61, 65 and 70 Series Vertical Shaft Engines
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IV. Unusual exhaust tone
There are tools that the technician can use in order to define the problem, such as:
1. Interview the customer.
1a. Get a good description of their complaint.
1b. If it is an intermittent problem, verify what conditions aggravate the problem as best as possible.
1c. Get an accurate service history of the equipment.
1d. Find out how the customer uses and stores the equipment.
2. Direct observation:
2a. Do not automatically accept that the customer is correct with their description of the problem. Try to
duplicate the problem.
2b. Check the general condition of the equipment (visually).
I. Cleanliness of the equipment will indicate the level of care the equipment has received.
II. Make sure the engine and attachments are securely fastened.
III. The tune-up factors.
NOTE: Most hard starting and poor running conditions can be solved by performing a tune-up.
a. Check the condition and amount of oil in the crankcase.
b. Check the level and condition of the fuel.
c. Check the ignition and “read” the spark plug.
d. Look for obvious signs of physical damage, exhaust system blockage or cooling system block-
age.
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