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Stumble just off idle
I have 85 ltd just of idle I have a slit stumble once warmed up It runs great cold. It will have a slit ruff running also up to about 50. You twist the throttle it'll take off big time. I have balanced the throttle bodies from side to side, replaced the throttle position sensor, replaced the plugs to no avail. I've pretty much run out of ideas. Anyone out there got any other ideas. .Huh
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#1 02-14-2015, 05:18 PM
I am a carburetor guy, so I am of no direct help.
However:
Reading the FI section of this sight should have some good insights.
There are other sights which should have valuable information as well.

Read, read and re-read anything you can get yours hands on.
The answers are out there.

Good Luck.

-Ride On

enjoying the view from the saddle....... due mainly to the people and information found within this site
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#2 02-15-2015, 12:03 AM
have you checked that the new TPS has the correct initial setting (.475-,495 v)and that the resistance is changing uniformly throughout its range using an analog meter (digital will not work)

1987 Aspencade 129K
1986 SEI 93K
2014 Tri-Glide HD 17K

Hancock,MD
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#3 02-15-2015, 07:59 PM
(02-14-2015 05:18 PM)dbduely Wrote:  I have 85 ltd just of idle I have a slit stumble once warmed up It runs great cold. It will have a slit ruff running also up to about 50. You twist the throttle it'll take off big time. I have balanced the throttle bodies from side to side, replaced the throttle position sensor, replaced the plugs to no avail. I've pretty much run out of ideas. Anyone out there got any other ideas. .Huh

While this reply is over a year later, I had a similar problem with my 86 Aspy. It ended up being vacuum lines that were cracked and when heated up opened up. I replaced them and problem was solved. Hope this helps.

Gavin
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#4 01-09-2017, 01:08 PM
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