13
a
b
c
a.
Remove the cap from fuel bottle nozzle.
b.
Squeeze the fuel bottle, insert into fuel, and draw fuel into the fuel bottle.
c.
Fill car's fuel tank with glow fuel.
FUEL RECOMMENDATION
A good quality, commercially available model engine fuel containing 5% to 30% nitro with 15% to 25%
oil is recommended for initial break-in and regular run-in of this engine. Thunder Tiger also recommends
that the oil composition to be made of caster oil or a caster/synthetic blend. Fuel containing only synthetic
lubricant is much less tolerant of high temperature and lean carburetor settings; thus, may cause the
engine to become difficult to operate under normal conditions.
Less % of nitro in fuel means that the engine will produce slightly less power. Conversely, fuel with less
nitro % will have higher alcohol % which enables the engine to operate at a much lower temperature.
Thunder Tiger finds that the PRO-70BX performs best (power vs. heat) with 15% nitromethane fuel.
Oil composition in fuel is vital for a 2-cycle engine's moving internal parts. More % of lubricant means
that the fuel has more oil to lubricate the moving parts. This is especially important for ring engines such
as the PRO-70BX. Thunder Tiger finds that the PRO-70BX performs best with 20% oil.
GLOW PLUG RECOMMENDATION
The length of the glow plug and the quality of its coil have a major impact on overall performance and
reliability of the engine. The engine operates best with a platinum coil plug rated at medium to hot
temperature. The following is a list of glow plugs suitable for use in this engine: Thunder Tiger 9281,
Enya #3/#5, McCoy #9/#59, Novarossi C4S/C5S/C6S, OS A3/A5/#8, and Picco P6S/P7S.
FUELLING
7
WARNING
Thank you for purchasing a Thunder Tiger Product. Please read all instructions thoroughly before operation.
1. This product is not a toy. It is a high performance model product. It is important to familiarize yourself with the
model, its manual, and its construction before assembly or operation.
2. Do not operate model products in rain, on public roads, near crowds, near airport, or near areas with restricted
radio operation.
3. Always keep fuel away from heat and open flame. Only operate in open, well-ventilated area. Store fuel in cool,
dry area. Keep the fuel bottle cap tightly closed. Clean up any leak or excess fuel before starting the engine.
4. This product, its parts, and its construction tools can be harmful to your health. Always exercise extreme caution
when assembling and/or operating this product. Do not touch any part of model which rotates.
5. Check your radio frequency with the proper operating frequency of the area or country. Always check to see if
there are any modelers operating on the same frequency as your are. Also, check your radio for proper operation
before operating a mode.
6. Improper operations may cause personal and/or property damage. Thunder Tiger and its distributor have no
control over damage resulting from shipping, improper construction, or improper usage.
7. Thunder Tiger assumes and accepts no responsibility for personal and/or property damages resulting from the
use of improper building materials, equipment and operations. By the act of assembling or operating this product,
the user accepts all resulting liability. If the buyer is not prepared to accept this liability, then he/she should return
this kit in new, unassembled, and unused condition to the place of purchase.
Summary of Contents for EK4-S2
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