Page 12 Technical Information 08.2005
TI_08_2005_11_01_02.fm
5.1.3 Basic setting without limiter cap
. Starting from the tight position of the adjusting
screws:
Open H = 2 turns
Open L = 3 1/2 turns
Set the specified speeds within the tolerance range
of +/– 200 rpm.
1. Set speed to 3,300 rpm with idle speed
adjusting screw (LA).
2. Turn the low-speed adjusting screw (L)
clockwise or anticlockwise to set the highest
speed.
If this speed is greater than 3,700 rpm, stop and
start again with step 1.
3. Set the speed to 3,300 rpm again with idle
speed adjusting screw (LA).
4. Set the speed to 2,500 rpm with low-speed
adjusting screw (L).
5. Set the maximum speed with the high-speed
adjusting screw (H):
BR 500: 5,500 rpm
BR 550: 6,100 rpm
BR 600: 7,200 rpm
If you make the setting too lean it will increase the
risk of engine damage through lack of lubrication
and overheating.
6. Continue with "securing the limiter caps".
5.1.4 Securing the limiter caps
Used caps may not be reused, as they are damaged
when pulled off.
. Align the new limiter caps for the adjusting
screws on the stop knob (arrow) and press on
to the 2nd clearly locked position.
Do not press on the limiter caps until they contact
the carburetor housing since they would become
damaged:
Minimum distance a=1mm
H
L
249TI007 KN
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