Weber CFR 90 Operating And Maintenance Manual page 13

Check the engine oil level
Unscrew and pull the oil dipstick (1) out of the crankcase.
Insert the oil dip stick in the oil filler neck, but do not
screw it in.
The correct oil level is between the min. and max. marks.
When reaching the min. mark engine operation must be
stopped immediately, and the oil level must be topped
off to the max. mark.
Risk of engine damage if the oil level drops below the
minimum oil level in unfavorable operating conditions.
Check the fuel level
Open and remove the gas cap (2), check the level, if necessary
top off to the lower edge of the filler neck with clean fuel in
accordance with the specification.
For work at the fuel system, have a suitable fire-extin-
guishing agent at the ready.
Fire, naked light, and smoking is forbidden!
CFR 90
1
UPPER LEVEL
max.
min.
LOWER LEVEL
2
13