
Cheers
Clear and concise, excellent vid. Sometimes the user manual goes through a procedure for aligning the front spindle/forks with a particular routine whenever you remove a wheel, a tightening sequence and a pump of the forks. This is the case for my CB1100, not sure if this is the case for the NC?
Great video thanks. I can't help but imagine you're wearing your helmet like the stig, think it more likely your mic 😁
Stig is much cooler than me
Nicely done sir. Educational and well put together.
Thank you 😊
Hi Nick, very useful video - thanks. Have you got any tips for a stuck bolt in the bottom of the fork? The first side I didn't have any problems, on the second fork, the bolt won't budge and is now starting to round off
I’m guessing this is the Allen bolt at the bottom ? If so use a broom handle and shove it down the tube to help grip the other end. Also use a heat gun or hair dryer or even boiling water on the end so help expand the thread area. Use a very good quality Allen wrench (buy a new one if possible) give it a tap when inserting the tool and pray.
Thanks for the tip. Will try some heat on it and try and pack it from the back tomorrow and cross my fingers! Got it soaking overnight with WD 🤞
@@simonjohnson4188 good luck 🤞
Great video. I would have liked a bit more info on the pvc pipe you used and to see your hand holding it as you banged the seal into place.
very very good.
Its gentral sink waste pipe found on a kitchen sink
@@nicksepisode much appreciated. I will have a look.
Great material! Thank you very much for sharing!
You’re welcome
A nice clear & well presented video. Thank ypou.
You're welcome 😊
No leaks on my shocks but thinking of doing this job on my bike just as part of a service. Thanks for sharing
I wouldn't change the seals unless they're leaking. An oil change would be beneficial, though
@@nicksepisode cheers
Hey Nick, how do you know when this is necessary? Got a bit of squeaking coming from the front end of my cb125f (2022), haven’t had chance to investigate yet, but can hear it more when riding slowly 🤦♀️ not done a lot of work on motorcycles before, so a bit unsure what I should be checking 🤦♀️ any help? Thanks! Great vid by the way!
As long as your forks aren’t not oily then you should be ok. You need to find out what’s squeaking, if could be your brakes, head bearing or internals of the shock. Check these first, or just ask for a free health check by a mechanic, they normally offer this service
@@nicksepisode thank you so much! I’ll have a look and if I can’t decipher where the noise is coming from, I’ll contact a mechanic 🤣 thanks again Nick, appreciate it! 👍🏻 x
@@JustJess91 let me know how you get on.
I’ve got to follow this Guy , Top mechanic
I'm honoured
THE DEFINITIVE GUIDE. Really helpful and rich of details. Thanks a lot. I would have, however, given a couple of sinks with the front, before tightening the lower bolts ;-) (b.t.w. Signed up) ;-)
Great tip!
How do you make sure the forks are straight before the thing the pinch bolts and putting the wheel back on? Do you slide the axle thru and out them back in at the same time? Any tips would be helpfull.
I’m doing this on my Suzuki 125, should I be following the same torque specs for the nuts and bolts as you have or are mine spacific to the bike?
Yes put the wheels through before pinching the bolts. Torque setting will be lower on a 125. Nothing a quick Google won’t sort out
Very well explained! Thank you so much
Oh and do you recall how much did that cost you ?
You're welcome and it cost about 25 pounds
very detail. I m going to do it tomorrow. Thanks
Good luck and take your time
I am going to use this video for manual when i replace the oil seals :)
Great video everything is basically the same on my 2007 ninja 650
Thank you
You just saved me$500 bucks, dude. Great vid! What product did you use for cleaning the parts? I mean the spray
Brake cleaner
nice vedio, I like it. how many time did you spend on the whole process?
2 hours
Video and explanation are very clear. It will work for me. Thank you so much. 🙏
I'm pleased I could help
Ta for that 👍 another reason to get a NC750X 😊
Top job Nick! Though and simple tutorial. Thanks mate
Cheers
I have NC 750X YEAR 2014...i wanna change dust rings on fork and change oil only...there goes 0,5l in each fork right or is it too stiff after?there is less oil in 700x i think
Measure what you take out and pour in same amount
Good video. Have you found the fork springs adequate?
Is there any point to installing a fork tube cover?
The springs seem OK for my type of riding (only on the road) fork tube covers can hold moisture so I don't use them.
I don't have time to watch the full video right now. Can someone *please* tell me if the front forks are the same between the nc700x and the nc750x? Thank you very, very much!
I couldn't tell you
At 6:33, when you mentioned seal orientation. What is the correct orientation??
if the item packet dont tell you then it shouldn't matter
Excellent
Hi there, I have a problem with the fork piston connecting to the socket bolt. I don't know why it's too short. If I try with a longer bolt, it's okay, but I don't like to change Honda engineering parts :) thx for the good video brother
there must be something that's not right for it to be too short, double check your parts
@@nicksepisode Yeee .
This answer I was afraid to hear :) I don't want to remove it again. The backup ring was really hard to install, but I will persist. Thanks for the awesome video and quick answer.
Hi. Do you know how to remove the bagues located inside the tube fork please ? I didn't find any documentation that shown how to do. Im talking about the plastics bagues inside the fork tube
the are press fit, pull them out with the stantion like a sliding hammer. join the Facebook forum there is plenty of help on there inc the workshop manual, hope this helps
Hi Nick. My fork seals have gone but I have just had a major op so not up to doing them myself. Anywhere in lowestoft or GY you would trust to do them on your bike?!
Drop them to T&R near ness point, we mot his bikes at harvest drive, so will look after you.
Nice one, thank you. They converted my rear brake to a left hand-lever for me on my DCT a while back. I was very impressed. Thanks Nick.
One thing, at 8:49 you mention it should be fully extended to take the air gap measure but the manual says you have to fully compress it. Which one is it then? On that note, I followed the instructions (compressed) and when filling the second fork I ran out oil and it's still missing about 10mm and truly I don't feel like buying a whole liter for that, what can I do? Thanks, man.
it's supposed to be compressed. Error on my part. Use the oil quantity mentioned, and you'll be fine
@@nicksepisode thanks so much, man. Cheers
Very clear instruction, thanks buddy!
Thanks
As far as I know the air gap is measured with the fork compressed.....it also says so in the bit of manual you show in the video. But this must have been mentioned already?
slip of the tongue
@@nicksepisode Might want to edit the video and the written part, this is an important step, If you measure the air gap full extented, there would be way too much oil in the fork
@HDHeroCam unfortunately no way of me editing it now, but the quantity is displayed so you’d think that would be a sign
How many ml of oil to replace? I read in the manual that the amount of oil to change is 514ml, but when driving, the fork is very stiff, all feedback from the road surface vibrates on the steering wheel
there might be another issue there, get it checked
Would this also be similar for the 2005 cbr 600 f4i?
Yup
@@nicksepisode Have you done it on a cbr600 f4i before? if so, what would be different from this video? reason because my cbr fork cap looks a little different from this one on the video
Hi. What is the importance of the pinch bolt at the left susp? Because mine was stole
Very important. Get a replacement 🙏
@@nicksepisode thank you
Hey mate quick question. Whats autosol? Metal polish or something? Can you point me the exact product so i can find one similar in my country
Hey bud, use any type of car polish,
@@nicksepisode thanks for that! Heard of 2000/1500 sandpaper with wd40 also. Whats your opinion?
@@marcoaurelio6941 nothing too abrasive, try a cutting polish, even toothpaste works well
Hi Nick really thinking getting one of these but espied bits of rust in places, would u say its a problem?
with care this vehicle will be rust free for many years
Well produced...
Thanks
iam very greatful to find this video..thank you so much..
You're welcome
Great Video, thanks Nick
My pleasure!
Thank you.
No worries
You said measure the oil level when fork is fully extended, but in manual it says that you should compress the fork fully and measure 101mm
Well spotted, use amount specified and you can't go much wrong
i don't know how true it is, but on the nc forums its saying the fork oil measurement could be a misprint, some riders are setting their fork to 140mm and that stops the jarring. i have the NC's so mine should be 102, but they say 120mm.
Bit of trial and error, and get what feels right for you
At 8:15 , when inserting the hold-down bolt into the bottom end of the piston/damper rod and tightening to 20 nm,
what if the friction of the old spring isn't enough to keep the piston/damper rod from spinning? What would hold it?
Shove a broom handle stick down there
Is there a difference between the 2012 and 2013 models?
nope
Perfect 👌 😊
Easy bike to work on it looks .
Do you remember what size exhaust clamp you used ?
Hi so sorry i cant find it, maybe you can see it in the video, its stamped on the side, id say 45mm at a guess.
@@nicksepisode that's ok I'm just being lazy.. not to difficult for me to find out. Thanks for getting back to me and great videos !
Autosol is abrasive - that's how it works. It is however, very fine.
Just enough to work on the pitting with a gentle rub
Nick - what is the correct size pvc and bracket?
that's a good question, i really cannot remember , the piping is standard kitchen sink waste pipe, the bracket i dont know, but even a larger one would work so go slightly bigger
@@nicksepisodehi, which way round does the oil seal go? I can't figure
@@andreigatman3383 follow the packet instructions, contact the supplier if none are supplied
brilliant, thank you
You're welcome
man thank you so much for this video.
You are very welcome
Great vid. Thanks
After how many kilometars did you do this?
They burst at 30k miles
Awesome job, thank you
You're welcome
O nível de óleo é visto com o tubo em baixo e não estendido.
correct
Is the air gap not 104mm on the X model?
I followed the repair manual for the 2014 nc750x model, other models may vary. Air gap is personal preference and you can't go too wrong with either measurements.
Thank you, great video, will attempt this weekend.
Good luck, and let me know how you get on with it.
good job ty
You're welcome
👍
:)
No fork alignment???
Went back on the old marks
thanks for text version!
You're welcome 😊
great video!....very informative but i think i will let real mechanics have a go at my nc700 as i will make things worse lol
Thanks for your comment. This job can be tricky, its far easier to pay someone to do the job 😆
Oil level video not include ?
It's a measurement from the top, but 1 litre that will cover it. It's roughly 800ml
I COULDNT HEAR WHAT YOU HOLD WHEN YOU TIGHTEN THE FORK OIL DRAIN BOLT??
install the spring and push on it
whats that mecatech ?
Nothing relevant for shocks, it's actually a grease that helps install stretch CV joint boots on with. It works well though
@@nicksepisode Thank you 🙏🏻
Everyone calls them ' top caps ' etc., they are fork bolts.