scooterlad84 Posted January 20, 2016 Posted January 20, 2016 Hey all, recently purchased a 56 plate Derbi senda 50, I think it has some sort of fuelling issue as it wont start without some fuel in the head, it will burn the fuel in the head then die, previous owner has messed with the carb (why oh why) so I'm thinking this has something to do with it. there's no fuel tap it has a vacuum thing, doesn't seem blocked as when you manually suck the bottom pipe fuel comes out the top pipe to the carb, when you kick it over no fuel comes out or does this only happen when the bike is running? why cant bikes be simple like they use to be lol my 49 year old Lambretta starts first kick and this Derbi crock of sh*t wont run for toffee, any help or advice much appreciated thanks and sorry for waffling on Quote
Tango Posted January 20, 2016 Posted January 20, 2016 Try putting a syringe onto the vacuum line and pull a vacuum to open the fuel flow and then try starting the bike......just to see if the problem is something to do with the vacuum feed for the fuel tap....... Quote
scooterlad84 Posted January 20, 2016 Author Posted January 20, 2016 Try putting a syringe onto the vacuum line and pull a vacuum to open the fuel flow and then try starting the bike......just to see if the problem is something to do with the vacuum feed for the fuel tap....... Good thinking Tango, I'll give that a shot tomorrow Quote
scooterlad84 Posted January 25, 2016 Author Posted January 25, 2016 Gave it a go but no change, what is very strange is if the bike is left over night and you kick it over it will start first kick and run for about 10 seconds then just cut out, then it won't start again! Doing my head in. Quote
eastanglianbiker Posted January 25, 2016 Posted January 25, 2016 could be the coil breaking down run it up then when it cuts out check if you have a spark or not Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.