Shindaiwa X7506720300 オーナーマニュアル

13

If a new gasket is not available and/

or the old gasket is not damaged, the 

old gasket may be reused. Never use 

cracked or damaged gaskets!

Turn adjustment screw (clockwise = 

4. 

tighter, counter-clockwise = looser) 

until feeler gauge is almost snug.  

Back off just enough to allow gauge 

to slip out with limited resistance.

While holding the adjustment 

5. 

screw in place with the Allen driver, 

tighten the locknut with a wrench.

Turn engine over several times, and 

6. 

returnthe  to TDC-compression. 

Recheck with proper feeler gauge 

to make sure clearance adjust-

ment did not change as a result of 

tightening the locknut. Readjust as 

necessary.

Replace rocker arm cover gasket 

7. 

to assure proper sealing and install 

cover.

Remove cylinder cover, rocker arm 

1. 

cover, and spark plug.  Rotate the 

crankshaft while observing the piston 

through the spark plug opening. When 

the piston is at the top of the compres-

sion stroke (TDC), the valves can be 

adjusted.

Loosen adjuster locknut so that the 

2. 

2.5 mm Allen socket head adjust-

ment screw can turn freely.
Insert 0.10 mm feeler gauge 

3. 

between valve stem tip and rocker 

arm.

Performing a valve adjustment 

 

■

incorrectly may cause hard 

starting and/or can damage the 

engine.
If you are unfamiliar with this 

 

■

engine or uncomfortable with 

this procedure, consult with an 

authorized Shindaiwa servicing 

dealer.

Hard starting or a gradual loss of perfor-

mance can be caused by carbon deposits 

lodged in the spark arrester screen. For 

maximum performance, the spark arrester 

screen should be periodically cleaned as 

follows.

Remove engine cover to expose 

1. 

muffler. Remove the spark arrester 

from the muffler. The arrester is 

press-fit in place; there are three 

screws to remove.

Use a plastic scraper or wire brush 

2. 

to remove carbon deposits from 

the arrester screen and wipe clean 

exhaust base. 
Inspect the screen carefully, and 

3. 

replace any screen that has been 

perforated, distorted, or is otherwise 

unserviceable. 
Press the spark arrester into the 

4. 

exhaust base. 

If carbon accumulation in the muffler 

or cylinder are severe, or if you do not 

notice an improvement in performance 

after servicing, have the unit inspected 

by an authorized servicing Shindaiwa 

dealer. 

WARNING! 
Never operate this unit 

with a damaged or missing muffler 

or spark arrester! Operating with 

missing or damaged exhaust com-

ponents is a fire hazard, and can 

also damage your hearing!