I have a Sachs 505/1D engine that has given me problems all weekend long with no fix in sight.
First, what does it do?
It will accelerate only if I give it 3/4 throttle. Anything more and it bogs down and dies. After I reach 20 mph or so, the moped will act somewhat normally and I can then give it full throttle. Also, if I fiddle with the choke, it works alright but nothing consistent.
How did this happen?
No idea. It happened over night, while I was not riding it. The night before, though, I did run out of gas and I did clog my jet. I filled up and clean my jet and everything was fine. After riding it, I parked over night and rode it in the morning. At first, it was just driving strangely. Slowing down suddenly, loss of power uphills and while changing gears, and general slowness.
What have I done.
I have replaced my carburetor with a different bing model. I have changed my stator plate. I have set my timing to many different settings. I have replaced every gasket from the airbox to the cylinder. I have changed my airfilter. I have jetted and rejetted.
Yes and No. I jetted up last night and that kinda worked. I was going slower than before this whole mess started, but I wasn't stalling if I gave it full throttle. Today, though, the moped just bogged down completely. I can reach full speed if I keep the choke halfway in but that is not consistent.
One thing to note:
I did just rebuild my engine but this isn't a clutch issue, I think. It is gas because if I choke the bike, it runs alright.
So, any ideas? I'm in a bad place right now because the moped is my only transportation and this one is not working to the point where it's safe in traffic.
Any help would be greatly appreciated.