South West Bikers | Motorcycle Forum

Bike went well today, barring overheating due to high tickover, ambient temp., and lots of ****** traffic lights. Stopped, and fan was not working. Let it cool, got it home and went for the fuse box.

Unhappily I pulled out the fuse off which the immobiliser / alarm is piggy-backed. Normally not a prob, as replace and cancel with key fob.

HOWEVER - it only screamed for a split second then fell silent.

1. Key fobs (two) do nothing.

2. Turning on ignition lights up the instrument panels and everything works. Not normal with alarm set.

3. EXCEPT that the starter does not.

4. Battery OK, changed in-line fuse, blade fuse intact.

Any ideas oh wise ones ??

Yep. You've created a voltage spike which has pissed off the alarm. Is it a datatool, perchance?

Best thing to do with an alarm is desolder it and Chuck it in the bin. Who pays attention to them nowadays anyway?

Datatool it is. Veto Evo. Had it for ever on 2 bikes and 30,000 miles with no problem.

Will have a look in the cold light of day tomorrow. Nursey says I need to go to bed now.

Completely agree with moose.
Remove and forget.

I'll know the pins to link out to allow you to remove the Circuit board but still let the Bike run.

The rocker switches on bike alarms are farrr far too sensitive to be useful anyway

No fairing panel or seat switches.

I'll try to get some help to push it (slightly up hill) the 80 yds to my house. Had to park there 'cos of footy peeps and illegal aliens filling the street when I got back.

billinom8s wrote: ↑Sep 2nd, '18, 20:38I'll know the pins to link out to allow you to remove the Circuit board but still let the Bike run.

Be good to know Billi.

As you were peeps, stand down.

Just call me 'Tesla' El Gran Bodjero !

Also found the culprit.

Fan blade(s) physically jamming. Prob something a bit twisted or moved in the off.

Taken fairing off again and WD40'd the rusty fittings.

Enuff for today. Coffee and little lie down required.

So what you're saying is you fixed the problem you caused?
You bodged the alarm fitting by adding to the fuse of an existing circuit (clearly the fan circuit in this case). You then fell off causing the fan to stick. Starting the bike with a stuck fan then caused it to blow the fuse when the fan tried to cut in, which then upset the alarm when it lost its power.
Is that enough "your faults" in one post??


Seriously though, well done for finding the root cause

Almost there Dr. House.

The alarm was dealer-fitted and off the horn / indicators fuse.

The fan fuse was intact. Alarm fuse intact. Blades jammed which caused overheating.

I pulled the alarm fuse which nuked it.

I sorted the alarm out then tried to find the fan problem. Relay OK, wiring looked OK so had a quick grope. It's alright, she's over 16.

...and it''s almost 6 o'clock so the coffee turned into a Ruddles.

Despite all the Mellow cunning and bodjing, can't get at it.

Radiator has 'KTM' and a number stamped on it. That might explain it.

Tank off...Agaaaaain.

Need coffee first. Jacket arrived (nice).

Radiator had taken a bit of a lateral thump, slightly distorting the weakest link, that being the fan cowling.

So, I had a serious word or two with it, freeing the blades and (I think) sorted out the tick over whilst I was in there.

Had to have a break. Just 2 fairing panels to go back on - and a thousand tools etc. to sort out.

Large stew and ENORMOUS doughboys coming later as a reward.

Well done mate, always good to find and fix a problem regardless of what/ who caused it!