Kohler Command Pro CV980 - Manual (Page 36)

5.8
Section 5
Fuel System and Governor
Figure 5-11. Setting High Speed RPM (Air Cleaner
Removed for Clarity).
Carburetor Servicing
The following section covers the disassembly,
various servicing procedures and reassembly of the
carburetor. For each procedure carefully inspect
all components and replace those that are worn or
damaged. The following should also be noted as
ŠĜ•’ŠŽȱœŽ›Ÿ’Œ’—ȱ’œȱ™Ž›˜›–Žǯ
• Inspect the carburetor body for cracks, holes, and
other wear or damage.
ȱ Ȋȱ —œ™ŽŒȱ‘Žȱ̘Šȱ˜›ȱŒ›ŠŒ”œǰȱ‘˜•ŽœǰȱŠ—ȱ–’œœ’—ȱ
˜›ȱŠ–ŠŽȱ̘ŠȱŠ‹œǯȱ‘ŽŒ”ȱ‘Žȱ̘Šȱ‘’—ŽȱŠ—ȱ
œ‘ŠĞȱ˜›ȱ ŽŠ›ȱ˜›ȱŠ–ŠŽǯ
• Inspect the fuel inlet needle and seat for wear or
damage.
• The choke plate is spring loaded. Check to make
œž›Žȱ’ȱ–˜ŸŽœȱ›ŽŽ•¢ȱ˜—ȱ‘Žȱœ‘ŠĞǯ
DZȱ ‘Žȱ–Š’—ȱŠ—ȱœ•˜ ȱ“ŽœȱŠ›Žȱę¡ŽȱŠ—ȱœ’Žȱ
œ™ŽŒ’ęŒȱŠ—ȱŒŠ—ȱ‹Žȱ›Ž–˜ŸŽȱ’ȱ›Žšž’›Žǯȱ
Fixed jets for high altitudes are available.
Float Replacement
If symptoms described in the carburetor
›˜ž‹•Žœ‘˜˜’—ȱž’Žȱ’—’ŒŠŽȱ̘Šȱ•ŽŸŽ•ȱ™›˜‹•Ž–œǰȱ
›Ž–˜ŸŽȱ‘ŽȱŒŠ›‹ž›Ž˜›ȱ›˜–ȱ‘ŽȱŽ—’—Žȱ˜ȱŒ‘ŽŒ”ȱŠ—Ȧ
˜›ȱ›Ž™•ŠŒŽȱ‘Žȱ̘ŠǯȱœŽȱŠȱ̘Šȱ”’ȱ˜ȱ›Ž™•ŠŒŽȱ‘Žȱ̘Šǰȱ
™’—ǰȱ̘ŠȱŸŠ•ŸŽǰȱŒ•’™ǰȱŠ—ȱœŒ›Ž ǯ
1. Perform the removal procedures for the
appropriate air cleaner and the carburetor
˜ž•’—Žȱ’—ȱŽŒ’˜—ȱŞȱȃ’œŠœœŽ–‹•¢ǯȄȱ
ȱ Řǯȱ •ŽŠ—ȱ‘ŽȱŽ¡Ž›’˜›ȱœž›ŠŒŽœȱ˜ȱ’›ȱ˜›ȱ˜›Ž’—ȱ
material before disassembling the carburetor.
Remove the four mounting screws and carefully
separate the fuel bowl from the carburetor. Do
—˜ȱŠ–ŠŽȱ‘Žȱ’——Ž›ȱ˜›ȱ‹˜ •ȱȬ’—ǯȱ›Š—œŽ›ȱ
any remaining fuel into an approved container.
Save all parts. Fuel can also be drained prior to
‹˜ •ȱ›Ž–˜ŸŠ•ȱ‹¢ȱ•˜˜œŽ—’—Ȧ›Ž–˜ŸŠ•ȱ˜ȱ‘Žȱ‹˜ •ȱ
›Š’—ȱœŒ›Ž ǯȱŽŽȱ’ž›ŽȱśȬŗŘǯȱ
Figure 5-12. Fuel Bowl Removed From Carburetor.
ȱ řǯȱ Ž–˜ŸŽȱ‘Žȱ̘Šȱ™’—ȱœŒ›Ž ȱŠ—ȱ•’Ğȱ˜žȱ‘Žȱ
˜•ȱ̘Šǰȱ™’—ȱŠ—ȱ’—•Žȱ—ŽŽ•ŽǯȱŽŽȱ’ž›ŽȱśȬŗřǯȱ
Discard all of the parts. The seat for the inlet
needle is not serviceable, and should not be
removed.
Figure 5-13. Removing Float and Inlet Needle.
4. Clean the carburetor bowl and inlet seat areas as
required, before installing the new parts.
ȱ śǯȱ ĴŠŒ‘ȱ‘Žȱ’—•Žȱ—ŽŽ•Žȱ˜ȱ‘Žȱ™•Šœ’ŒȱŠ—ȱ˜ȱ
‘Žȱ̘Šȱ ’‘ȱ‘Žȱ ’›ŽȱŒ•’™ǯȱ‘Žȱ˜›–ŽȱşŖǚȱ•’™ȱ
should point up, with the needle valve hanging
˜ —ǯȱŽŽȱ’ž›ŽȱśȬŗŚǯ
Move and Hold
Lever in "Full
Throttle" Position
High Speed (RPM)
Adjustment Screw
Fuel Bowl
Bowl Drain Screw
Float
Inlet
Needle