- ページ 11

エンジン Great Power Engine GP123 V2のPDF 取扱説明書をオンラインで閲覧またはダウンロードできます。Great Power Engine GP123 V2 14 ページ。

the needle settings suit requirements of the pipe and header you use.

(e) Incorrect ignition timing and failing spark plugs, which will result in twisted crankshafts and

therefore lower RPM.

10. If the engine runs roughly or vibrates strongly:

(a) Check if the low needle is too rich

(b) Check balance of the propeller and spinner

(d) Check if the ignition timing is correct.

(e) Check structure of the engine box and firewall on the plane.

IGNITION WIRE DIAGRAM

 Voltage Input: 6.6V~8.4V

 WARNING: DO NOT USE TACHOMETER PORT FOR POWER IN

MAINTENANCE

As a high-performance two-stroke engine, certain parts of GP178 may wear out more quickly than the

other models. Pistons, piston rings, needle bearings, spark plugs and so on may need to be occasionally

replaced out of warranty to maintain peak performance. Check screws of the engine, firewall, and

propeller to make sure they are in good condition and well tightened to the required torque value on a

regular basis. The following chart lists the sizes of screws and their torque values.

Parts

Spark Plug

Hub Screw

Crankcase Bolts

Engine

Screws

All Engines

Customized

GP38

M5x18

GP61

M5×20

GP76

M5×20

GP88

M5×18

N/A

Torque Value

100 in-lbs

250~280 in-lbs

90~100 in-lbs