So I am the owner of a 2001 Tomos targa lx with only 720 miles. I bought from a family friend in 2004 for $ 200 with 200 miles; thats the good part of the story. It was ridden semi-regularly up until 2008 with no issues. It was lent to my brother in 2009 in perfect working order. He only put about 10-15 miles on it over the last 3-4 years, which may have proved fatal because of the lack of use. I got it back from him early this summer because he mentioned he could only get it to idle roughly. He drained it and still couldnt get it to run well. My knowledge of mopeds is pretty sparse so I decided to contact a guy who has his own shop that has been working on moped repairs and builds for 10 years.
HE approached it rather routinely and gave me an estimate for a new throttle cable and slide, which was broken and a thorough carb clean. ps. tomos targa lx was the first moped he owned and he had worked on many so his experience was a nonissue...Once he did this, the moped will still only idle, which he mentioned meant that it was losing pressure somewhere. LOng story relatively short, he did the carb cleaner test, took apart the engine, blew threw the exhaust, and did all his usual procedures to locate an air leak. In doing this, he found there was no head gasket and installed a new one. Then he found that the crank end needed repair- re threading of nut and threads on crank shaft that he suspected happened because of a loose nut. He resealed the intake, reeds, head and cylinder after disassembly. Still only idled and wouldnt accelerate.
With this news, we decided to buy a new stator and cdi because the spark being generated was weak, which he calculated may be a culprit for the problem. He installed that last week and could still only get it to idle. Fast forward to yesterday, I go to pick it up and we could still only get to idle. At this point, he has put hours of uncompensated work, and has checked everything twice or more. I got it home yesterday and tinkered with it a bit and full throttled the thing while starting and got it to accelerate almost fully, only to see it idle when i let off. Now he is recommending buying carb cleaner and rechecking for a leak, which he was hoping to do again if he could get it to do anything more than idle. I am a little lost on what to do and would love some advice and direction. I have become emotionally attached to this tomos so parting ways was and is never an option. I am hoping I can diagnose and fix this myself with help from the community here. Thanks and let me know if you need more info. I have a video if that would help.