Introduction, Operating specifi cations, Timing-advance test procedure – GxT V084-01, Ferret 84 Digital Timing Light User Manual
Page 2: Electrical interference, Technical support, Maintenance & service, Replacement parts

Introduction
The Ferret 84 is a Digital Tach-Advance Timing Light. Both RPM and advance
can be read by simply pressing the mode button.
Operating Specifi cations
Scale
Range
Resolution/Accuracy
Advance (400-5,000 RPM)
to 90 degrees
0.5 degree ± 1 degree
Tachometer
400 to 9,990 rpm
10 rpm ± 1 %
Power Req.
10 to 16 Volts DC, 1.5 Amp
12 volt battery
Operating Temperature
0° to 122° F
-18° to 50° C
Storage Temperature
-40° to 180° F
-40° to 80° C
Weights & Dimensions
Leads
5 feet
1.5 meter
Weight
1.7 pounds
770 gram
Size
12 inches tip to tip, 2.8 wide
30 x 7 cm
Timing-Advance Test Procedure
This light measures advance by delaying the fl ash so that it appears to align the
crank shaft TDC mark to its pointer, and then displaying the degrees delayed.
Note that on engines with ignition contact points, dwell affects timing and must
be in calibration before timing is adjusted.
1. Connect the power leads: RED - positive, BLACK - negative. Hold the Mode
button for 2 seconds to select 2 or 4 stroke operation. Place the Inductive
Pick up around the #1 spark plug wire.
2. Prepare the engine for timing tests, such as: warming-up, disabling electric
and vacuum control lines, and cleaning the wheel timing marks. Then run
the engine. The light should begin fl ashing.
3. Press the Mode Button to toggle between RPM and Advance.
4. Point the light beam onto the degree marks at the engine damper wheel or
fl ywheel, and move the mark to the TDC position using the Tim ing Advance
Control Buttons, and read the timing advance on the display. NOTE: Align
your eye squarely with the timing marks when to avoid parallax error.
5. Compare the measurement with the specifi cation. Adjustments are made
by turning the distributor slightly or by moving the ignition timing sen sor.
6. Restore all engine parts to their normal arrangement.
Electrical Interference
In the event that the unit is subjected to extreme electromagnetic conditions
the display may appear to lock up. Simply disconnect the power lead and
reconnect to reset the unit.
Technical Support
Questions or inquiries about service can be answered by contacting GxT, Inc.,
at: Toll Free (800) 627-5655. Fax: (231) 627-2727, Toll Free (231) 782-0616,
or [email protected]. When sending an item to the factory address it to:
GxT, Inc., 520 MM Riggs Drive., Cheboygan, MI 49721-1061
Maintenance & Service
When cleaning the timing light, use a cloth dampened with waterless hand
cleaner. DO NOT use solvents such as acetone and benzene which can be
absorbed by and damage plastics. Promptly remove penetrating oils, gas o line,
and battery acid. The Inductive Spark Pickup is a plug-in replaceable lead. It
can be repaired or replaced if damaged. Leave the Pickup latch Open when
not in use. The magnetic cores are made of ferrite ceramic and, when kept
apart, they are less likely to break if the pickup is dropped.
Replacement Parts
X008-01
Inductive Spark Pickup
X006-81
Storage Case
E084-01
Instruction Manual
FERRET BRAND LIMITED PRODUCT WARRANTY
GxT, Inc. of Cheboygan Michigan, warrants to the original purchaser that FER-
RET brand products are free from defects in materials and workmanship for a
period of two years from date of purchase. Our sole obligation for a product within
the above warranties will be to repair or replace, at our option, any defective
parts and return the product to the sender within the U.S.A., shipping prepaid,
if it is sent to our Repair Department shipping prepaid and accompanied by
proof of purchase.
This Warranty does not apply to products which have been altered outside the
factory; or repaired by anyone other than the factory or its authorized service
centers; or which have been damaged from accidents, negligence, or abuse;
or have been used differently than described in the printed instructions. Please
note that wear and tear on leads and replacement of consumable items such
as: NOx Sensors, Oxygen Sensors, and paper, is not covered by warranty.
GxT Inc.ʼs sole liability and buyerʼs exclusive remedy is limited to repair or re-
placement of the product as stated in the Limited Product Warranty. THERE ARE
NO OTHER WARRANTIES EXPRESSED OR IMPLIED INCLUDING THOSE
OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE AND
GxT, INC. SHALL NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL
DAMAGES ARISING FROM THE SALE OR USE OF THE PRODUCT.
Some states do not allow limitations on the length of implied warranties nor
exclusion or limitations of incidental or consequential damages, so that the
above limitations and/or exclusion may not apply to you.
This warranty gives you specifi c legal rights and you may also have other rights
which may vary from state to state.