S2R1000 Wiring Reduction Thread

[spinned2]

I would like to get by bike back to the real basics.

Has anyone reduced the amount of electronics/wiring on an S2R1000?  Is there any way to override some of the wiring needed for the ECU?  Let's start with the kickstand shutoff switch.  I know there must be a way to override that connection.  I'd like to toss that harness off the bike.  But how about others like the temp sensor and gauge cluster wiring harness?

Thanks for any input.

[Drunken Monkey]

Funny you should mention this, as I just semi-completed a similar project.

The gauge cluster isn't going anywhere unless you get your ECU reflashed, because that's where your dreaded immobilizer lives.

The inputs to your ECU shouldn't really be bypassed, since the ECU actually uses them. But things like the kickstand switch can simply be cut and shorted out, and wires can be re-routed to look better if you want a simple project.

More complicated? You can reroute and decide to cut and re-solder the excess bits of wiring harness.

More complicated than that:
http://ducatimonsterforum.org/index.php?topic=40299.0

It's for an '01 M900, but it has similar issues. Basically a fair amount of the bike's wiring is either devoted to the ECU (and that you can't change much, other than to shorten and clean up the wires) or to the bike's headlights, taillights and turn signals (which you can dramatically reduce)

And then there are guys like Duck Stew who do an AWESOME job of professionally redoing wiring harnesses.

[spinned2]

well here is the answer to the kickstand wiring:

Disabling the kickstand kill switch:
http://ducatimonsterforum.org/index.php?topic=15695.0

Aftermarket adapter:
http://www.tpoparts.com/catalog/product_info.php?cPath=61_70&products_id=62&osCsid=99fd3c04fab1251379fde083c084fdff



There is also a "safe" method using a radio shack diode but I cant understand the thread without some pictures.  It connects the neutral safety switch with the kickstand switch to serve as a shutoff system in case the bike is in gear when it is started.

Here is the diode thread:
http://ducatimonsterforum.org/index.php?topic=280.0

[spinned2]

Funny you should mention this, as I just semi-completed a similar project.

Good stuff.... especially how you handled this...

[spinned2]

Duck Stew... do you build replacement harnesses that can work miracles at reducing the wiring clutter... maybe even get rid of the gauge cluster and replace it with a simple tach???

[Drunken Monkey]

Much as I wish he did, 'Stew does not have a magic "harness-b-gone" kit (although I keep telling him there's a market.)

Getting the ECU reflashed will at least let you wire up a "normal" tach, and just tackling a few of the most visible wires makes a world of difference. The first thing I tackled (way back when, before I lost my mind) was getting a longer starter cable, and routing more of the lines around to the left side of the bike, leaving the right side clean.

[spinned2]

Getting the ECU reflashed will at least let you wire up a "normal" tach

Do you mean we can get rid of the gauge cluster and the the circuit board inside of it?

[Duck-Stew]

With a re-flashed ecu so the immobilizer is disabled, the bike will run just fine w/any gauge you want (or none if you wanted...)

I recently finished a bike I dubbed the Dirt-Track special.  If you do a search for that it should lead you to a thread which has some pics.  I put a MotoGadget Tiny speedo where the ignition key switch was and then wired it up.  (Hid the key switch under the tank)...

[spinned2]

Dirt-Track Special thread:
http://ducatimonsterforum.org/index.php?action=search2

ok we are getting close here.  Look no wires!  You must have a crankcase breather on this bike too.

[Ohmic]

Do you mean we can get rid of the gauge cluster the the circuit board inside of it?

Technically yes you can. As mentioned one way to remove the security interlock feature from your ECU by having it reflashed. I've spend many hours studying the security serial communication protocols on the s2r. What happens is when power is first applied to the system, your gauge cluster will activate and listen to your RFid antenna(located inside the main key lock). Which then captures a unique number(64bits) from your key(black key). It then compares with its own(cluster) ID. If OK, it then sends the ID to the ECU. If the ID matches to that of the ECU, then the ECU will allow the engine to fire up. That is why all 3 sub-system(KEY, CLUSTER, ECU) can not be interchange with parts from another bike. You could say they are "married" together.

Since i didn't want to have my ECU reflashed and wanted to experiment. What i did was to capture these digital bits between the cluster and ECU. Built a circuit to regurgitate this data to the ECU upon each power up of the bike. Done.
Sounds simple? No. Can it be repeated on other bikes? Yes. One will need a fair understanding of electronics, the matching set from a bike(Key, Cluster and ECU), a special hardware(custom built) with a serial port to talk to ECU, and loads and loads of free time. Would i do it again? Hell no!



I was able to remove pretty much 60% of my stock harness. Most of connectors, all fuses, all relays... picture above shows what was put in garbage after work was done! I took the liberty of building a circuit board to house all these electronics and other cool goodies. Something similar to the MotoGadget mUnit.  Too much to go into.

[Drunken Monkey]

I took the liberty of building a circuit board to house all these electronics and other cool goodies. Something similar to the MotoGadget mUnit.  Too much to go into.

BTW, if you ever get another prototype ready, I'm ready.

[Ohmic]

BTW, if you ever get another prototype ready, I'm ready.

One of these days(after riding season of course) i'll get off my ass and build the other 2 prototypes. Or i just may do up a verson2 of it. After putting the first one together i found some areas where it could be improved. Until then...