BT81 Posted September 14, 2013 Report Share Posted September 14, 2013 Hello all So. 05 bmw k1200r Recently the flashing battery light appeared. After a ten mile ride of no problems, pull the clutch in, revs drop. Engine stops....coast to a halt Later that day, new expensive battery installed (mention that only because its not some cheapo battery) So, couple of weeks, no problems Today, 20 miles on the motorway. Slip road, pulling up at a roundabout, clutch in, engine dies? Could have been a bit scary, lucky no one was behind me as I managed to start the engine on the button Then at every set of lights I was holding the throttle open to stop the revs dropping Later on. Pull up. Engine dies again? Hour later. Key in, button press. Engine starts Ideas, go! :-) Link to comment Share on other sites More sharing options...
Mahatma Posted September 14, 2013 Report Share Posted September 14, 2013 Clogged airbox/fuelfilter?If this was in rain,maybe poor isolation... Link to comment Share on other sites More sharing options...
BT81 Posted September 14, 2013 Author Report Share Posted September 14, 2013 It was dry today, but the garage where its kept seems to have a leak. But the bike is still covered by a water ish proof cover Air filter. I do have a new one to put in Just seemed strange that round town there is no problem. But a good ride out on the motorway... I (with assistance from Lorenzo .....) will change the air filter to discount that Link to comment Share on other sites More sharing options...
lorenzo Posted September 14, 2013 Report Share Posted September 14, 2013 I'd tell you to fuck off but you can't go anywhere on your knackered bike... Link to comment Share on other sites More sharing options...
kwakbiker Posted September 14, 2013 Report Share Posted September 14, 2013 reg/rec on way out? Link to comment Share on other sites More sharing options...
BT81 Posted September 14, 2013 Author Report Share Posted September 14, 2013 Reg/rec....you are speaking to me The what and what? :-) and how much does a reg/rec cost... Link to comment Share on other sites More sharing options...
lorenzo Posted September 16, 2013 Report Share Posted September 16, 2013 About £80ish, but could be anything from £50 upwards. If you weren't afraid/scared of the rain/monsoon and called/texted back to me about coming round yesterday afternoon/evening I'd have at least got you a yes/no diagnosis on the reg/rec and any other things that can/can't have a forward/back slash put in them. Link to comment Share on other sites More sharing options...
lorenzo Posted September 16, 2013 Report Share Posted September 16, 2013 Incidentally, a reg/rec being knackered wouldn't be totally unheard of as you've had a shagged battery, the one thing can often lead to another, but it doesn't explain why you could then start your bike once it had cooled down. I don't think that's your culprit, but it's an easy enough thing to check. Link to comment Share on other sites More sharing options...
BT81 Posted September 16, 2013 Author Report Share Posted September 16, 2013 Yeah; just seems strange that after a motorway trip??....but did not occur upon picking the bike up and riding back from london? Been looking on the bmw forums, words like 'ECU flash' and four figure numbers for a fix start to scare me! Let us know when you are free. and I will have a supply of biscuits ready! Link to comment Share on other sites More sharing options...
Turok Posted September 16, 2013 Report Share Posted September 16, 2013 Idle speed too low? Throttle Position Sensor needs resetting? Link to comment Share on other sites More sharing options...
Superdunc Posted September 16, 2013 Report Share Posted September 16, 2013 I don't know if this applies to your bike, but it might be worth looking into. A lot of that era BMWs need to go through an adaptive learning routine for the ecu when you disco the battery. They'll normally sort them selves out after a few trips anyway if you don't go through the exact process. Link to comment Share on other sites More sharing options...
BT81 Posted September 16, 2013 Author Report Share Posted September 16, 2013 Idle speed too low? Throttle Position Sensor needs resetting? It appears to idle normally I don't know if this applies to your bike, but it might be worth looking into. A lot of that era BMWs need to go through an adaptive learning routine for the ecu when you disco the battery. They'll normally sort them selves out after a few trips anyway if you don't go through the exact process. there is a throttle re-set thingy; I did do this. Maybe I'll do it again and see what happens ... Link to comment Share on other sites More sharing options...
BudgetBoy Posted September 16, 2013 Report Share Posted September 16, 2013 Id say reg/rec.. cooked the old battery and will cook the new one if not sorted.. Get loz to check it asap mate. Link to comment Share on other sites More sharing options...
lorenzo Posted September 16, 2013 Report Share Posted September 16, 2013 Id say reg/rec.. cooked the old battery and will cook the new one if not sorted.. Get loz to check it asap mate. You knows where I am, nip over whenever our shifts align, but i don't get how, if it was the reg/rec, it'd start up afterwards and then take him home? Sounds much more like a TPS adjustment issue or a loose connection on something. I'm saying it's user error. Link to comment Share on other sites More sharing options...
BudgetBoy Posted September 16, 2013 Report Share Posted September 16, 2013 You knows where I am, nip over whenever our shifts align, but i don't get how, if it was the reg/rec, it'd start up afterwards and then take him home? Sounds much more like a TPS adjustment issue or a loose connection on something. I'm saying it's user error. Im going by the fact that he had the battery light come on,, then replaced the battery.. No faults for 2 weeks and then they started again. Just sounds like the battery is discharging/not charging.You would find out more if you put a multimeter on the battery to test the charging circuit. *Assuming he has touched nothing else on the said bike that is. Link to comment Share on other sites More sharing options...
Turok Posted September 16, 2013 Report Share Posted September 16, 2013 http://www.electrosport.com/media/pdf/fault-finding-diagram.pdf Brilliant fault-finding trouble-shooter. You'll need a decent multi-meter and an idea of how to use it, but after that it's pretty easy to follow. Link to comment Share on other sites More sharing options...
Hendo Posted September 16, 2013 Report Share Posted September 16, 2013 All the symptoms point to diesel in the tank. Are you Jewels mate? Link to comment Share on other sites More sharing options...
BT81 Posted September 16, 2013 Author Report Share Posted September 16, 2013 I have done that before, lucky I didn't start it....! Zx10 first fill up...doh Nope. Sure its not that for the bmw I'm not against it being user error though :-) Link to comment Share on other sites More sharing options...
BT81 Posted September 19, 2013 Author Report Share Posted September 19, 2013 So. 'I' checked the rec/reg and everything seemed fine. Change the air filter (not sure why that would be an issue...but needed changing) The 'BMW' are saying it needs a power commander! Seems a bit daft to me?.... Link to comment Share on other sites More sharing options...
BT81 Posted September 19, 2013 Author Report Share Posted September 19, 2013 Lorenzo stood and watched the whole time. Apart from when he removed some fairing and snapped something. Did he really make his own track bike. Makes me wonder :-) Link to comment Share on other sites More sharing options...
BudgetBoy Posted September 20, 2013 Report Share Posted September 20, 2013 Mmm,, if reg/rec is ok,, then check for air leaks as this will make it stall. use either wd40 or gas and see if revs rise while you are going around pipes (id use gas).go round inlets and exhaust outlets, all pipes near airbox/throttle bodies. Speaking of throttle bodies.. have you had the throttle bodies synced? if not get em done. getting there... Link to comment Share on other sites More sharing options...
lorenzo Posted September 20, 2013 Report Share Posted September 20, 2013 Again, I can sync the throttle bodies while you snap other bits off your bike phil, but you need to do some research, download a manual or something, firstly so you can see what the deal is on the efi light coming on at start up (is this normal?) and secondly so that we can solve the puzzle of how to disassemble the bloody thing! To others reading this: A BMW is not just unusual because it has funny forks, it is unusual because it's not built like a motorbike, it's other bits stuck together in a shape that people would generally recognise as being a motorbike as is in fact a mind-blowing puzzle of plastic bits, with some metal hidden inside. Link to comment Share on other sites More sharing options...
BT81 Posted September 22, 2013 Author Report Share Posted September 22, 2013 So. Doing a bit of looking around, still a power commander is recommended! Can't believe this is by along accounts a common fault and a pc3 is the fix Anyhow, being a cheap stake and refuse to pay list price for a pc3, I will look for maybe other options And so...this is all about changing the fueling thingy at low speeds Though this is the dyno graph from my bike Does it need to be enrichened at low speed? Surely it is already..... http://www.boosterplug.com/shop/boosterplug-bmw-r1200r-192p.html Confused Thoughts Link to comment Share on other sites More sharing options...
lorenzo Posted September 25, 2013 Report Share Posted September 25, 2013 That's lean at the bottom, not rich. That said, it's not massively lean, not enough to cause an issue. Your task should be to find out how to set the throttle position sensor correctly, it'd certainly be my next port of call. Link to comment Share on other sites More sharing options...
BT81 Posted October 9, 2013 Author Report Share Posted October 9, 2013 So. Next port of call. For this I need a workshop manual. Where can I download one from ....ideas And just an update Saturday. Rode to Rotherham. About 30/ 40 miles. No problems. An hour later I ride back. About half way into the ride. Into a corner . clutch in to change down. The revs drop....and....stall! Not sure how 'booster plugs / power commander will resolve this. But let's crack on with the throttle position ing stuff :-) Link to comment Share on other sites More sharing options...
lorenzo Posted October 9, 2013 Report Share Posted October 9, 2013 TPS sensor* would be my first port of call, assuming it is me doing the job, which it isn't of course, but for that not only will you need to find out how to set it, but you'll also need to find out how to battle your way into the impenetrable mass of panzer. *TPS sensor? That's the throttle position sensor sensor? I love a redundant acronym, the best I ever heard was an American journalist referring to the British BBC corporation. Link to comment Share on other sites More sharing options...
BudgetBoy Posted October 9, 2013 Report Share Posted October 9, 2013 When were the valve clearances last done? Could be this.. Link to comment Share on other sites More sharing options...
lorenzo Posted October 9, 2013 Report Share Posted October 9, 2013 You can fuck right off if you think I'm doing his valve clearances! Link to comment Share on other sites More sharing options...
BT81 Posted October 10, 2013 Author Report Share Posted October 10, 2013 I wouldn't think the valve clearances would have needed doing simply down to the mileage? Only got 10k on it And its OK. Even I know asking a mate to do the valve clearances is taking the p&%s - especially when I have you tasked over the next year to .....I have a list! :-) TPS. What is your thoughts and feelings on why it could be that? Though if its not the tps. Pc3 it is, or these booster plugs.... Link to comment Share on other sites More sharing options...
lorenzo Posted October 10, 2013 Report Share Posted October 10, 2013 Though if its not the tps. Rider error. Link to comment Share on other sites More sharing options...
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