John Walker (UK) – Power / Ground cable kit

Aprilia Caponord ETV1000 Rally-Raid John Walker power ground earth cable kitOk, so with the old starter solenoid removed and a little starter-circuit modification simmering in the old mental stewing-pot, it was time to remove the OEM solenoid-starter cable, along with the Earth(Ground) cable and the battery-solenoid-30A-fuses cable and fit the new upgraded items from John Walker (UK).

Removing the ground and starter cable required the removal of the crash bars and side panels along with lowering the sump guard (remove front bolts and pivot on rear) to allow extra room to lower the oil tank and move the oil cooler – both to illicit a little more room to remove nuts/bolts more easily with the tools at hand. With the respective ends disconnected it was just a matter of a few tie-wraps to be removed and the old cables slid out of the frame. The battery-starter cable requires a bit more work (care?) as the two wires to the 30A fuses need to be cut. These will be spliced with the new ones on John’s loom, so I carefully pulled the black sleeving back as far as possible, matched the old/new looms together then cut the cables at what seemed the sensible place!

Now with all three cables clear of the bike I could lay them out and compare them to John’s replacements. Not only am I impressed by the workmanship of the new cables, but also that they are approximately 15mm longer than the old ones – not over the top and certainly not too short, just nice – a little extra flexibility when fitting. One thing I really like about John’s cables is the extra mounting point on the Positive and Negative lugs – very useful indeed.

 

After lunch, in they went with no drama at all. I spliced the 30A cables together with crimp/solder joints that are then sheathed with heatshrink. John doesn’t provide the splices, but he does supply the heatshrink! With that done, the old black sleeve can be wiggled back up into place and the whole thing then looks very ‘OME’! Running the cables down the frame is easy enough as they’re quite flexible – surprising as they’re almost (if not more!) than twice the diameter of the old cables …… this does make things a little tight getting the cables in place either side of the battery, but a bit of patience and a wiggle here and there gets them seated comfortably.

Before tie-wrapping everything and refitting panels and guards it just left the little matter of trying it out! So ignition on …. no pop, bang or fire (good start!) then thumb the starter button and ………….wow! What a difference, the engine spins like a hyperactive puppy spotting its tail for the first time  – fantastic!  Putting the multimeter on the battery (fully charged), then cranking the motor over showed a minimum voltage (momentary as the starter takes the in-rush current) of about 10.8V. That’s way better than it used to be. Steady cranking voltage rises back up to about 11.8V…….. and as mentioned cranking speed is very impressive now!

With that done, it was time to button the rest of the bike back together and try it all out on the road. What a difference a week makes eh? From ‘Dear dog please start, please start …. oh and starter please disengage, pppplease disengage’ to ‘Oi you, call that a starter? …… Listen in awe my wayward friend because THIS is a starter!’

In the end did I really need them? Well truthfully, no the originals are fine, no corrosion and the insulation is intact, but at the time of ordering I really didn’t know one way or the other. Yes I could have made my own, but sometimes like having a meal served to you rather than cooking yourself, it’s nice to buy in the finished item ready to fit. Besides, I just wanted upgraded replacements not some fancy parts made from gold wire finer than badger bum-fluff with diamond encrusted unobtanium connections! In the end I’m glad I did buy them ….. the starting is much more energetic now and that’s worth its weight in gold right there!

So if you are in any doubt at all about your wiring, then drop John a line and I’m sure you  will also be as pleased as I am with the results. Price including postage in the UK (May 2017) is £70.00GBP

And now the dust settles …..

Aprilia Caponord ETV1000 Rally-Raid Yuasa YTX14H-BS batteryWith a hot brew to the left and a warm mouse to the right, I’m ready to reflect on the last ten days as the Capo sits outside soaking up the morning Abruzzo sun. After the hiccup at 138 miles the remainder of the 3,000 miles went perfectly, not one low-volt drama in sight. Mind you, that is with a new YTX14H-BS battery in the bike since last Thursday!

That same morning she’d sailed through her MOT with a clean sheet at 120,861 miles and now reads 122,135 miles at journeys end. Waiting in the panniers is a new Aprilia 150A starter solenoid (AP81129275) ordered online Aprilia Caponord ETV1000 Rally-Raid starter solenoid 150A AP81129275from Aprilia performance (UK) and deliver in 48Hrs which is great service, also a beautifully made power/ground cable kit from John Walker who pulled out the stops to make sure the kit reached me before we departed for Europe. More on this later.

So on reflection, what next for the dear old Capo? Well I’ll install the solenoid and cables over the next week or so and dig out the rear wheel/sprocket carrier bearings and seals, since a dull drone can be heard from the back wheel at about 50-70mph – and is getting steadily louder. There’s Aprilia Caponord ETV1000 Rally-Raid power/ground John Walker cable kitno play or sign of rust near the seal, but my guess is that one of the bearings is on the way out, so best do a touch of pre-emptive maintenance I think. 😀 

Highs and lows of the trip …… low, the DVSA. I can’t and don’t want to say anything on that front …… the high, yesterday afternoon, slicing through the late afternoon A14 traffic side by side with a new gen Caponord also two-up. We kept each other company for 20 minutes or so until he peeled off for Rimini, big smiles and waves all round! Great fun!!

And so, waffle over, without further adoo let the spanner twiddling begin! 😯 

Flat-line dashboard

Franken-CapoWith just over 82,000 miles on the Caponord, the dashboard died. Yes, while about to set off from a rather innocuous little shop car park on a hot and humid afternoon, the dashboard shuffled off its mortal coil … Curled up its toes, bought the farm – as dead as the proverbial Dodo.

On the way home I mulled over the possible cause, was it the additional microcontroller/hardware I added in 2013 or simply a failure of some part of the original Magneti Marelli circuit board? By the time I got home, I had a few possibilities rolling around my head, but nothing concrete. 15 minutes after cutting the ignition, the dashboard was on the test-bench.

Ultimately the fault was traced to a ‘Via’, a hole where a signal/power track passes from one side of the board to the other. In this case, where there should have been 12 Volts, there was 2 Volts! A simple wire link bypassed the problem and the dashboard popped back into life.

So is it a design flaw or manufacturing defect? I’d say probably a bit of both! Below is a photograph of the faulty area on a Mk1 and Mk2 board. Notice the Mk2 (right hand) has a much larger track area AND has 4 Via’s instead of the Mk1’s single Via bringing power from the top of the board to the underside. All well and good BUT both boards still only have a single Via (red dot) to pass power to the regulator on the front ……….. And it’s this Via that failed!

Aprilia Caponord ETV1000 Rally-raid dashboard track

 It seems that this was known to be a troubled area and was re-designed …. sort of. But the fact that the last Via was never upgraded, simply left this as the weak link – unfortunately, one of many on these boards!

Anyway, this one’s a runner for now ……. and that’s a jolly good excuse for a run around for an hour or two to thoroughly test it out! 😀

Reading the current situation

©Lockwood International 2014 - UK Futura inlay with voltmeter, L&R indicators and sidestand lightWith the new inlay nearly complete and sufficient testing of the modified dashboard to prove its reliability in day-to-day use, it’s now time to move on and complete the next stage of miniaturising the circuit board. The big grey box and wiring loom holding the Arduino Uno stays for the time being, but now it will house the smaller circuit board and Arduino Nano. Once thoroughly tested, the box and loom will disappear as the board finally gets mounted inside the case.

Aduino Nano and Pololu 1300 programmerThis time around the microcontroller will be programmed differently to speed up the start time and free up more memory space. For that I’m using a Pololu 1300 programming device ….. Something I’ve never done before, let’s hope I don’t fry it! If all goes well, that then leaves me an Arduino Uno spare and it would be rude not to find another Caponord related little job for it! So here’s the next project…..

I’ll be installing the Uno and three of these naughty little puppies along with and LCD screen into the redundant grey case. Self-powered, it will measure current flow through the 30A rec/reg fuse and the two main 30A fuses simultaneously. The screen will Pololu ACS714then display measured and calculated data as well as storing the data onto an SD card mounted into the display. So it’ll be a data-logger as well!

The idea is to have the three ACS714 devices, wiring loom and a single multi-pole connector under the saddle. The unit will then simply plug into the connector and merrily measure away. A decent battery and memory card should make data logging for 2hrs + pretty straight forward. So watch this space ………

 

Power distribution block

Power distribution box 50x50x25Andy (beasthonda on the AF1 forum) has just put these little beauties into production. A nice simple power distribution block that provides four feeds with both 5A and 2A fuses pre-installed. The circuit board is coated in potting compound to prevent moisture and vibration working its charm and the whole thing sits in a box 50 x 50 x 25 …… small enough to mount under the riders seat.

4 fuses - 2x 5A and 2x 2AThe very kind gent that he is, Andy sent me a pre-production one a few months ago and it has proved invaluable in clearing a whole rats-nest of wiring and in-line fuses from the space above and behind the battery. In short, a well made and neat solution to the inevitable side effect of adding extra electrical items to the Caponord.

Andy informs me they will on sale for approx. £25 each including postage & packing, about $40/€29. So if you’re interested, send him a PM from the AF1 forum and tell him moto-abruzzo sent you! 😀