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Scott_Anderson
Site Admin
Joined: 05 Sep 2006
Posts: 3122
Location: Central Iowa, USA
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 Posted: Mon Aug 24, 2015 6:35 pm Post subject: |
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| Quote: | | It's only on deceleration, and only if the clutch is pulled in and the throttle completely closed when the engine is turning more than 3000 rpm or so........ |
I guess I missed this part in previous posts.......
If I'm not mistaken, the system is designed to cut fuel flow under the circumstances you just described.
There is a throttle position switch on the end of #4 TB, so when the system sees a closed throttle AND rpm's OVER 2500 it is supposed to cut off fuel until either: throttle is opened again, or rpm's drop under 2500.
Sounds like you may be experiencing a non-problem, or rather expected operation.
_________________
Ride safe.
1995 K1100LT 0302044
2017 FLHTK Ultra Limited
Garmin StreetPilot 2820
Garmin Zumo 550
Garmin Zumo XT
"One who does not ask questions is ashamed to learn" Danish proverb
1997 K1100LT 0302488(R.I.P.)
1997 R1100RT ZC62149(sold) |
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Jnclem
Big Brick Rider
Joined: 07 Jul 2015
Posts: 64
Location: Gunnison, CO.
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| Posted: Mon Aug 24, 2015 7:18 pm Post subject: |
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| Scott_Anderson wrote: | | Quote: | | It's only on deceleration, and only if the clutch is pulled in and the throttle completely closed when the engine is turning more than 3000 rpm or so........ |
I guess I missed this part in previous posts.......
If I'm not mistaken, the system is designed to cut fuel flow under the circumstances you just described.
There is a throttle position switch on the end of #4 TB, so when the system sees a closed throttle AND rpm's OVER 2500 it is supposed to cut off fuel until either: throttle is opened again, or rpm's drop under 2500.
Sounds like you may be experiencing a non-problem, or rather expected operation. |
Yes, but as you stated, the system is also supposed to restore fuel supply before the engine dies completely and the oil and charge light light up necessitating a restart. And, before you ask, the TPS test perfect.
I appreciate your input, but you might want to read the thread before posting. |
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Jim
Site Admin
Joined: 17 May 2003
Posts: 3841
Location: WHERETHEFUNNEVERENDS
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| Posted: Mon Aug 24, 2015 11:30 pm Post subject: |
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My apologies - I didn't take the time to go back and read all the posts...
_________________
Jim
1997 K1100LTSE 94,000 - still has gremlins!
1995 R100RT Classic 16,650 crashed - repaired!
1992 K75RTP 46,000
"We shall not all die, but we shall all be changed." |
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Jnclem
Big Brick Rider
Joined: 07 Jul 2015
Posts: 64
Location: Gunnison, CO.
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| Posted: Mon Aug 24, 2015 11:44 pm Post subject: |
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| Jim wrote: | | My apologies - I didn't take the time to go back and read all the posts... |
No worries. I'm just frustrated with trying to track down this problem. |
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BobZ(IL)
Rider in the Sky
Joined: 20 May 2007
Posts: 651
Location: Bourbonnais, IL
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| Posted: Tue Aug 25, 2015 9:14 pm Post subject: |
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You might try balancing the throttle bodies.
_________________
'93 K1100LT
'78 R100S
'05 R1200GS
BMWMOA, CRBMWOA, ABC, K11OG #997
Live well, do good work, enjoy the ride. |
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Jnclem
Big Brick Rider
Joined: 07 Jul 2015
Posts: 64
Location: Gunnison, CO.
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| Posted: Wed Aug 26, 2015 12:08 am Post subject: |
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| BobZ(IL) wrote: | | You might try balancing the throttle bodies. |
I have a car tune on order. I'll do it as soon as it gets here. Thank you.
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'93 K1100LT, '89 R100GS |
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gpzoduibh
Big Brick Rider
Joined: 10 Aug 2007
Posts: 70
Location: Co. Meath Ireland
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| Posted: Wed Sep 16, 2015 2:11 am Post subject: |
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Just wondering if your bike has the vacuum control to the fuel regulator if its faulty and not dropping the pressure on a chopped throttle maybe its flooding....
Regards Bill
_________________
1995 Grinnall Scorpion III(1990 K100 16v motor)
2010 KTM 450 EXC
Moto Guzzi V50 powered hovercraft !
1989 K100RS (8V) special edition
1974 Yamaha DT360
1972 Sanglas 400 T
1980 Yamaha XS110-Watsonian Palma sidecar
1966 Bridgestone 175 dualtwin
1980 BMW R100RS
1979 Bultaco sherpa T 350
1979 Yamaha DT175MX
1990 Honda XR250R |
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BobZ(IL)
Rider in the Sky
Joined: 20 May 2007
Posts: 651
Location: Bourbonnais, IL
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| Posted: Wed Sep 16, 2015 9:45 pm Post subject: |
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Maybe you've got her fixed by now, but if not, another idea might be the throttle position sensor which is a simple adjustment.
_________________
'93 K1100LT
'78 R100S
'05 R1200GS
BMWMOA, CRBMWOA, ABC, K11OG #997
Live well, do good work, enjoy the ride. |
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Jnclem
Big Brick Rider
Joined: 07 Jul 2015
Posts: 64
Location: Gunnison, CO.
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| Posted: Mon Sep 21, 2015 9:21 am Post subject: |
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Just an update, the problem continues, but I got tired of trying to find it for now. All it takes is a slight change in riding style to never allow it to happen. Other than that one annoying issue, the bike runs great. I'm sure I'll get back to trying to track it down one of these days. I did find one slight vacuum leak around the number 3 intake tube, so I need to address that.
I'm not sure about the vacuum control to fuel regulator suggestion. I don't even know where to look for that, but I'll check into it. TPS was the first thing checked, it tested perfect.
Thanks for all the suggestions.
_________________
'93 K1100LT, '89 R100GS |
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Scott_Anderson
Site Admin
Joined: 05 Sep 2006
Posts: 3122
Location: Central Iowa, USA
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| Posted: Mon Sep 21, 2015 5:49 pm Post subject: |
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| gpzoduibh wrote: | Just wondering if your bike has the vacuum control to the fuel regulator if its faulty and not dropping the pressure on a chopped throttle maybe its flooding....
Regards Bill |
The fuel pressure regulator on the 1100's don't use vacuum.
_________________
Ride safe.
1995 K1100LT 0302044
2017 FLHTK Ultra Limited
Garmin StreetPilot 2820
Garmin Zumo 550
Garmin Zumo XT
"One who does not ask questions is ashamed to learn" Danish proverb
1997 K1100LT 0302488(R.I.P.)
1997 R1100RT ZC62149(sold) |
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