Well, I may of made a hasty decision when I purchased this bike. I didn't read up on the history of these hondas but it looked so clean and it had only 7.8k miles on it! It test drove nice and smooth and everything seemed ok. This is my first big bike purchase. I have just been doing vintage mopeds for the last 6 years...restoring them and getting them to go fast (fast is a relative term to mopeds, lol)
Allegedly, the bike was serviced in 2009 to "get the bike on the road again," as the service ticket stated. It mentioned carb cleaning and syncing. The mileage on the ticket was around 7100 I believe. Since then there is about 7800 miles.
First off, if the bike was shoved in a corner for so long, could it be possible the carbs would be gummed up pretty bad after that short little stint of sitting?
I just changed the oil, and put new plugs in the bike.
Here are the symptoms. After getting the bike nice and warmed up after a long ride, the idle would sit around 1k and slowly want to go down. Then the oil light will flicker as the rpms get really low and the bike will stall out. First, I didn't have the vacuum hose hooked up to the petcock, it was sealed off. It seamed fine with a full tank of gas, but the problem seamed to be when I burned off about one gallon, the bike would be happy if I switched to reserve. I did disassemble the petcock and everything seemed to be of working order.
Then I tried hooking the vacuum hose back up and the problem was still there. Which I still can't find a straight answer about this vacuum hose as a low pressure pump...but when I had the vacuum hole unplugged the bike was shooting air out of the cylinder which leads me to believe this helps push gas down the fuel line to the carbs.
That stated, I recently found the main idle screw. When the bike was relative cold but running, the idle screw would dial in the rpms where I want them, but after a long ride, no matter where I turned the idle up to, it would go to 1k rpm and slowly die off.
The newest problem I've found is, I rode on the highway yesterday, and in 4th gear, all of a sudden I was losing power...I down shifted to 3rd and it was hesitating and still losing power...and it finally sputtered and gained some power back (gas was on reserve with at least 4 gallons and the vacuum hose hooked up). This was a pretty scary ordeal, being on the Kennedy at 8pm in chicago while most cars are going 85mphs. I was all the way to the left lane and I had try to make it safely to the right lane...
I know this could be a slew of problems, but I'm trying to figure out if it could be the fuel pressure going to the carbs, the carbs not synced and clean, or something electrical. The only simple thing I have not tried was to change out the fuel filter after the petock, I read some people had trouble with paper elements not feeding fuel to the carbs and cleaning out the air (which was checked off the service in 2009).
Allegedly, the bike was serviced in 2009 to "get the bike on the road again," as the service ticket stated. It mentioned carb cleaning and syncing. The mileage on the ticket was around 7100 I believe. Since then there is about 7800 miles.
First off, if the bike was shoved in a corner for so long, could it be possible the carbs would be gummed up pretty bad after that short little stint of sitting?
I just changed the oil, and put new plugs in the bike.
Here are the symptoms. After getting the bike nice and warmed up after a long ride, the idle would sit around 1k and slowly want to go down. Then the oil light will flicker as the rpms get really low and the bike will stall out. First, I didn't have the vacuum hose hooked up to the petcock, it was sealed off. It seamed fine with a full tank of gas, but the problem seamed to be when I burned off about one gallon, the bike would be happy if I switched to reserve. I did disassemble the petcock and everything seemed to be of working order.
Then I tried hooking the vacuum hose back up and the problem was still there. Which I still can't find a straight answer about this vacuum hose as a low pressure pump...but when I had the vacuum hole unplugged the bike was shooting air out of the cylinder which leads me to believe this helps push gas down the fuel line to the carbs.
That stated, I recently found the main idle screw. When the bike was relative cold but running, the idle screw would dial in the rpms where I want them, but after a long ride, no matter where I turned the idle up to, it would go to 1k rpm and slowly die off.
The newest problem I've found is, I rode on the highway yesterday, and in 4th gear, all of a sudden I was losing power...I down shifted to 3rd and it was hesitating and still losing power...and it finally sputtered and gained some power back (gas was on reserve with at least 4 gallons and the vacuum hose hooked up). This was a pretty scary ordeal, being on the Kennedy at 8pm in chicago while most cars are going 85mphs. I was all the way to the left lane and I had try to make it safely to the right lane...
I know this could be a slew of problems, but I'm trying to figure out if it could be the fuel pressure going to the carbs, the carbs not synced and clean, or something electrical. The only simple thing I have not tried was to change out the fuel filter after the petock, I read some people had trouble with paper elements not feeding fuel to the carbs and cleaning out the air (which was checked off the service in 2009).