MVSP Owner’s Manual
Part No 840245
11
840245_B_
LO
IMPELLER
REMOVAL
READ
all safety instructions before servicing unit.
DISCONNECT
spark plug wire before servicing unit.
1.
Wait for engine to cool and disconnect spark plug.
2.
Drain fuel and oil from the engine.
3.
Remove belt cover by removing 5 screws.
4.
Detach drive belt from the transmission pulley by rotating the transmission assembly to relieve belt tension.
5.
Remove engine, impeller and mounting plate by removing bolts around outside of housing.
6.
Leaving engine fastened to plate, remove impeller bolt and lock washer and slide impeller off crankshaft ( A puller may
be required).
CAUTION:
Do not drop impeller.
7.
If impeller does not slide off crankshaft, place two crowbars between impeller and housing on opposite sides. Pry impeller
away from engine until it loosens. Using a penetrating oil can help loosen a stuck impeller
.
8.
If the impeller cannot be loosened, obtain a 1” (25.4mm) longer bolt of the same diameter and thread type as the impeller
bolt. Invert engine and impeller and support engine above ground to prevent recoil damage. Thread longer bolt by hand
into the crankshaft until bolt bottoms. Using a suitable gear or wheel puller against the bolt head and the impeller back-
plate (near the blades), remove impeller from shaft.
9.
To reinstall impeller, use a new impeller bolt and lockwasher
10.
Tighten impeller bolt. Torque impeller bolt to 33-38 Ft. Lbs. (45-52 N.m).
11.
Reinstall engine, impeller, and mounting plate onto housing in reverse order of removal.
12.
Before connecting spark plug wire, slowly pull engine starting rope to insure that impeller rotates freely.
13.
Reconnect spark plug wire.
DRIVE
CLUTCH
CABLE
ADJUSTMENT
READ
all safety instructions before servicing unit.
DISCONNECT
spark plug wire before servicing unit.
1.
Wait for engine to cool and disconnect spark plug.
2.
Engage the clutch lever then pull the unit back until it stops freewheeling. The clutch lever should engage around 2 5/16”
of travel or 4 inches from tip of lever to handle.
3.
Tighten or loosen cable adjuster nut next to the clutch lever until drive engages at 4” from handle. (See
Fig
. 19 next
page)
4.
Holding the adjuster nut in place with one wrench tighten cable lock nut firmly.
5.
Readjust as needed.
6.
Reconnect spark plug.
7.
Test run unit to insure proper operation after this or any other maintenance procedure.
8.
If clutch still will not engage at 4” from handle, remove guard retaining screws and guard.
9.
Measure the amount of spring stretch. Spring should measure 1 1/8” when engaged (Lever 4” from handle). (See
Fig
. 18
next page.)
10.
Release clutch lever and then move it to engagement position again and hold it, check the spring length to assure it
stayed in adjustment.
11.
Re-install guard and fasteners.
NOT FOR REPRODUCTION
