Author Topic: YSS fork kit component PN  (Read 396 times)

0 Members and 1 Guest are viewing this topic.

Hog Head

  • Bulleteer
  • ***
  • Posts: 239
  • Karma: 0
on: January 14, 2021, 08:28:14 am
I live in Thailand, home of the YSS factory, and have been talking to them about their front fork "upgrade" kit.

In the event that you do not want the .9 kg/mm fork springs in the kit, want a different spring, or like the stock progressive spring, you can buy the cap and cartridge emulator separately.  Make your own spacer - sched 80 PVC pipe works well.

Part numbers:
1.FCM38-41-002-90 /ACCESSORY SERVICE  FORK CAP   Price 1500  thb

2. PD335-D4/SET PD335+SPACER RE Interceptor\CONTINENTAL 535 GT EFI '14-17     2500  thb   

Note that the emulator comes with a spacer as touted by TEC.

The recommended YSS 15W fork oil has a viscosity of 66.8 cSt at 40C should you use a different brand
http://www.peterverdone.com/wiki/index.php?title=Suspension_Fluid



Ducati Supersport S
Harley XR1200
Triumph T-120 Bonnie (Hinkley)
RE 650 Interceptor
Harley XL1200R


wachuko

  • Bulleteer
  • ***
  • Posts: 164
  • Karma: 0
  • '21 Continental GT 650
Reply #1 on: January 14, 2021, 02:20:29 pm
Thank you.

So something you would have to ask specifically from a dealer.

Not listed on their website.

https://www.yss.co.th/product-list.php?cat=fkit&vehicle_type=1&brand=111&model=3606&year=&keyword=&page=1
Ride safe!
Wachuko
'19 BMW F 850 GS Adventure
‘21 Royal Enfield Continental GT 650


om15

  • Scooter
  • **
  • Posts: 23
  • Karma: 0
Reply #2 on: January 14, 2021, 05:17:46 pm
I did similar improvement without the cost of the full YSS Kit.

I bought a set of emulators from TEC and a pair of pre load adjusters from Mr H.  ( Beware the pre load adjusters from TEC say that they can only be fitted to a bike with risers, I asked this question at Hitchcocks and they said no ours will be fine, there are fine but only if you set 50% or more preload, otherwise they do foul the handlebars).

The front forks came off easily, as a precaution I lubed all the bolts and fasteners on refitment, the oil qty from the manual is 430ml per fork, there was only about 300ml of oil in each fork. I used Silkolene 2.5 as advised by Mr Fillingham, re-used the existing springs and spacer tubes, but shorted each spacer by 15mm to compensate for the emulator.

Fells nice and firm, but yet to road test, will do as soon as we are able to get back out on the road again.
current bikes
RE Himalayan 2019
RE Interceptor 2020.
Previous, Triumph Trident 900, 03 Bonneville, Adventurer 900, 13 Bonneville, Street Twin. Tracer 700. RE 500 Classic, BSA C15, Yamaha XT500

South West England, retired aircraft engineer.


Jack Straw

  • Grease Monkey
  • ****
  • Posts: 366
  • Karma: 0
  • Prescott, Arizona
Reply #3 on: January 14, 2021, 06:25:35 pm
With respect to fitment of PLAs the instructions furnished by Hitchcocks show a fork set with the fork tube top adjusted flush with the upper triple clamp.  Most 650s seem to have the tube proud by 8mm measured at the slot in the clamp.  Not all of the bikes have a flat upper surface on the clamp so measure at the same point all the time.

I fitted the Hitchocks adjusters  with my forks in the standard (I think) 8mm proud position and they just clear my bars at minimum pre-load but an open end 12mm is the only tool I have that will fit.

Disclaimer here;  I did change out my stock bars for a slightly wider flat track style which may have made a difference.
Interceptor 650, Honda VT500 Ascot at present
Norton Commando, Ducati Diana Mk. III, CB 500/570, KLR 650, YDS-3, SV 650 and a few others in the past.


Hoiho

  • Engorged Member
  • Grease Monkey
  • ****
  • Posts: 290
  • Karma: 0
  • NZ - 2020 GT 650
Reply #4 on: January 14, 2021, 08:29:26 pm
I did similar improvement without the cost of the full YSS Kit.

I bought a set of emulators from TEC and a pair of pre load adjusters from Mr H.  ( Beware the pre load adjusters from TEC say that they can only be fitted to a bike with risers, I asked this question at Hitchcocks and they said no ours will be fine, there are fine but only if you set 50% or more preload, otherwise they do foul the handlebars).

The front forks came off easily, as a precaution I lubed all the bolts and fasteners on refitment, the oil qty from the manual is 430ml per fork, there was only about 300ml of oil in each fork. I used Silkolene 2.5 as advised by Mr Fillingham, re-used the existing springs and spacer tubes, but shorted each spacer by 15mm to compensate for the emulator.

Fells nice and firm, but yet to road test, will do as soon as we are able to get back out on the road again.

You didn’t drill out the compression ports in the damper rod to allow the PD valves to work?


om15

  • Scooter
  • **
  • Posts: 23
  • Karma: 0
Reply #5 on: January 14, 2021, 08:40:44 pm
No, no drilling required.
current bikes
RE Himalayan 2019
RE Interceptor 2020.
Previous, Triumph Trident 900, 03 Bonneville, Adventurer 900, 13 Bonneville, Street Twin. Tracer 700. RE 500 Classic, BSA C15, Yamaha XT500

South West England, retired aircraft engineer.


Hoiho

  • Engorged Member
  • Grease Monkey
  • ****
  • Posts: 290
  • Karma: 0
  • NZ - 2020 GT 650
Reply #6 on: January 14, 2021, 08:46:30 pm


om15

  • Scooter
  • **
  • Posts: 23
  • Karma: 0
Reply #7 on: January 14, 2021, 09:04:15 pm
current bikes
RE Himalayan 2019
RE Interceptor 2020.
Previous, Triumph Trident 900, 03 Bonneville, Adventurer 900, 13 Bonneville, Street Twin. Tracer 700. RE 500 Classic, BSA C15, Yamaha XT500

South West England, retired aircraft engineer.


om15

  • Scooter
  • **
  • Posts: 23
  • Karma: 0
Reply #8 on: January 14, 2021, 09:28:02 pm

I have just looked again on the TEC web site, on the TEC triumph video they show extra holes in the damper, so yes good spot, however I am puzzled why the YSS kit does not require additional holes, but emulators on their own do?
current bikes
RE Himalayan 2019
RE Interceptor 2020.
Previous, Triumph Trident 900, 03 Bonneville, Adventurer 900, 13 Bonneville, Street Twin. Tracer 700. RE 500 Classic, BSA C15, Yamaha XT500

South West England, retired aircraft engineer.


NVDucati

  • Grand Gearhead
  • *****
  • Posts: 1,235
  • Karma: 0
  • USA 2020 INT
Reply #9 on: January 14, 2021, 10:23:56 pm
I have just looked again on the TEC web site, on the TEC triumph video they show extra holes in the damper, so yes good spot, however I am puzzled why the YSS kit does not require additional holes, but emulators on their own do?
Other brands do the same thing. If they said DRILLING REQUIRED, they loose x% sales. If a buyer wants somewhat better suspension, just drop them in / no drilling required. If you want the best result these units can provide, drilling recommended.
Member: AMA
Current Rides: '14 DL1000 ADV, '06 SV650N, '93 900CBRR, '74 Ducati 750GT


om15

  • Scooter
  • **
  • Posts: 23
  • Karma: 0
Reply #10 on: January 15, 2021, 08:31:29 am
Thanks gents, looks like the next job is identified!
current bikes
RE Himalayan 2019
RE Interceptor 2020.
Previous, Triumph Trident 900, 03 Bonneville, Adventurer 900, 13 Bonneville, Street Twin. Tracer 700. RE 500 Classic, BSA C15, Yamaha XT500

South West England, retired aircraft engineer.


om15

  • Scooter
  • **
  • Posts: 23
  • Karma: 0
Reply #11 on: January 18, 2021, 11:50:49 am
Carried on doing a bit more to the front end, I fitted RE fork gaiters and the RE short windscreen.
current bikes
RE Himalayan 2019
RE Interceptor 2020.
Previous, Triumph Trident 900, 03 Bonneville, Adventurer 900, 13 Bonneville, Street Twin. Tracer 700. RE 500 Classic, BSA C15, Yamaha XT500

South West England, retired aircraft engineer.