General Category > General Discussion
2010 K1300GT
Honolulu:
New Beru coils, four of them, $150 each (on sale!). NGK plugs, $12 each.
Jughead:
--- Quote from: Honolulu on May 02, 2019, 08:05:43 AM ---New Beru coils, four of them, $150 each (on sale!). NGK plugs, $12 each.
--- End quote ---
[emoji106] Have you check which cylinders, if any are running colder than the others?
Honolulu:
At first, two header pipes were cold. After replacing coils, all got hot.
Bench testing coil primaries (center pin to sparkplug) finds one coil has infinite resistance, so that coil is shot. I really should test more carefully, since it's hard to get the ohmmeter test leads into the connector. Also should mod my test leads to check resistance on pins 1-3. However that's water under the bridge since the new coils and plugs are in, and have been run a few minutes.
Original question was whether any one can post "normal" readings for all the real-time monitoring performed by the GS911 on this 2010 K1300GT. Since not even the manufacturer has bothered to reply, I can only suppose they don't know... but how could they not?
Jughead:
--- Quote from: Honolulu on May 02, 2019, 08:56:28 AM ---Original question was whether any one can post "normal" readings for all the real-time monitoring performed by the GS911 on this 2010 K1300GT. Since not even the manufacturer has bothered to reply, I can only suppose they don't know... but how could they not?
--- End quote ---
There is no such thing as "Normal" reading when it comes to lambda values. The readings will change based on the fueling at the particular moment the reading was taken. Since the fueling (and thus the air/fuel ratio) changes with virtually every stroke the pistons take, it is impossible to even predict what it is going to be on the next stroke.
What you need to do is to display the graph, and then make sure the lambda values jump up and down between rich and lean. The graph should look like this:
In the graph above, the bike is fitted with 2 lambda sensors, thus the yellow and violet graphs. As you can see here, even 2 sensors on the same motor do not react the same and do not display the same readings. The GT only has one sensor, so you will only have the one graph.
Honolulu:
Thanks for that plot, and as mentioned above I have seen proper lambda sensor real-time readout on my bike several months ago. When the bike ran poorly, the sensor value wavered slightly around 0.8 volts - so it was running rich and the cat was glowing.
I will warm up the bike again this weekend and look at the lambda sensor voltage. I think that having replaced coils and plugs, I'm in a different running scheme than before, but haven't checked into it. Coming soon.
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