• Welcome, Guest! We hope you enjoy the excellent technical knowledge, event information and discussions that the BMW MOA forum provides. Some forum content will be hidden from you if you remain logged out. If you want to view all content, please click the 'Log in' button above and enter your BMW MOA username and password.

    If you are not an MOA member, why not take the time to join the club, so you can enjoy posting on the forum, the BMW Owners News magazine, and all of the discounts and benefits the BMW MOA offers?

  • Beginning April 1st, and running through April 30th, there is a new 2024 BMW MOA Election discussion area within The Club section of the forum. Within this forum area is also a sticky post that provides the ground rules for participating in the Election forum area. Also, the candidates statements are provided. Please read before joining the conversation, because the rules are very specific to maintain civility.

    The Election forum is here: Election Forum

Story of a new guy - when small things matter

downhomer

New member
I have a new-to-me 2012 F800GS. In excellent shape, runs awesome. Being a conscientious new owner I decided to make sure my toolkit had the right stuff and proceeded to takeoff the various bits to access the air filter, battery and spark plugs. No issues, no drama. Removed battery, checked to make sure my plug wrench it etc etc. Put it all back together and now when the bike starts, it misfired a couple of time then stoped.

I assumed that I had left a connector off or loose, but for the life of me, I couldn't locate the culprit.

Here is some other data:
1. Bike started and idled fine on either cylinder by itself (I thought I might have done something to the coil). Could unplug either side, with no problem starting/idle. Both in...unhappy!.
2. Double checked every connector I could find. No probs found.
3. Bike came with a gs911 gismo. No faults coming up (which makes me wonder how useful this gadget is).

Tried starting with air intake all snug and also hanging off the bike. No changes either way. For starting and idling the only thing that makes a difference is two cylinders vs one.
Must some sort of timing issue by the behaviour, but from where?.

Given I actually didn't do anything to any setting, adjustment etc, I must have dislodged something. I was hoping there is some semi-secret "everyone who has a bmw knows not to ....." answer.

Searched the forums but nada.

Turns out it was an FNG problem. (F$@k'n New Guy).

The little hoses at the bottom, seat-side of the air take system that I mistook for vents were actually vacuum lines for timing. A buddy came over for a fresh set of eyes. After a few minutes he asked about them. Re-connected..viola! Runs like a charm.

Something simple but easy to miss if you don't know better.
 
Welcome to the forum!
I’m a big believer in the “fresh eyes” theory.
Enjoy.
Gary
 
Back
Top