Author Topic: reluctant starter  (Read 495 times)

0 Members and 1 Guest are viewing this topic.

royblackburn1@btinternet.

  • Star
  • *
  • Posts: 20
    • View Profile
reluctant starter
« on: 13 November, 2017, 17:41:21 »
Hi can anyone help before my right foot is damaged beyond repair my A65L is a poor starter when it was running the timing was set up using a strobe but refuses to start at times I have 12.6 volts at the battery when trying to start it is this enough volts to get the Boyer Bransden ignition working my concentric carbs do not have pilot jets in even when they where bought new would pilot jets help when easy start is squirted in it fires up. thanks Roy

A10 JWO

  • Royal Star
  • ***
  • Posts: 150
    • View Profile
Re: reluctant starter
« Reply #1 on: 13 November, 2017, 18:00:16 »
Whats the spark like with the plugs out. I had a Boyer with a crack in the stator which made it intermittent.

JulianS

  • Empire Star
  • *****
  • Posts: 630
  • A10
    • View Profile
Re: reluctant starter
« Reply #2 on: 13 November, 2017, 18:37:56 »
Your carbs probably have a bush pilot jet, remove the air screw and look in you will see a brass insert which is the pilot bush.

royblackburn1@btinternet.

  • Star
  • *
  • Posts: 20
    • View Profile
Re: reluctant starter
« Reply #3 on: 15 November, 2017, 10:07:44 »
thanks guys have checked your suggestions out I think it must be a fuel/air mixture problem, but it fires up with a squirt of easy start,(but what wouldn't)

JulianS

  • Empire Star
  • *****
  • Posts: 630
  • A10
    • View Profile
Re: reluctant starter
« Reply #4 on: 15 November, 2017, 10:17:10 »
These notes from Amal may help if you have not already seen them;

http://amalcarb.co.uk/rebuilding-mark-1-concentric-carburetter

royblackburn1@btinternet.

  • Star
  • *
  • Posts: 20
    • View Profile
Re: reluctant starter
« Reply #5 on: 15 November, 2017, 17:21:01 »
thanks JulianS for the information real interesting reading my old workshop manual shows the pilot jet that was used before 67

royblackburn1@btinternet.

  • Star
  • *
  • Posts: 20
    • View Profile
Re: reluctant starter
« Reply #6 on: 16 November, 2017, 10:13:35 »
Hi what voltage is required to run the Boyer/Bransden   ignition I get 12.6 is with engine stood is that ok

JulianS

  • Empire Star
  • *****
  • Posts: 630
  • A10
    • View Profile
Re: reluctant starter
« Reply #7 on: 16 November, 2017, 11:01:36 »
Have you tried the Boyer helpline?

http://www.boyerbransden.com/faultfinding.html

DEREKANDERSON8

  • Royal Star
  • ***
  • Posts: 112
    • View Profile
Re: reluctant starter
« Reply #8 on: 16 November, 2017, 13:53:29 »
12.6 should be plenty, mine will run on less than that.

Are plugs wet? Mine needs plenty of fuel to start but is single carb.


royblackburn1@btinternet.

  • Star
  • *
  • Posts: 20
    • View Profile
Re: reluctant starter
« Reply #9 on: 16 November, 2017, 17:04:52 »
Thank you all lots of information to go at. Roy