Front fork maintence-clear-oil change

[Adept]

I would like to check out the front fork, and do some cleaning and oil change. No leaking, no demage, so nothing serious work on it, as I expect...

Can anybody help about disassembling, measure the oil level, or any tip and tricks?

So anyting and everything please...

[kneeslider]

Try to get hold of the service manual, it should help you in the pull down as well as the spec/quantity of oil etc.

Having read in a magazine recently about suspension, seems factory fill fork oil has little in friction eliminators, so an aftermarket fork oil would help in making the fork work as it should.

[Adept]

In the chapter 14, I found this
spcified oil: SS#8
capacity: 185cc

But there isn't a single word about disassembling... (I have too different manual)

[kneeslider]

According to my DownTown 200 service manual, the section you should look for is Section 14 (Front Shock Absorber), Pahe 184 onwards.

[zombie]

This will help. They are all the same.

[Adept]

I relalize I don't know what does the SS#8 fork oil means??
What type of oil is this?

[kfc.android]

I relalize I don't know what does the SS#8 fork oil means??
What type of oil is this?

@Adept
Check this out (Google translate is your friend if you can't understand Chinese)
http://forum.jorsindo.com/forum.php?mod=viewthread&tid=2355702&highlight=nikita%2B%E5%89%8D%E5%8F%89

[BettinANDlosing]

Get a small syringe, best found at a farm supply store or medical store. I believe that ss#8 means 8w weight oil. I've used 5w fork oil in many of my bikes and it feels a LOT better, you'll be shocked how much better it is. I used Belray fork oil. If you can reach the 14mm pinch bolts on the top of your socks you shouldn't have to take much apart. Remove the wheel and remove the bolts on top of the the shock. Once you have the shock off unscrew the large cap on top, careful there is a large spring and it is under pressure. You can pour the old oil out and let it drain for a while. Move the shock up and down to get all oil out. Replace with recommended quantity. Install in reverse order.

[Adept]

@Adept
Check this out (Google translate is your friend if you can't understand Chinese)
http://forum.jorsindo.com/forum.php?mod=viewthread&tid=2355702&highlight=nikita%2B%E5%89%8D%E5%8F%89

Of course, I do understand, speak and write perfectly in Chinese

I translated it to Hungarian, and English, I try to figured it out the point...

So the less oil (150cc) is rigid, and much oil (200cc) is comfordable?

[Adept]

Get a small syringe, best found at a farm supply store or medical store. I believe that ss#8 means 8w weight oil. I've used 5w fork oil in many of my bikes and it feels a LOT better, you'll be shocked how much better it is. I used Belray fork oil. If you can reach the 14mm pinch bolts on the top of your socks you shouldn't have to take much apart. Remove the wheel and remove the bolts on top of the the shock. Once you have the shock off unscrew the large cap on top, careful there is a large spring and it is under pressure. You can pour the old oil out and let it drain for a while. Move the shock up and down to get all oil out. Replace with recommended quantity. Install in reverse order.

THANKS!!!
I think weekend will be my fork fixing time

[BettinANDlosing]

Of course, I do understand, speak and write perfectly in Chinese

I translated it to Hungarian, and English, I try to figured it out the point...

So the less oil (150cc) is rigid, and much oil (200cc) is comfordable?

You don't want to use too much oil, more than spec and you will bottom out early because there is no room for the oil to move. Use the recommended amount, but you can tune the feeling with the weight of oil you buy, thin is softer damping thick is harder. The "stiffness" is tuned with different springs, damping and rebound are controlled by oil.

[Adept]

I've just red in a BMW forum:
5-10w is good for bikes, 20-30w makes too hard the suspension, affect the driving experience dangeriously...

[CROSSBOLT]

SS#8 is "Saybolt Seconds" and it should take 8 seconds for a set quantity to drain through a specified orifice (hole diameter). Check with API to find quantity and hole size.

Karl

[Adept]

https://www.louis.eu/rund-ums-motorrad/bike-datenbank/kymco-downtown-300i-abs/v2/2137

In this chart they say 20w oil for the DT's fork...
Is it a big difference 5w and 20w?

What do you think?

[BettinANDlosing]

I think that's wrong, there manual says ss#8, which from what I've found is about 8.5w. The closest you'll be able to find is 10w.