Beta Enduro RR 350 2015 Workshop Manual page 6

Bore x stroke RR 350
Bore x stroke RR 400
Bore x stroke RR 450
Bore x stroke RR 498
Displacement [cm³] RR 350
Displacement [cm³] RR 400
Displacement [cm³] RR 450
Displacement [cm³] RR 498
Compression ratio RR 400-450-498
Primary transmission
1st gear ratio
2nd gear ratio
3rd gear ratio
4th gear ratio
5th gear ratio
6th gear ratio
SECoNDARY tRANSMISSIoN
Carburettor type
Needle position from top
Air mixture screw position (from all closed)
4
tECHNICAL fEAtURES of ENGINE
type
Valve gear
RR 350
28/76
12/31
15/28
19/28
20/24
27/27
28/24
Main jet
Jet needle
Main air jet
Jet needle
Intake jet
Single cylinder, 4-stroke, liquid-cooled with countershaft
and electric starting
13,19:1
tRANSMISSIoN
RR390
28/76
12/31
15/28
19/28
20/24
27/27
28/24
CARBUREttoR
RR390
Keihin FCR-MX 39 Keihin FCR-MX 39
170
40
100
NCVS
4°
1+1/2
40
www.betamotor.com
88x57,4
88x63,4
95x60,8
100x60,8
349,1
386
431
478
12,5:1 11,9:1
4 valves
RR430 RR480
31/73 31/73
12/31 12/31
15/28 15/28
19/28 19/28
20/24 20/24
27/27 27/27
28/24 28/24
CHAIN
RR430 RR480
Keihin FCR-MX 39
175 180
45 45
100 100
NCVS OBDVS
3° 3°
1+1/2 1+1/2
40 40
11,9:1