Latest topics
» Villiers 2E
Today at 7:56 pm by ScottT

» Model 91 Sports Cruiser
Yesterday at 9:32 pm by teebee67

» Paint or Powder Coat?
Yesterday at 4:36 pm by patron

» Villiers Super Sports
Wed Jul 19, 2017 6:20 pm by piston 197

» Stanford Hall
Wed Jul 19, 2017 5:50 pm by kerabo

» How far do you go in keeping with original build quality?
Wed Jul 19, 2017 10:44 am by john87

» Part Wanted
Tue Jul 18, 2017 7:47 pm by preston21

» Fitting Japanase trail bike forks
Mon Jul 17, 2017 7:54 pm by kerabo

» Falcon 55 Vibration
Mon Jul 17, 2017 9:37 am by Jack Clegg


Carb flooding

View previous topic View next topic Go down

Carb flooding

Post  S.C_07 on Fri Apr 14, 2017 1:02 pm

Hi I have a falcon 1959 , which has a s.25 carb I believe ( correct me if I'm wrong ) and whenever I turn the fuel tap on , fuel floods out the back of the carb from the hole where the air filter sits . Its starting to cause problems as my patio is covered in petrol . I have replaced the float and the small needle that is depressed by the float. Can anyone tell me why it keeps flooding and how I should fix it ?

S.C_07

Posts : 75
Join date : 2015-01-11
Age : 16
Location : Caterham

Back to top Go down

flooding

Post  Bigjim on Fri Apr 14, 2017 1:19 pm

Maybe the needle isn't being pushed up enough.
there is a set distance for the forked piece my S24 states 3/16" between the top of the float and underside of the body. plus check for the tickler, is it stopping the float from coming up? I had the opposite problem, the tickler wasn't long enough and it was very hard to start.
nb The S24 & S25 are similar enough to be interchangeable. I believe the S24 is a brass body & the S25 the newer alloy one.
found this here on FBOC
http://fboc.niceboards.org/t1017-s25-carb 3/16 inch appears to be normal float height
avatar
Bigjim

Posts : 74
Join date : 2016-06-13

Back to top Go down

flooding

Post  piston 197 on Fri Apr 14, 2017 1:30 pm

Most likely cause is wear in the needle seat, the needle does not shut off the fuel, you have replaced the needle, but not the seat,?
Villiers services do a replacement seat, the old one has to be tapped with a thread to pull it out and a new one pressed in .
If you check this problem in the search box you will find this has been covered many times

JH
avatar
piston 197
Moderator

Posts : 3452
Join date : 2008-08-17
Location : ross-on-wye

Back to top Go down

Re: Carb flooding

Post  S.C_07 on Fri Apr 14, 2017 2:25 pm

Hi
Thank you guys very much , sound advice. The tickler is jamming occasionally so ill sort that and I'll change the needle seat too as I haven't changed that either . But wat Ive noticed from images is that I'm missing the main jet ( stupid of me not to notice that 😂) so I'm looking in villiers services on which one to buy , but for the s.25 there are variations (55 / 75 / 80 and so on to 300) what do these number variations mean and which one do I need ?
Thanks
Scott

S.C_07

Posts : 75
Join date : 2015-01-11
Age : 16
Location : Caterham

Back to top Go down

needle

Post  Bigjim on Fri Apr 14, 2017 2:37 pm

A normal 9E, 10E or 11E uses, according to the Villiers manual
120cc main jet,
needle no 3; 1.95" sticking out;(49.53mm)
Throttle No. 3;
pilot jet 35cc
ignition timing BTDC 11/64" 1/64"
points gap 0.012"/0.015" or 12 to 15 thou

image for you


Last edited by Bigjim on Fri Apr 14, 2017 2:48 pm; edited 1 time in total
avatar
Bigjim

Posts : 74
Join date : 2016-06-13

Back to top Go down

Re: Carb flooding

Post  S.C_07 on Fri Apr 14, 2017 2:43 pm

Brilliant thank you very much , ill let you know how that turns out .

By the way Ifu haven't already been go to the Coventry national motorcycle museum , went yesterday, sure most of u already have , but if u haven't there's thousands , literally thousands of classic motorcycles name a classic bike and they'll probably have it.

Thanks Scott

S.C_07

Posts : 75
Join date : 2015-01-11
Age : 16
Location : Caterham

Back to top Go down

Classic bike show stafford

Post  Bigjim on Fri Apr 14, 2017 2:45 pm

You also need to got to the classic bike show a week on Saturday, 22nd & 23rd , at the Stafford show ground
avatar
Bigjim

Posts : 74
Join date : 2016-06-13

Back to top Go down

Re: Carb flooding

Post  S.C_07 on Fri Apr 14, 2017 2:59 pm

That sounds good , ill give that a look

S.C_07

Posts : 75
Join date : 2015-01-11
Age : 16
Location : Caterham

Back to top Go down

Re: Carb flooding

Post  Sponsored content


Sponsored content


Back to top Go down

View previous topic View next topic Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum