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Ok, this may end up being a long post, hopefully I'll be able to be descriptive enought that one of the GS Geniuses will be able to help out.
First some history after I got the bike last fall and started maintenance on it I noticed a fuel filter in place, this is good. However because of the filter the fuel line is kinked about an inch or two after the filter. 8O I ran the bike like this all last fall with the petcock in the PRI position. (I believe the kink saved me from gas overflowing the carbs etc) Anyway, this spring I switched the petcock over to the ON position to start utilizing it propperly. Been running all year like this with only one problem. I was running full throttle (I mean full.. :twisted: ) and the bike died like it ran out of gas. I re-primed the carbs, started back up and was back on my way. (Figured it was the Guy upstairs way of tellin me to slow it down). Been running pretty much fine ever since, even last saturday when I put 100+miles on it heading down to Gettysburg.
Now to the present. Tuesday evening I took it out for a quick spin (about 30 min) and filled up close to the end of the ride so I wouldn't have to stop on the way to work yesterday morning. Ran fine for that, and for the ride to work yesterday. However after leaving work yesterday I was heading to see my girlfriend and noticed that I seemed to have a little bit of a Bog down on accelleration. So I keep going trying all sorts of things to try and trouble-shoot the problem so that I could give a good description here. So here are my symptoms.
Boggs down when I twist the throttle quickly, then takes off like no tomorrow.
When cruising along at about 60mph and 6000 rpms (actually it isn't just this speed, but this was what I cruised at most of the way home last night) it will do this little bit where it would: Surge-Bog-Surge-Bog.. and repeat this, the surge wasn't anything too powerful, just noticable that it would be doing it, especially when going uphill. This would happen without any adjustment to the throttle as well as under minor acceleration.
After about an hour + of driving at an average of 6000 rpms she once again died acting like I ran out of gas. So, I pulled her over to the side of the road (this is at 10:50 pm with very little shoulder on the side of the road) let her sit for a little bit,{more on this in General discussion} and re-prime the carbs (I had filled the tank about 50 miles before and I can go for 90 before having to switch to RES). After priming I started her back up and finished the ride home (about 8 miles) with the petcock in the PRI position.
Oh, one more thing, before I hit the highway I had a couple of stop signs and I'm certain that at at least one of those I had smelled gas, at least more powerful than has been usual before, which had made me think that perhaps I was runing either rich on one of the cylinders, or one wasn't firing.
The following is my thoughts on the situation, let me know if there is something else I may be missing.
At first I had thought that the night before I had gotten some bad gas, so when I filled up at the station near my girlfriends house I went up a grade in gas to help offset any bad gas I may have had in the tank.
I will probably look first pull the plugs and read them. Then I will look into replacing the fuel line and making sure I can run it without any kinks in it. After that I am thinking perhaps the vaccume line may be partially clogged and thus not allowing sufficient fuel flow from the tank when on the ON position, so I may also replace that at the same time as the fuel line. If neither of those works I'm going to see if cleaning the Petcock will help.
I'm hoping to avoid any carb work at this point in time as I am scheduling a re-build this winter to replace the transmission gears.
First some history after I got the bike last fall and started maintenance on it I noticed a fuel filter in place, this is good. However because of the filter the fuel line is kinked about an inch or two after the filter. 8O I ran the bike like this all last fall with the petcock in the PRI position. (I believe the kink saved me from gas overflowing the carbs etc) Anyway, this spring I switched the petcock over to the ON position to start utilizing it propperly. Been running all year like this with only one problem. I was running full throttle (I mean full.. :twisted: ) and the bike died like it ran out of gas. I re-primed the carbs, started back up and was back on my way. (Figured it was the Guy upstairs way of tellin me to slow it down). Been running pretty much fine ever since, even last saturday when I put 100+miles on it heading down to Gettysburg.
Now to the present. Tuesday evening I took it out for a quick spin (about 30 min) and filled up close to the end of the ride so I wouldn't have to stop on the way to work yesterday morning. Ran fine for that, and for the ride to work yesterday. However after leaving work yesterday I was heading to see my girlfriend and noticed that I seemed to have a little bit of a Bog down on accelleration. So I keep going trying all sorts of things to try and trouble-shoot the problem so that I could give a good description here. So here are my symptoms.
Boggs down when I twist the throttle quickly, then takes off like no tomorrow.
When cruising along at about 60mph and 6000 rpms (actually it isn't just this speed, but this was what I cruised at most of the way home last night) it will do this little bit where it would: Surge-Bog-Surge-Bog.. and repeat this, the surge wasn't anything too powerful, just noticable that it would be doing it, especially when going uphill. This would happen without any adjustment to the throttle as well as under minor acceleration.
After about an hour + of driving at an average of 6000 rpms she once again died acting like I ran out of gas. So, I pulled her over to the side of the road (this is at 10:50 pm with very little shoulder on the side of the road) let her sit for a little bit,{more on this in General discussion} and re-prime the carbs (I had filled the tank about 50 miles before and I can go for 90 before having to switch to RES). After priming I started her back up and finished the ride home (about 8 miles) with the petcock in the PRI position.
Oh, one more thing, before I hit the highway I had a couple of stop signs and I'm certain that at at least one of those I had smelled gas, at least more powerful than has been usual before, which had made me think that perhaps I was runing either rich on one of the cylinders, or one wasn't firing.
The following is my thoughts on the situation, let me know if there is something else I may be missing.
At first I had thought that the night before I had gotten some bad gas, so when I filled up at the station near my girlfriends house I went up a grade in gas to help offset any bad gas I may have had in the tank.
I will probably look first pull the plugs and read them. Then I will look into replacing the fuel line and making sure I can run it without any kinks in it. After that I am thinking perhaps the vaccume line may be partially clogged and thus not allowing sufficient fuel flow from the tank when on the ON position, so I may also replace that at the same time as the fuel line. If neither of those works I'm going to see if cleaning the Petcock will help.
I'm hoping to avoid any carb work at this point in time as I am scheduling a re-build this winter to replace the transmission gears.
:?
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