Carbs and Dizzy

[wizardy26]

Hi All

I have just replaced the dizzy with an electronic one and also put a new carb on.

I have set the timing as per the book and she fires up with the use of the choke. The carb I set at 2.5 turns - however she will not rev and has now started to backfire. I put a color tune on her and the colour is exactly what I would expect.

I have turned the dizzy to see if that helps but although she increases in revs and decreases she still won't rev properly.

Any advice greatly appreciated

[MarkyB]

Tells us more about the new carb, is it off/for a Morris?

Always better to change one thing at a time, then you know what to twiddle first!

[bmcecosse]

Exactly - only change ONE thing at a time...... Put the carb back on and try again. Colour tune is useless........ just set the idle for best/smoothest running - then check with the little 'lift' pin cunningly provided by SU just for the job!

[wizardy26]

Hi

Your right - I should have left the old carb on while setting up the dizzy - so will put the old carb back on today and set up the timing again and then put the new carb on and see what happens.

The re-con carb I bought of ebay but I actually haven't looked at the internals as I assumed it would all be new. Will look at that today as well