Sachs 125 roadster help
 

Hi guys it me again. i have a prob with my bike their is no power in the bike and when i rev it, it seems to rev so high it takes about 8 seconds for it to come back down and even then its revs are very low and to get the bike going i have to use the thorttle over and over again to get the revs up.

So any help would be great:D

Re: Sachs 125 roadster help
 

forgot to mention it uses a yamaha Virago 125 engine, so i cannot blame hitler for the engine :D

Re: Sachs 125 roadster help
 

This is one possible reason

I had this last week with my 125, so it may be the pilot circuit is set wrong. Try playing with it the pilot screw back and forth, if its not returning to idle speed after you rev it, you need to unscrew the pilot screw bit by bit.


I still haven't got it perfectly set, same symtoms as you. Mine was wrong because after cleaning the carb i set it to the default setting as per manual instruction, however, my compression is lower than standard, so the pilot screw needed to be tweaked.

Not sure why yours would suddenly need changing though.


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Re: Sachs 125 roadster help
 

Thank you for the reply, i have had a mess about with it today and i pulled the choke out more then it should do and the bikes runs fine it when i leave the choke on normal off persition it does the rev thing so i have to turn it past off to, mega off :p


God knows why this is happing ? Never buy a sachs that isnt made anymore :D 15HP for the win

Re: Sachs 125 roadster help
 

sounds like the pilot still lol.

So are you riding with the choke on now? or "more off"

Re: Sachs 125 roadster help
 

More OFF :D And i blame hitler for this and the pilot :D

Re: Sachs 125 roadster help
 

revs hanging up is a symptom of lean running, but it sounds more to me like your choke is sticking.

Re: Sachs 125 roadster help
 

So how can i fix this sorry for a idiot questions :D

Re: Sachs 125 roadster help
 

Yes i agree sounds less like the pilot now, do you have a the manual?

Re: Sachs 125 roadster help
 

god i wish i did, and it is not on the internet, but i did find out that my air filter had ripped

Re: Sachs 125 roadster help
 

less resistance that could be why, have you replaced it.

Re: Sachs 125 roadster help
 

Well no, as it cannot be replaced the air filter is a strange long circle thing, and i went down to 1 dealer of sachs scooters and one auto motive place, they both said scrap the bike :( so in the end i glued it!

Well good news the bike is now working to a certain standard, ow and there was a huge whole in the pipe linking the two cylinders, so sealed that :D, god so many problems

Re: Sachs 125 roadster help
 

A hole in the balance pipe would explain it.

Re: Sachs 125 roadster help
 

yep fixed thanks for all the help guys