Information on setup and use of JP Diag
ECU diagnostic Software
ECU Installed in 2002 ST4s: 59M
The TPS is PF09
IAWDIAG ECU Diagnostics Software
and ECU Reader and Writer.
Info
and How to for Superseal 1.5mm AMP connector pin removal and assembly
Fork Overhaul and Oil
Replacement - Ducati ST4s Showa Forks ('02-'03 Ducati ST4s)
2002 Ducati ST4s Manuals: Work Shop
Manual (large file +35Mb but text searchable)
Parts Manual
Owners Manual
(IT, EN, FR, DE)
|
Torque Values Handy Capacity Values for ST4s:
|
|
|
Oil Quantity |
3.7L |
~
3.9qts |
Coolant Quantity |
3.5L |
~
3.7qts |
Fuel Quantity |
21L |
~
5.5gal |
Front and Rear Wheel Torque Values
|
Ft-Lbs |
N-ms |
Front Axel nut
-- 28mm socket for nut |
46 |
62 |
Front Axel Pinch
bolts -- 12 mm head |
14 |
19 |
Front Brake Caliper retaining screw |
30 |
43 |
Rear Axel nut
-- 30mm head |
61 |
83 |
Rear Chain Adjust
bolts -- 12mm head |
5.9 |
8 |
Front Sprocket Plate
bolts -- 8mm head |
4.4 |
6 |
Oil Change Related Torque Values:
|
Ft-Lbs |
N-ms |
Oil Filter
Cartridge |
8 |
11 |
Oil Drain Plug |
30 |
42 |
Oil
Mesh Screen |
30 |
42 |
Oil
Mesh Screen outer Cap |
30 |
42 |
Engine Mount Bolts Torque Values
|
Ft-Lbs |
N-ms |
Rear engine mount bolt -- 12mm
bolt thread
(14mm bolt head, 15mm nut) |
45 |
60 |
Link to Other Torque Values |
Following a complete tear down,
overhaul and cleaning, I reassembled the BBG ST4s and gave her a couple of
test rides. Initially start required a good bit of key cycle to prime
the fuel system and start button engagement to spin the engine, eventually
firing. 1. Hard
Start: When engine is cold, it requires lots of cranking until it
finally fires and will hold an idle. Like 10 or 12 iterations of Key
"ON" and Starter button press and hold for a few seconds turning the engine
over, until its clear it is not going to fire or it fires and dies.
-- Replaced the Fuel Pump relay
(under the seat) and it improved a little, but sometimes she gets a bit
finicky, definitely doesn't like being cold.
-- Going to conduct a TPS baseline
adjustment.
2. Right fork
seeping: Both forks were flushed and refilled with Spectro 5w spec
fork oil at bike overhaul but were not disassembled. The right fork is leaking at its seal.
-- Overhauled both forks, replaced
inner and outer bushings and installed fresh seals and dust wipers -- new
Spectro 5w fork oil.
|
Install and Set Timing Belt Tension Values using acoustic
vibration:
Measure and set Tension on timing belts: 110Hz on new Ducati OEM belts and
approx 90-100Hz on existing belts. Set tension at 100Hz for New Exact Fit
belts (CA Cycleworks).
To set the belt tension, the cylinder you are checking MUST be at TDC so
that there is no tension applied to the belts by the closing springs pushing
on the rockers.
1. For the horizontal cylinder it is the forward run between the
tensioner pulley and the exhaust camwheel (posn 21).
2. For the vertical cylinder it is the rearmost run between the
idler pulley and the exhaust camwheel (posn 25).
|
Suspension Info
Preload (24 Dec 20)
|
|
Front |
Rear |
1-2 |
Static Sag |
|
|
1-3 |
Rider Sag |
|
|
Ohlins recommendations:
|
|
Front |
Rear |
1-2 |
Static Sag |
15-30 |
10-20 |
1-3 |
With Rider |
35-50 |
25-40 |
*measurements in mm.
25 December 2020 |
Front |
Rear |
Compression Damping |
11 |
|
Rebound Damping |
13 |
|
Preload |
2d line from top |
|
Tire Pressures: Front- 33PSI; Rear- 35PSI
0050815 |