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Hi all,
I have a strange unsolved problem with my 84 Aspencade GL1200. I am looking for ideas. I noticed earlier in this riding season that when my bike was warm (running for a while) and very low on fuel (usually less than 1/4 tank) and typically going on uphill incline, that all of the sudden it would start to loose power and seam to only be running on two cylinders. At first, I could get to level ground, and rev it a bit and it would seem to recover. It got a bit worse, and I would have to let it cool down. Also filling the tank would seem to help out right away also. It seemed like the fuel pump may have been acting up, so I replaced the fuel filter and fuel pump. It seemed to be running better and I thought the problem was cured. I then let the tank run really low (1 bar flashing) and while on the highway, the problem occured again. I was carrying afew gallons of gas in my trunk so I filled it up (which took it over 1/2 tank) and tried to fire it up again. It would not start this time. I sat there for over a half hour and finally managed to get it to run, but it still was running only on 2 cylinders. I had to nurse it back to a shop where it now sits. I ran it today and it seemed to run fine, I could not get it to act up. We thought possibly something electrical (like Pickup coils, etc..) but my mechanic mentioned that in cases where he has seen these problems, the typically will act up when the temp rises. It was not acting up today. We drained the tank to nearly empty and tried to duplicate today, but no luck. The gas exhaust did smell extremely rich and was burning our eyes when running today, so he is wondering if possibly plugs, or plug caps might be intermittantly failing. another thought was possibly something in the gas tankthat might beblocking or prohibiting the siphon effect from the gas pump...cracked or leaking sump line that can act up when very low on fuel?Not sure how this fits the thermal factor in though. I am stumped and I am curious if anyone has heard of such a strange problem.
Sorry to be long winded, but wanted to be detailed.
Thanks
Dave
Hi all,
I have a strange unsolved problem with my 84 Aspencade GL1200. I am looking for ideas. I noticed earlier in this riding season that when my bike was warm (running for a while) and very low on fuel (usually less than 1/4 tank) and typically going on uphill incline, that all of the sudden it would start to loose power and seam to only be running on two cylinders. At first, I could get to level ground, and rev it a bit and it would seem to recover. It got a bit worse, and I would have to let it cool down. Also filling the tank would seem to help out right away also. It seemed like the fuel pump may have been acting up, so I replaced the fuel filter and fuel pump. It seemed to be running better and I thought the problem was cured. I then let the tank run really low (1 bar flashing) and while on the highway, the problem occured again. I was carrying afew gallons of gas in my trunk so I filled it up (which took it over 1/2 tank) and tried to fire it up again. It would not start this time. I sat there for over a half hour and finally managed to get it to run, but it still was running only on 2 cylinders. I had to nurse it back to a shop where it now sits. I ran it today and it seemed to run fine, I could not get it to act up. We thought possibly something electrical (like Pickup coils, etc..) but my mechanic mentioned that in cases where he has seen these problems, the typically will act up when the temp rises. It was not acting up today. We drained the tank to nearly empty and tried to duplicate today, but no luck. The gas exhaust did smell extremely rich and was burning our eyes when running today, so he is wondering if possibly plugs, or plug caps might be intermittantly failing. another thought was possibly something in the gas tankthat might beblocking or prohibiting the siphon effect from the gas pump...cracked or leaking sump line that can act up when very low on fuel?Not sure how this fits the thermal factor in though. I am stumped and I am curious if anyone has heard of such a strange problem.
Sorry to be long winded, but wanted to be detailed.
Thanks
Dave