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BRISK
SPARK PLUGS
Simply Reliable
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We have been using
Brisk spark plugs for over a decade as they are original equipment
fitted to some of our motorcycles.
In the past, when they eventually needed changing we swapped
them for easily available alternatives from well know manufacturers.
Strangely the replacement plugs did not last as long and did
not run as well.
We contacted Brisk and are now please to offer a range of plugs
to suit many traditional motorcycles.
We urge you to try them and find out just how good they are.
Made in Europe, Established
1935
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N-Series.
M14 x 1.25 short reach.
Y indicates a projected insulator
R indicates internal resistor |
Brisk
Spark Plug |
NGK
cross reference |
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N15C |
B6HS |
NR15C |
BR6HS |
NR15YC |
BPR6HS |
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N14C |
B7HS
+ B8HS |
NR14C |
BR7HS
+ BR8HS |
NR14YC |
BPR7HS
+ BPR8HS |
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L-Series.
M14 x 1.25 long reach.
Y indicates a projected insulator
R indicates internal resistor |
Brisk
Spark Plug |
NGK
cross reference |
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LR17YC |
BPR5ES |
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L15C |
B6ES |
LR15C |
BR6ES |
L15YC |
BP6ES |
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L14C |
B7ES
+ B8ES |
LR14C |
BR7ES
+ BR8ES |
L14YC |
BP7ES
+ BP8ES |
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LR12C |
BR9ES |
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Heat
Range.
Brisk spark plugs have a very wide heat range,
there is no 13 or 16 so they cover most motorcycle needs
with just 4 different heat ranges.
This wide heat range is very useful for older type engines
running carburetors.
Brisk plugs recover well from over rich mixture due to excessive
choke of flooding on start up.
They continue to function well even on a feathered throttle
at speed when a carburettor may be a little lean.
They will not cure incorrect carb set up, but they tolerate
small variations in mixture very well indeed.
We find this wide heat range also helps them stay cleaner
when fitted to classic 2-strokes. |
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Reliable
Spark Plugs at an Affordable Price |
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Price |
P&P |
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| Any N
or L series plug |
£2.10 |
£1.20 |
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| Any
2 N or L series plugs |
£4.20 |
£1.80 |
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| Any
3 N or L series plugs |
£6.00 |
£2.40 |
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| Any
4 N or L series plugs |
£7.80 |
£2.40 |
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| Any
10 N or L series plugs |
£18.00 |
£6.00 |
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All
prices include VAT
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Fitment
Guide for just a few motorcycles.
This is a guide only, please double check original specifications
in your owners manual or cross reference against the NGK recommendation.
NOTE - If you require
resistor plugs simply insert the letter R after the L or N |
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Make
and Model |
Brisk
Plug |
| AJS
OHV most OHV models taking 14 mm short reach plugs |
N15C |
| Ariel
Leader/Arrow |
L14C |
| BMW
R80 R80RS R80RT etc |
L15YC |
| BMW
R100 R100GS R100RT etc |
L14YC |
| BSA
Bantam D1 - D7 short reach |
N15C |
| BSA
Bantam D10 - D14 long reach |
L15C |
| BSA
A10 A50 A65 non competition |
L14C |
| Harley Davidson
1340 Carburetor bikes |
LR17YC |
| Jawa - CZ
most models to 2010 |
N14C |
| Jawa 350
twins from 2010 (electric start models) |
NR15C |
| Matchless
most 1950 to 1964 alloy head non competition |
L15C |
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Make
and Model |
Brisk
Plug |
| Moto Guzzii
V50 small block twins |
L14C |
| Moto Guzzii
T3-G5 Big twins with carburetors |
L15YC |
| MZ
250 points models |
N14C |
| MZ
250 electronic ignition |
NR14C |
| Royal
Enfield (India) 350 |
N14C |
| Royal
Enfield (India) 500 points |
L14C |
| Royal
Enfield (India) 500 fitted with electronic ignition |
LR14C |
| Royal
Enfield (India) Electra X 500 |
LR12C |
| Triumph
T120 650cc |
L14C |
| Triumph
T140 750cc |
L15C |
| Ural 650
OHV |
NR15YC |
| Ural 750
OHC carburetor |
NR14YC |
| Ural 750
OHC EFI |
NR15YC |
| Vespa
125E |
NR14C |
| Villiers
engines using 14mm short reach non competition |
N15C |
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Internal
Resister.
Resistors are fitted to spark plugs to reduce electrical
noise, they act as a suppressor.
However many spark plug caps already have suppressors fitted,
so you may not need both.
Our advice is as follows.
Bikes running magneto ignition should not have suppressor
plugs or caps fitted, unless you are constantly annoying
the neighbours, in which case maybe consider using a suppressor
plug or cap.
Bikes running coil ignition either with points or electronic
ignition should use either a suppressor plug or cap. A good
coil will produce so much energy that the strength of the
spark at the plug will be almost unchanged by the suppressor.
You will not be able to tell the difference.
Bikes fitted with high power ignition systems and sensitive
modern electronic dash boards may need both suppressor plugs
and caps together.
You should always refer to the original manufacturers recommendations
where possible, but note that over time things get changed.
For example a manufacturer may specify suppressor plugs
because the original motorcycle did not have suppressor
caps, but these may have been changed to suppressor caps
by a previous owner. Brisk use the letter R after the first
letter to indicate it is a suppressed (resistor) plug. |
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