Downloads
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We have a number of useful files, all for free, to
help you with magneto related tasks. Some of them contain the sort of stuff that's
invaluable when you are working on your magneto on a Saturday afternoon, and
you need to have the bike running for a Sunday run. So, even if you don't need
anything right now, bookmark this page.
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Gaskets
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Gasket pattern for mounting flange of Lucas K1F,
K2F, KVF magneto |
Print on paper, card, or gasket material. Cut around outline and
cut out holes.
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Download |
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Shims
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Pattern for shim between ring cam housing
and main housing of Lucas K1F, K2F, KVF magneto |
Print on strong paper or card, preferably reinforced or plasticised, such as Tyvek® envelope
material. Cut around outline and cut out holes.
These are delicate. You will need to take care. |
Download |
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Pattern for shim between ring cam housing
and main housing of Lucas K2FC magneto |
-- ditto -- |
Download |
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Bearing Insulators
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Insulator patterns for E15, E18 and N3048 bearings,
all on one sheet |
Print on strong paper or card, preferably reinforced or
plasticised, such as Tyvek® envelope
material. Cut around outline and cut out hole. |
Download |
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Tools
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Drawings of pullers for inner race of bearing at CB end and for slip
ring - Lucas K1F, K2F & KVF |
You will need a lathe, some pieces of aluminium plate, some M4
screws or studding, nuts and washers and an M6 or M8 tap and screw. |
Download |
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Timing discs
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 Each of our timing disc files contains clockwise and anti-clockwise
versions of the timing disc. If your printer can do it, you can print
the timing discs straight onto card, cut around the outline and cut out
the hole. Alternatively you can print on paper, and then stick the paper
to a sheet of card or laminate it.
All timing discs are 180mm diameter with one degree graduations,
clearly marked every 10 degrees with the angle and, usefully, whether it
is before or after TDC or BDC. The timing discs are for use on the
crankshaft, not on any half-time shafts. Other than the 'generic' disc,
all discs are marked with the valve opening and closing angles and
ignition angles as
stated.
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Make |
Cam |
Motorcycles |
Valve angles marked on disc |
Checking clearances |
Ignition angles marked on disc |
Notes |
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Adv'd |
Ret'd |
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Generic |
n/a |
All |
- |
- |
- |
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Includes compression ratio and cylinder packing graphs |
Download |
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Velocette |
M17/5 |
Later sprung MAC |
30°-60°-60°-30° |
0.030" |
38° |
14° |
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Download |
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M17/7 |
Sprung MSS; Viper to engine no. 1261 |
19°-49°-49°-19° |
0.030" |
36° |
12° |
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Download |
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M17/6 &
M17/8 |
Viper from engine no. 1262; Venom; Thruxton |
55°-65°-75°-45° |
0.030" |
38° |
14° |
Method 1 for M17/8 |
Download |
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45°-55°-65°-35° |
0.053" in.; 0.052" ex. |
38° |
14° |
Method 2 for M17/8 |
Download |
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Brightspark Magnetos