2004 R1150RS Reinstalling fuel injector

[beemermyke]

Paul, we did check that (coincidentally, an online search an hour ago revealed a post where you and one other member had suggested that). Basically, we've determined that the right cylinder is not firing for reasons unknown to us shade tree mechanics. When we say "not firing", the right pipe is not getting hot at all. We swapped the components that Moondog describes to see if we could get the right cylinder working. On that cylinder, we checked spark on the lower plug and upper plug, and it was present. We checked for fuel flow to/thru the injectors, it was present as well. So we have fuel and spark, and air does not seem to be an issue because we checked down the snorkel going to the air filter box and the box itself; no blockage. We had a spare (lightly used) upper and lower plug so we swapped them out on the right cylinder to rule out a damaged plug (oddly enough, we noted that the lower plug had a piece of carbon between the electrodes, but it came off easily). The brake bleed was done on both circuits, no issues there, but we're thinking that it's too much of a coincidence that a perfectly-running bike is now not so perfect after performing some basic maintenance. Lastly, I hooked a GS-911 to it, no unusual codes except for "brake fluid low", which we attributed to the recent service and we were able to clear it without issue. Running the bike (very rough running) did not trip any additional codes on the GS-911.

 

[PGlaves]

I checked that Paul. It's a wee bit crooked but looks set properly. Beemer myself alerted me earlier. I saw that on my K1100 once.

Remove the right side air tube and verify by looking at it and poking it, that the throttle plate is closed against the throttle stop in what would be the idle position with the "choke" off.

If you find that it isn't fully closed you will need to check the top end of the cable up at the bell-crank box.

 

[MOONDOG59]

Will check in the AM Paul. I'm actually going to check the cable at handle bar. I had replaced bad shrink wrap in that area and in process may have dislodge cable; and check air tube. Paul is there anything you don't know?

 

[MOONDOG59]

Air tube pulled along with throttle body (TB). Found throttle plate open. But I am not sure if I had opened it removing the TB. "Choke" cable seemed tight so sprayed the lever with WD40. Double checked both plugs and primary coil. The end of the right coil was "bent". I know, it's rubber but it looks like the coil boot may not have been engaged over the plug. Appears that the may have slipped between the plug and cylinder wall. Lubed boot, reinstalled coil and started the bike. Runs well. The moral of the story is I am not sure what was actually wrong. We had swapped coils and still ran bad. Swapped coils again and it runs well. Thanks all for help especially the Muscle-bound monkey man, Tim the pilot and Paul Glaves

 

[PGlaves]

I'm glad it is running well. We don't always know exactly which thing we did fixed things.

 

[MOONDOG59]

Agreed.