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Quote:
Originally Posted by brentw1 View Post
if neither fired then you have two bad stick coils.
they will run on one spark plug not well,
I usually pick up spares off of ebay
just check you had the side stand up etc. and it should have run.
they are the same for lots of models even the r1200
Yeah... at first I was like... did I leave the side stand down? ha ha But no.. I tried starting and even gave it a bit of gas and WOW... thing backfired and sounded like I just shot a gun off!

There must be something the other end of the coils plug into right? Like.. that couldn't be bad could it?
Old 04-16-2017, 01:43 PM
  Pelican Parts Technical Article Directory    Reply With Quote #21 (permalink)
Brent
 
Join Date: Dec 2012
Location: santa cruz
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they go to the ecu ive never seen a bad one,
and Ive seen almost every bike of this age i've worked on had at least one stick coil bad,
I had a 1150 with two bad stick coils and half of the lower coil bad.
it had been maintianed by a bmw mechanic for a local police dept.
but it is kind of a symptomless failure if you have only one bad you probably wouldnt have
noticed it.
there are several versions of this coil attempting to improve reliability.
Old 04-16-2017, 02:27 PM
  Pelican Parts Technical Article Directory    Reply With Quote #22 (permalink)
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Quote:
Originally Posted by brentw1 View Post
they go to the ecu ive never seen a bad one,
and Ive seen almost every bike of this age i've worked on had at least one stick coil bad,
I had a 1150 with two bad stick coils and half of the lower coil bad.
it had been maintianed by a bmw mechanic for a local police dept.
but it is kind of a symptomless failure if you have only one bad you probably wouldnt have
noticed it.
there are several versions of this coil attempting to improve reliability.
OK, great thanks!! Bought some Beru ones from https://www.euromotoelectrics.com/Ignition-Stick-Coil-BMW-R1100-R1150-Dual-Spark-p/bmw-scoil15ds.htm

Looking forward to my bike running good again! Now the wait to get them shipped up here to Eastern Canada!
Old 04-16-2017, 02:31 PM
  Pelican Parts Technical Article Directory    Reply With Quote #23 (permalink)
Brent
 
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yeah I usually pick them up off of ebay for 20-30$
the r1200 ones seem to be better.
Old 04-16-2017, 02:47 PM
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I'm a little late to the party. I had one of my stick coils go really bad at 18,000 miles on my 2004 R1100s. I replaced them both at the same time. I have heard from a few different people that 18,000 miles is around the time they start to act up. I have 46,000 miles on it now and have not had a problem with them since.
Old 04-16-2017, 02:56 PM
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Yeah... that's longer than I'll have the bike most likely! I have my eye on a Ducati 959 for next summer! ha ha
Old 04-16-2017, 04:33 PM
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So, it WAS the coils! Put new ones in last night and it runs like new!! YAY! Thanks for all your help everyone!
Old 04-27-2017, 05:47 AM
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Quote:
Originally Posted by brentw1 View Post
yeah I usually pick them up off of ebay for 20-30$
the r1200 ones seem to be better.
All the coils I see on eBay are in the $125+ range. Are you talking used? At 13K having similar crappy starting and 4-5000 rpm bogging down when I ask it to do something extra. Don't want to throw $250 at it on spec. $100 maybe.
Old 08-31-2017, 04:50 PM
  Pelican Parts Technical Article Directory    Reply With Quote #28 (permalink)
Brent
 
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yes used, lacking the desire to evaluate which new ones might be more reliable,
I just get used ones and keep spare ones, but sofar all of the ones I have replaced are still running.
Old 08-31-2017, 05:43 PM
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Glad coils did it for somebody. Just put in a new pair of Berus which did not solve my starting problem, though they do spark better than the old ones when grounded to the rear drive arm pivot. THEN I tested the injectors, not BEFORE dropping $200+ on coils, even with a discount code at Bob's, then waiting 11 days for free shipping. When I crank it they don't seem to spit the least bit, so maybe it's fuel after all. Just adjusted the valves but can't exactly sync the TBs if it won't start.
Old 09-13-2017, 06:54 PM
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Removed tank, inspected gas tubing inside, all intact. Reassembled and went back to retest the injectors, and discovered that I had not reseated the electrical connector fully on either injector before pushing home the retaining clip. VROOOM! *palm smacks forehead*
Guess the stick coils fixed it after all. 13,000 miles seems a bit premature, but maybe 14 years is the more important number.
Old 09-21-2017, 10:34 AM
  Pelican Parts Technical Article Directory    Reply With Quote #31 (permalink)
Brent
 
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just cost you some time, at least you didnt replace all of the fuel system as well.
you can hear the injectors tick at idle if they are being driven.
Old 09-21-2017, 10:42 AM
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Thanks. I'll give a test listen the next time I get it started. I think I damaged my starter from overcranking when the coils were going bad. Partly melted the internal plastic gear collar of the planetary gear which allowed the grease cover to contact the windings, slowing the cranking down to the point where it's real difficult to start. Repair parts on the way. Purrs like a cougar once it does start.
Old 09-25-2017, 02:14 PM
  Pelican Parts Technical Article Directory    Reply With Quote #33 (permalink)
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