Jump to content

Derbi fuel issue?


scooterlad84
 Share

Recommended Posts

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) :bang: 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

Link to comment
Share on other sites

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....... :wink:

Link to comment
Share on other sites

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....... :wink:

 

Good thinking Tango, I'll give that a shot tomorrow :wink:

Link to comment
Share on other sites

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.

Link to comment
Share on other sites

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.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

  • Welcome to The Motorbike Forum.

    Sign in or register an account to join in.

×
×
  • Create New...

Important Information

Terms of Use Privacy Policy Guidelines We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.

Please Sign In or Sign Up