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ENGINE INSTALLATION (Continued)
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Fig69.
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Step 17. Loosen the left, rear screw in the center chassis
brace (37), and the two forward screws in the transmission, so
that the engine can be installed. Slide the engine into place
from the left side of the chassis. The rear engine mount (151)
should fit under the transmission, and the front engine mount
(151) should fit under the center chassis brace (37).
Step 18. There are two sets of holes in the engine mounts
(151 ). If you are installing an engine with a pull start, the holes
in the chassis (27) should be lined up with the rear set of holes
in the engine mounts (151). This will mount the engine farther
forward. If you are installing an engine without a pull start, the
holes in the chassis (27) should be lined up with the front set
of holes in the engine mounts (151). This will mount the en-
gine farther back.
Step 19. Insert a 4-40 x 3/8" flat head screw (31) into
each of the two holes in the engine mounts (151) that are clos-
est to the center of the engine.
Step 20. Insert a 4-40 x 7 /8" flat head screw (158) into
the front and rear holes in the engine mounts (151). These two
screws (158) pass through the engine mounts (151) and thread
into the transmission housing and center chassis brace (37).
Step 21. Tighten all four engine mount screws (31), the
screw in the center chassis brace (37), and the two screws in
the transmission that were loosened earlier.
~
It's a good idea to use a thread locking compound
on the threads of the screws in the engine mounts.
Fig 70.
Step 22. Once all of the screws in the bottom of the
engine mounts (151) are tight, check the gear mesh between
the clutch bell gear (146) and the spur gear (81). If the gear
mesh is extremely tight, and you are using a pull start motor,
chances are that you installed the engine mounts (151) using
the wrong set of holes. If the gear mesh is extremely loose,
and you are using a non-pull start motor, you've probably used
the wrong holes in the engine mounts (151 ). If you are having
one of the two problems mentioned, return to figure 68 and
install the engine mounts (151) to the chassis (27) using the
other set of holes.
Step 23. With the four screws holding the engine to the
engine mount loose, make your final alignment of the clutch
bell (146) to the spur gear (81 ). The motor can be moved slightly
because the 4-40 screws are slightly smaller than the metric
size holes in the engine. Once the alignment is correct (a small
amount of gear backlash is necessary), tighten all of the screws
(124), (152) except for the one with the eyelet (149). Now,
tighten the screw with the eyelet (149) attached, making sure
that the eyelet remains facing towards the carburetor when
the screw' (124), (152) is tight.
Figure 69
Figure 70
31
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