I just got a 1979 sachs I know nothing about mopeds i got it to run by puting a rope around mag it runs great.My problem is I cant get it to turn the back wheel at all you can pedal it but it doesnt turn the motor.How are you supposed to engage the pedals to turn the motor over?
You probably aren't using the starter clutch.It's usually a smaller lever on the left handlebar you pull to engage the starter clutch.BYE!
I got on it and pedaled my ass off and pulled that lever still nothing. I can get it started by using a rope but when it is running I can never get the back wheel to turn. any more sugestions would be greatly appreciated thanks
Hmm... clutch problems perhaps? Could be the clutch isn't disengaging from idle (where it doesn't drive the wheels) - complete guess mind you. Probably one of the first things to do would be to see if you can find someplace where you can order a service/user manual for your moped (might check ebay, they have several service and moped manuals for sale right now) Maybe as well there is some mechanism for disengaging the engine from driving the wheels - to make it easier to pedal. (My 87 jawa has that, its a knob you pull out and turn to disengage the pedals from the engine... so you can pedal more easily and not try to start the motor) Check for a knob or lever (mine is a circular thing near the pedal on the right side, but not knowing your moped I couldn't guess if you have this or where it would be if you did)
Hi,Roger! While you're waiting for your shop manual,which Jamie is right,you need one, why don't you pull the clutch housing cover and take a look.I've never had it happen,but I,ve heard where the tapered mounting hole may not be seated tight on the crankshaft and the clutch assembly may just be spinning on the crankshaft.OR ,you may see another problem while you're in there.Watch out! There may be an opposite turning nut on it(left-hand threads),so look at the threads before you put force on it.Keep us posted,O.K.?
Listen, Roger... don't take me as being a jerk, but I was wondering, did you make sure there's a chain for the motor as well? you know, sometimes the littlest things get overlooked. But, I'm pretty sure you would have noticed that... ;-) Sorry I couldn't be of any REAL help, but good luck man.
Okay i took the cover off and took the clutch apart everything looked good.With the clutch basket off I spun the pedals the big gear that turns the clutch basket turns fine but put any pressure on it and it slips.Could something be stripped the only way to get to that gear would be to split the motor and I dont wont to do that. Thanks for all your help
Hi,Roger! I've been away from the computer for a while,and I just now read your post.You might want to re-post your question with the latest info. you found when you took apart the clutch.Now on my mopeds,the clutches are directly mounted on the crankshaft and they drive that big gear when thge motor is revved.I own an old SACHS but it's junk and I don't know the model or year of it.Sorry I can't be more help,but if you re-post,one or more of the Gurus may answer you.BYE!
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