Hope I got the subject correct. Out yesterday for a trip to a local coffee shop for coffee and coconut cream pie. Felt a miss when on the highway, then when I hit town, the bike started to miss and lose power and eventually quit. No error codes on the ECU. Let it sit for a bit. Had a few people come by to assist with a push into the parking lot if needed - very nice to see. After about 20 minutes, started, idled well and I continued to the coffee shop. Had the coconut cream pie - moral imperative.
Went to come home, bike started right up. About a Km down the road, started to miss, then quit. Pulled into a parking lot, started then quit. Did this a few times. Called the local towing and while waiting I started the bike and let it idle for some 40 minutes, all was well. Didn't tempt the fates so bike was trailered to the house. Started and drove into the garage.
The bike idled well, but since it was not under load, expect that whatever was wrong did not get hot enough to fail.
Checked fuel pressure and was in spec. Thinking it's the coils. Will start and let warm up today then take around the block. Hopefully it will duplicate what happened yesterday. Coils are 34 years old.
Last year when I was having the electrical issue that resulted in my changed back to the OEM coils and wires, I noticed that the engine temp would be hotter than normal, and would get to operating temp and to the temp where the rad fan would come on quicker. I noticed this in the last week. Seems these engines are sensitive to a weak or lack of spark to a plug.
Will replace the plug wires first, have the wire. New boots, wires and coils cannot hurt.
Since there were no error codes, do not expect the sensors to be out of spec.
Ns sensor was replaced last year and should be good. TPS was as well.
Checked the Gr/Gl sensors as well last year, in spec.
Will recheck the sensors, but still leaning towards the coils.
More to follow.
Cheers
Went to come home, bike started right up. About a Km down the road, started to miss, then quit. Pulled into a parking lot, started then quit. Did this a few times. Called the local towing and while waiting I started the bike and let it idle for some 40 minutes, all was well. Didn't tempt the fates so bike was trailered to the house. Started and drove into the garage.
The bike idled well, but since it was not under load, expect that whatever was wrong did not get hot enough to fail.
Checked fuel pressure and was in spec. Thinking it's the coils. Will start and let warm up today then take around the block. Hopefully it will duplicate what happened yesterday. Coils are 34 years old.
Last year when I was having the electrical issue that resulted in my changed back to the OEM coils and wires, I noticed that the engine temp would be hotter than normal, and would get to operating temp and to the temp where the rad fan would come on quicker. I noticed this in the last week. Seems these engines are sensitive to a weak or lack of spark to a plug.
Will replace the plug wires first, have the wire. New boots, wires and coils cannot hurt.
Since there were no error codes, do not expect the sensors to be out of spec.
Ns sensor was replaced last year and should be good. TPS was as well.
Checked the Gr/Gl sensors as well last year, in spec.
Will recheck the sensors, but still leaning towards the coils.
More to follow.
Cheers