SHERCO 300 SE-R Repair Manual

4
TECHNICAL SPECIFICATION
ENGINE
CARBURETOR
250 300
Carburetor type
KEIHIN PWK 36S AG KEIHIN PWK 36S AG
Needle position 3rd position from the top
3rd position from the top
Jet needle
N1EG (N84K) N8RE (N84K)
Main jet KEA 162 (KEA 115) KEA 172 (KEA 115)
Idle jet KEP 40 (KEA38) KEP 42 (KEA 38)
Choke jet 85 (50) 85 (50)
Air regulating screw
opening
1T 1/4 1T 1/2
Valve spacing N°7 N°7
250 300
Type
Single cylinder 2 stroke liquid cooling
Capacity 249.32 CC
293.14 CC
Bore/Stroke 66.4/72 mm
72/72 mm
Petrol
Unleaded with an octane rating of at least 98 mixed with 2-
stroke oil (2 %)
Cooling
Liquid with forced circulation
Ignition system
Synerject electronic ignition
Spark plug
NGK BR7ES/DENSO W22ESRU
Distance between spark
plug electrodes
0.7 mm
Piston Cast aluminum
Engine oil 750 ml SAE 10W40
Primary transmission 27 : 75
Gearbox : 6 speeds
1st 14 : 32
2nd 15 : 26
3rd 29 : 27
4th 21 : 24
5th 23 : 22
6th 25 : 21
Final transmission 14 X 49
Clutch Oil bathed multi disks, hydraulic control
Starter Electric starter
Battery 12V 4Ah
Alternator 220W

SHERCO 300 SE-R Specifications

General

Transmission	6-speed
Dry Weight	105 kg
Seat Height	950 mm
Displacement	293.1 cc
Bore x Stroke	72 mm x 72 mm
Clutch	Wet multi-disc
Frame	Chrome-molybdenum steel semi-perimeter
Front Brake	Single disc
Rear Brake	220 mm disc