12-16-2017, 05:40 PM
(12-16-2017, 02:57 PM)SportsterDoc_imp Wrote:(12-16-2017, 01:00 PM)pdedse_imp Wrote:(12-16-2017, 10:12 AM)SportsterDoc_imp Wrote: More emails between Max and popgun.
Max is favoring the TPS as being the cause of many of the issues.
We are continuing to research a replacement source.
In the meantime, how many CB1100 riders, who have experienced idle instability, have the following conditions:
1. Bike is parked outdoors, uncovered?
2. Bike is ridden in rain, especially heavy rain?
3. Bike is hosed off, occasionally/frequently?
If yes, to any of the above, has the TPS been unplugged (easy thumb release) and contacts checked for corrosion?
Note: Female/outer connector is facing up, which would likely funnel moisture, even though there may be an o-ring (oval) for the male/inner connector to press against.
For me:
1. Bike is parked outdoors, uncovered? Always garaged at night, on a two week trip, parked outside.
2. Bike is ridden in rain, especially heavy rain? Never heavy rain; light rain a few times
3. Bike is hosed off, occasionally/frequently? Have only washed the bike 2x; minimal water used.
In general, bike doesn't get washed much; I didn't see any sign of corrosion at the TPS connector.
Not likely a moisture/corrosion issue for you.
Because of the improvement after cleaning the TPS connector, it may simply be that the contacts were not mating well until disconnected and reconnected, whether cleaned or not.
Had you previously unplugged the TPS?
Do you recall ever bumping the TPS / TPS connector / TPS wirinig?
I had not previously unplugged the TPS connector--I didn't even know what it was.
I may have lightly sprayed the area with water after cleaning 2x, but no blasting spray.
jdvalero confirmed for me yesterday that the idle issue has not returned for him since he unplugged his TPS connector and "realigned"? one of the receiving holes of the connector. That was nearly a month ago.
He also mentions that his issue first started after a hard hiway run and wonders if vibration was what brought about a bad contact at the TPS connector.
I hold my breath each ride wondering if the problem will return, but I can tell you that since unplugging and cleaning the TPS connector that I've had the longest run of nearly no issue (slight dip to 900rpm 2x) since the problem started in July.
However, this stretch coincides with much cooler temps. We'll see in time. With Oregon rains and cold days, it's hard to get any rides in, but some dry weather is supposed to come middle of the week.