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#1016586 - 08/10/18 03:09 PM Re: 95 R1100RSL Stalling, cutting out, hard to restart [Re: JimmR75]  
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tallman Offline
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tallman  Offline
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Tallahassee, Florida
I'd bet on the gas.
Also consider adding some snake oil water in gas treatment.
We sold one that actually worked but of course I don't recall name.
Classic bad gas rooutine, IMO.
If you haven't redone HES, do it at home, easier.
Best wishes.


If my mind wanders, should I follow it?
Tim
Conch Town Krewe
2003 K 1200 GT
1996 R 1100 RSL
1980 R 100 RT
1972 R 75
1968 R 50
All now gone...

#1016754 - 08/12/18 12:02 PM Re: 95 R1100RSL Stalling, cutting out, hard to restart [Re: JimmR75]  
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JimmR75 Offline
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Steps taken to date:

1. Defueled as completely as possible without removing the tank. Refueled with two gallons of fresh fuel. Added fuel treatment to address any latent water in the system.

Bike started and ran normally. Rode a few miles doing laps of the netighborhood with no problems. Began doing loops further from home and at about the five mile mark it started cutting out again, ultimately stalling. Worked my way back home with several episodes of stalling with difficult restarts, as in the original episode.

2. Pulled the tank and inspected the connection and wiring on the HES harness referred to in previous responses. The wiring and connectors look brand new with no deterioration of insulation. Connector pins are clean.

My questions now are if something could be failing due to heat. It ran fine for 10 minutes or so and then ran properly again in the garage after getting it home and letting it cool down.

As always, any response or suggestions are appreciated.

#1016762 - 08/12/18 02:31 PM Re: 95 R1100RSL Stalling, cutting out, hard to restart [Re: JimmR75]  
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dirtrider Offline
The Oracle
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Originally Posted by JimmR75


My questions now are if something could be failing due to heat. It ran fine for 10 minutes or so and then ran properly again in the garage after getting it home and letting it cool down.

As always, any response or suggestions are appreciated.


Morning JimmR75

A number of things can fail or act up due to heat--

HES
ignition coil
o2 sensor
Motronic
TPS

Even an internal fuel system leak can allow more by-pass when hoses are hot.

The Coil (secondary) can be sort of tested hot by just removing both spark plug wires from the spark plugs then measuring the resistance from the metal in one side plug wire to the metal in the other side plug wire (this measures both plug wires & the coil secondary in series) -- You want to see something in the 17k to 24k range on a hot coil depending on which coil your 1100 has)

On the HES check- not easy as the usual wire insulation problem area is way down under the front cover just above the HES plate & USUALLY requires the outer pig tail covering to be cut off to even see the problematic area.

o2 sensor on the 1100 can usually be ruled in or out by just removing the CCP from the fuse box then riding the bike to see if the problem is then gone.

TPS output voltage can be measured plus a closed throttle to open throttle voltage sweep done to check for even & linear tracking.

Motronic is about impossible to test or monitor for the problem that you are seeing (I would put it way down the list of probabilities anyhow)






D.R. ___
Sent from my rotory dial wall phone!
#1016844 - 08/13/18 01:35 PM Re: 95 R1100RSL Stalling, cutting out, hard to restart [Re: JimmR75]  
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JimmR75 Offline
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Thanks very much, great information all around.

Before I start any disassembly that is not required, am I right in my initial observation that the exhaust system has to come off to get the plastic engine front cover out? My inspection and description of the connector on my HES harness is at the connection on the right side up under the tank. The info from dirtrider above tells me that access to the suspect connection requires removal of the front cover.

Thanks in advance for any guidance.

#1016846 - 08/13/18 01:57 PM Re: 95 R1100RSL Stalling, cutting out, hard to restart [Re: JimmR75]  
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dirtrider Offline
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Originally Posted by JimmR75
Thanks very much, great information all around.

Before I start any disassembly that is not required, am I right in my initial observation that the exhaust system has to come off to get the plastic engine front cover out? My inspection and description of the connector on my HES harness is at the connection on the right side up under the tank. The info from dirtrider above tells me that access to the suspect connection requires removal of the front cover.

Thanks in advance for any guidance.


Morning JimmR75

Yes, the front (plastic) cover needs to be removed to access the area of the HES that usually causes the problems.

Some cut the cover crosswise then remove it in 2 pieces (Personally I don't cut them so can't tell you the exact place to cut across) but the info should be easily available online with a search. The upside to cutting is that allows much easier cover removal if problems encountered while out on the road.

I usually remove one of the shark fins (or both) as that usually allows just enough wiggle room to get the cover out with finesse, pulling/tugging, and/or correct shop language. --per Jim's post

I can't remember on the early 1100 RS but that engine probably has the oil tube that has to be disconnected & swung up out of the way to get the belt off or HES out (I'll have to check on this when I get back to my shop)

Some others may have other options or suggestions for removing that cover on the early 1100RS so maybe let this thread run a while before jumping to it.

It's not really the connection of the pig tail harness to the HES, it is usually in the pig tail wires just above the HES as that is usually where the problem is found but the wire insulation can degrade about anywhere in the HES pig tail all the way to the top.



Last edited by dirtrider; 08/13/18 03:49 PM.

D.R. ___
Sent from my rotory dial wall phone!
#1016851 - 08/13/18 02:29 PM Re: 95 R1100RSL Stalling, cutting out, hard to restart [Re: JimmR75]  
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roger 04 rt Offline
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The right side shark fin is quick and easy to remove. I favor that over cutting the cover, which just leaves a gap for crud to find its way in through. Once you do that the removal is trivial.

#1016856 - 08/13/18 02:51 PM Re: 95 R1100RSL Stalling, cutting out, hard to restart [Re: JimmR75]  
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Jim Moore Offline
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Does the RSL have the shark fin?


Jim Moore Jax, FL '99 R1100S '02 R1150GS
#1016859 - 08/13/18 03:39 PM Re: 95 R1100RSL Stalling, cutting out, hard to restart [Re: Jim Moore]  
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JamesW Offline
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Florence, Oregon
Originally Posted by Jim Moore
Does the RSL have the shark fin?


My RSL doesn't. Built 06/93


James
'93 R1100RSL / '10 FJR1300A
#1016860 - 08/13/18 03:46 PM Re: 95 R1100RSL Stalling, cutting out, hard to restart [Re: Jim Moore]  
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dirtrider Offline
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dirtrider  Offline
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Originally Posted by Jim Moore
Does the RSL have the shark fin?


Morning Jim

Good catch. The 1100RS doesn't have any lower front plastics therefore no shark fins.


D.R. ___
Sent from my rotory dial wall phone!
#1016868 - 08/13/18 04:58 PM Re: 95 R1100RSL Stalling, cutting out, hard to restart [Re: JimmR75]  
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JimmR75 Offline
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I was not clear what was referred to as the "shark fin", so the clarification above regarding my RSL helps.

The tupperware and fuel tank are currently removed providing easy access, but I am not clear on how the plastic front cover is supposed to come out. The exhaust headers surround / retain it when it is slid down.

I do not want to cut it as described in previous suggestions.

Thanks in advance for any assistance.

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