Troubleshooting Chart - Ryobi 1090r Operator's Manual

PROBLEM
Engine will not start
Engine will not idle
Engine will not accelerate
Engine lacks power or
stalls when cutting
Engine rope is difficult to
pull or engine locks
Cutting head will not
advance line
If further assistance is required, contact your authorized service dealer.
TROUBLESHOOTING
CAUSE
On/Off Stop Control is in the
STOP position
Empty fuel tank
Primer bulb wasn't pressed
enough
Engine flooded
Old Fuel
Fouled spark plug
Air Filter is Plugged
Old Fuel
Old Fuel
Carburetor misadjusted
Cutting head bound with grass
Dirty air filter
Old Fuel
Cutting head bound with grass
Muffler or spark arrestor
plugged
Unit operated with low or no
oil. Oil accumulated in
combustion chamber
Cutting head out of line
Inner reel bound up
Cutting head dirty
Line welded
Line twisted when refilled
Not enough line is exposed
ACTION
Turn On/Off Stop Control to the
START position
Fill fuel tank
Press primer bulb fully and slowly
5-7 times
Use starting procedure WITHOUT
choke lever in the START position
Drain fuel tank / Add fresh fuel
Replace or clean spark plug
Replace or clean air filter
Drain fuel tank / Add fresh fuel
Drain fuel tank / Add fresh fuel
Adjust carburetor
Stop engine and clean cutting
head
Clean or replace air filter
Drain fuel tank / Add fresh fuel
Stop engine and clean cutting
head
Clean or replace muffler / spark
arrestor (contact authorized
service dealer)
Check oil level before starting
1. Remove spark plug
2. Drain any oil from the spark
plug hole.
3. Pull the starter rope several
times to remove any excess oil
from the cylinder
4. Clean, inspect and reinstall
spark plug, replace if necessary
5. Check oil level before starting
Refill with new line
Replace inner reel
Clean inner reel and outer spool
Disassemble, remove the welded
section and rewind the line
Disassemble and rewind line
Push the Bump Knob and pull out
line until 4 in (102 mm) of line is
outside of the cutting head
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