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Figure 31
1. Foam element
4. When servicing foam element, check condition of
paper element. Clean or replace as required.
5. Install foam element, paper element, and air cleaner
cover.
Important
Do not operate the engine without the air
cleaner element because extreme engine wear and damage
will likely result.
Replacing the Spark Plug
Use an NGK BPR 5ES spark plug or equivalent. Correct
air gap is 0.028–0.032 in. Remove plug after every 100
operating hours and check its condition.
1. Pull wire off spark plug (Fig. 32).
2. Clean around spark plug and remove plug from
cylinder head.
Figure 32
1. Spark plug wire
Important
Replace a cracked, fouled, or dirty spark
plug. Do not sand blast, scrape, or clean electrodes
because engine damaged could result from grit entering
the cylinder.
2. Paper element
25
3. Set air gap at 0.028–0.032 in. (Fig. 33). Install
correctly gapped spark plug and tighten firmly to
17 ft.-lb.
Figure 33
Cleaning the Fuel Filter
Initially, clean fuel filter after the first 20 hours of
operation; thereafter clean after every 50 hours operation.
1. Close fuel shut off valve and unscrew bowl from filter
body (Fig. 34).
Figure 34
1. Shut-off valve
2. Clean bowl and filter in clean gasoline and install.
Changing the Transmission
Fluid
The fluid level in the transmission should be checked at
50 hour intervals; refer to Checking the Transmission
Fluid, page 14. Change the transmission fluid after the
first 50 hours of operation and every 2 years thereafter.
Important
Use only Dexron lll or equivalent
transmission fluids. Other fluids could cause system
damage.
1. Place a drain pan at the rear of the machine.
2. Bowl
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