KCS 62CC MANUAL
5
Fuel and Oil Mix
• Use Premium pump gas, such as 91 to 93 octane.
• We recommend purchasing your fuel from “name brand” gas stations. We have seen
problems with cheaper gas from some discount type outlets.
• We recommend filtering your fuel between your fuel container and your plane’s fuel tank.
• Make sure the plane’s tank is well vented and the fuel clunk moves freely.
•
Use of any other fuel or additives such as nitro formulas, aviation gas, white gas, etc.,
can harm the motor and void the warranty.
• Do not use silicone sealers on the fuel system. Gas can break it down and carry it into the
carb.
• We recommend a high quality synthetic oil. Some oils, and their mix ratios, that KCS
ENGINE recommends are: During break-in stage use 30 to 1. After the break-in stage use 35
to 1.
Break-In Phase
• The engine should run well from the beginning and improve as flight hours accumulate. We
do not recommend breaking the engine in on a test stand. The stationary load and lack of air
ducting can lead to engine over-heating. Proceed with flying once the engine is tuned and
running correctly. Engine break-in can be a slow process, taking place over many hours of
flight time. Peak RPM will improve along with idle characteristics as run time accumulates.
• Special "break in only" props are not required;
however we recommend that the cowl
must be removed during on-the-ground break-in phase for better cooling of the
engine
.
The recommended speed for a Break-in phase should be:
•
1800rpm for 30min. (Idling Speed)
•
4000rpm for 5min.
•
1800rpm for 1min.
•
End of Break-in phase on the ground
.
Once the upper step has been completed, then it is possible to adjust the acceleration up to
the owners liking.
Remark: Max. RPM should not exceed more than 10 seconds.