67289
New member
First post here. Should make an intro but not much to say. Anyway:
My background: Riding 30+ years. Flying little planes an equal time. FAA A&P mechanic but occupation is mold maker.
Bike's background: 1995 R1100RSL. 45K miles. I bought new 11/94. Performance wise bone stock. Only minor farkle: solo seat, tail cowl, etc.
Situation: For whatever reasons which most find irrelevant, this bike was dormant for 24 months. I now want to resume its use. It is being recalcitrant in awaking from its slumber. I contacted two dealers about working on this...one denied it outright and the other was presenting a very unenthusiastic attitude. I decided to attempt this myself. This cycle was usually serviced by the dealer so I have limited data for servicing. First step order manuals and they are on their way. As yet I have no schematic.
What's going on: I have checked some things over and have a new battery installed. All lights operate as should when starting: Dual ABS flashing in synch, RID is powered up and appears normal including clock function. All remaining lights and horn function. What fuel was in tank had been treated prior to storage with Stabil. I did not drain this remnant but did add fresh fuel...perhaps a gallon. I would estimate a total of 2 gallons present. Engine cranks but we get no start up. Raw fuel was introduced thru airbox and we get start up until fuel is expended. Oil pressure light extinguished during the brief start. This would indicate we have a sound (enough for start up and further testing) ignition system but a problem in fuel delivery.
OK. Sound reasonable so far? Now this gets foggy for a non-electronic EFI person as me! I have read and searched as much as I could here and another forum. Please bear with me if this has been covered a million times!
I noticed I heard no fuel pump spool up during initial power on.
I tried to remove the "out" line from the tank and power up to see if fuel would come out. Negative.
Check fuse #6. Fuse is sound but swapped it with spare.
Swapped relay #6 with horn relay. Same result.
Perhaps the fuel pump is dead. We should pull the filter anyway after layup as this. So off with the tank and pump is removed. Looks sound with no remarkable issues. When connected to a 15 AMP battery charger, the pump vibrates mildly and draws 9 amp. The lead end warms very rapidly. Removed pump from mounting plate/tube and removed strainer. The impeller appears locked up. At least I think that is the impeller! Thoughts?
I have ordered a new pump kit and all the sundry supplies to make the replacement. We await their arrival.
In the meantime, I decide to make sure power was headed to the pump. I power up the bike, all the normal indications as discussed above. When a voltmeter is connected to grnd and the other lead to the green wire pin in the chassis's connector for the fuel pump/gage assembly, I get no power. I have plugged the pump/gage assembly (less the pump so the terminals that attach to the pump studs are free and touching nothing) back into the chassis plug and plug in the ground. A check for voltage across the two pump ring terminals shows no voltage present. Continuity was checked at the bulkhead terminal of the plate so the circuits are sound thru the plate.
That is the question I have today (I am sure there will be more before this runs if you folks will oblige me!): Why is there no voltage present at the chassis plug fuel pump power pin? Pressure sensor? Ideas? Help?
Thanks in advance for your patience and help!
My background: Riding 30+ years. Flying little planes an equal time. FAA A&P mechanic but occupation is mold maker.
Bike's background: 1995 R1100RSL. 45K miles. I bought new 11/94. Performance wise bone stock. Only minor farkle: solo seat, tail cowl, etc.
Situation: For whatever reasons which most find irrelevant, this bike was dormant for 24 months. I now want to resume its use. It is being recalcitrant in awaking from its slumber. I contacted two dealers about working on this...one denied it outright and the other was presenting a very unenthusiastic attitude. I decided to attempt this myself. This cycle was usually serviced by the dealer so I have limited data for servicing. First step order manuals and they are on their way. As yet I have no schematic.
What's going on: I have checked some things over and have a new battery installed. All lights operate as should when starting: Dual ABS flashing in synch, RID is powered up and appears normal including clock function. All remaining lights and horn function. What fuel was in tank had been treated prior to storage with Stabil. I did not drain this remnant but did add fresh fuel...perhaps a gallon. I would estimate a total of 2 gallons present. Engine cranks but we get no start up. Raw fuel was introduced thru airbox and we get start up until fuel is expended. Oil pressure light extinguished during the brief start. This would indicate we have a sound (enough for start up and further testing) ignition system but a problem in fuel delivery.
OK. Sound reasonable so far? Now this gets foggy for a non-electronic EFI person as me! I have read and searched as much as I could here and another forum. Please bear with me if this has been covered a million times!
I noticed I heard no fuel pump spool up during initial power on.
I tried to remove the "out" line from the tank and power up to see if fuel would come out. Negative.
Check fuse #6. Fuse is sound but swapped it with spare.
Swapped relay #6 with horn relay. Same result.
Perhaps the fuel pump is dead. We should pull the filter anyway after layup as this. So off with the tank and pump is removed. Looks sound with no remarkable issues. When connected to a 15 AMP battery charger, the pump vibrates mildly and draws 9 amp. The lead end warms very rapidly. Removed pump from mounting plate/tube and removed strainer. The impeller appears locked up. At least I think that is the impeller! Thoughts?
I have ordered a new pump kit and all the sundry supplies to make the replacement. We await their arrival.
In the meantime, I decide to make sure power was headed to the pump. I power up the bike, all the normal indications as discussed above. When a voltmeter is connected to grnd and the other lead to the green wire pin in the chassis's connector for the fuel pump/gage assembly, I get no power. I have plugged the pump/gage assembly (less the pump so the terminals that attach to the pump studs are free and touching nothing) back into the chassis plug and plug in the ground. A check for voltage across the two pump ring terminals shows no voltage present. Continuity was checked at the bulkhead terminal of the plate so the circuits are sound thru the plate.
That is the question I have today (I am sure there will be more before this runs if you folks will oblige me!): Why is there no voltage present at the chassis plug fuel pump power pin? Pressure sensor? Ideas? Help?
Thanks in advance for your patience and help!