Please consider registering

Log In Register

Register | Lost password?
Advanced Search

— Forum Scope —

— Match —

— Forum Options —

Minimum search word length is 4 characters - maximum search word length is 84 characters

Topic RSS
D14/4 sport running problem
April 1, 2012
5:59 pm
Club member 1462 Lytham
Club Member
Forum Posts: 29
Member Since:
October 11, 2011

I have just done a complete nut and bolt restoration of D14/4 sport (1968).

I have a carburettor problem, I believe.  I have read all the other carb topics and none match and I have checked all the ideas presnted, but nothing has madea difference.

While standing on the centre stand, to start, you always have to flood the carb (hot or cold).  It will only run with the choke down and if lifted will stop. It will only run in the upper part of the rev range.   Occasonally, it suddenly revs out of control.  The plug is the correct colour

However, when off the stand and going in gear, it will work in the lower rev range, it chugs along, acceleration is poor.


I suspect a very weak mixture, but all carb joints have been checked and I have (even) bought a new carb). jets are recommeded sizes as are adjustment levels.


Any ideas or other possibilities?


D1 1953, D14/4 Sport
April 1, 2012
6:35 pm
Lone Wolf
Club Member 1657 The Black Country
Club Member
Forum Posts: 1105
Member Since:
January 24, 2012



The only thing that springs to my mind is either timing, or leaking crank seals.

April 1, 2012
9:22 pm
Club member 1462 Lytham
Club Member
Forum Posts: 29
Member Since:
October 11, 2011

Dear Lone wolf

thanks for this.  Leaking seals is what I feared.


D1 1953, D14/4 Sport
Forum Timezone: Europe/London

Most Users Ever Online: 95

Currently Online: Cornish Rooster, CharlieCeng, Piquet, bryan at poole, Dookie, dimitriscy, Kirkbybil
18 Guest(s)

Currently Browsing this Page:
1 Guest(s)

Top Posters:

Cornish Rooster: 3074

bart: 2954

david dale: 2926

Anderzander: 2910

Munchkin: 2408

Katj: 2271

Sprung Chicken: 2144

HowD1: 1566

CharlieCeng: 1512

Bournemouth Bantams: 1377

Member Stats:

Guest Posters: 397

Members: 1262

Moderators: 3

Admins: 2

Forum Stats:

Groups: 9

Forums: 34

Topics: 6961

Posts: 61512

Newest Members: David Turner, bantam nath, andrewwheatley, Neville Sproule, Vic

Moderators: Dookie: 477, Merlin: 154, xcgb: 330

Administrators: Piquet: 1415, JMD: 0

Comments are closed.