Derbi ATV DXR 200, Руководство по ремонту

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7-1. E
NGINE DOES NOT START OR HARD TO START
7-1-1. Check if fuel reaches carburettor by loosening drain screw
A. Fuel does not reach carburettor
1). No fuel in tank
2). Clogged fuel line between fuel tank and carburettor
3). Clogged float chamber passage
4). Clogged fuel filter
5). Clogged charcoal canister
6) . Clogged fuel valve strainer
7). Clogged fuel valve passage
8). Clogged carburettor air balance tube
9). Deteriorated fuel or fuel containing water of foreign material
B. Fuel does reach carburettor --- refer 7-1-2.
7-1-2. Remove the spark plug and install it into spark plug cap to test spark by connecting it to
the engine ground
A. Weak or no spark
1). Faulty spark plug
2). Fouled -spark plug
3). Faulty GDI unit
4). Faulty pulse coil
5). Faulty exciter coil
6). Faulty ignition switch
7). Broken or shorted ignition coil
B. Good spark --- refer to 7-1-3.
7-1-3. Test cylinder compression
A. Low or no compression
1). Faulty or slipping clutch
2). Valve clearance too small
3). Leaking valve
4). Worn cylinder and piston rings
5). Leaking cylinder head gasket
B. Normal compression --- refer to 7-1-4.