A7 Starting

[Jonah]

1960 A7 Steel Head single carb

I had a magneto refurbed bike ran and started perfectly, 2 years in magneto had a failure fixed under warranty and produces spark .

Done all usual checks plugs leads etc
I
m sure timing is correct but bike wont start and only backfires , Im worn out kicking

[Rex]

The old "swap the plug leads over" tip?

[Jonah]

Hi thanks , Ive done that but thank you

[berger]

did you time it at full advance ? manual mag or auto advance?

[Jonah]

Bike now starts but only on LH cylinder RH misfire , its magneto with no manual advance retard

[Bsareg]

You still have to advance the automatic mechanism before setting the timing.

[BigJim]

Is it possible that the magneto slip ring has moved or is a bit loose. Mine did and had your symptoms.

[Triton Thrasher]

Is it possible that the magneto slip ring has moved or is a bit loose. Mine did and had your symptoms.

Do you mean the cam ring?

[BigJim]

Is it possible that the magneto slip ring has moved or is a bit loose. Mine did and had your symptoms.

Do you mean the cam ring?

yes I do

[orabanda]

Have you changed the plugs?

[sean]

you dont mention the plugs your running I had a few problems similar with NGK swapper to Champion C4 problems went away , check compression , points gap, ......take bike in a dark shed spray bottle of water and spray the HT leads and mag cap see if your sparks going to ground

[sean]

you dont mention the plugs your running I had a few problems similar with NGK swapped to Champion C4 problems went away , check compression , points gap, ......take bike in a dark shed spray bottle of water and spray the HT leads and mag cap see if your sparks going to ground