Cleaning Out Of The Oil Pipe System - JAWA 350 Workshop Manual

WORKSHOP MANUAL
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e) The basic setting of segment for engines 638 (pump type 22) is 15° and is executed as
follows : - insert gauge 638( No.of prod.9.71.87536.4,
width 3,5mm) between segment and attachment stop
- use electric pen to mark new gauge line(B)
(determinating basic setting of oil pump) facing gauge
line on attachment
f) Adjusting of bowden of carburettor . The slide gate has
to be in lowest position
g) When freewheel slide gate position is changed , it´s
necessary to adjust oil pump bowden following point e)
h) If air vent of oil pump occurs, release the deaeration
screw on face of pump ( above regulating segment) .
After filling the pump with oil tighten the screw and with
slightly increased revolutions we turn over by hand
the segment into maximum position. This procedure
accelerates the deaeration of piping into engine.
Attention ! The oil level has always to be checked-up
after covering 500 kms.
To pic
1 – segment
2 – attachment

6.3. Cleaning out of the oil pipe system

In case of blocked oil pump with filth, it´s necessary to proceed as follows :
1. Dismantle oil tank from rear part of underseat space of motorcycle. Pour out the oil from
tank and flush the empty tank (spirit, benzine). The original outlet placed in lower part of
tank replace by a new one equipped with sieve (prod.No.451964039013)
2. Flush also the feeding transparent pipe of bigger diameter and proceed following point 2b)
3. Dismantle feeding oil tube to engine from inlet suction branch valve and clean the valve
with compressed air in the direction of oil flow
4. Drain fully the fuel tank and pour in 1 liter of mixture (fuel/oil) 1: 50
5. Cover in a adequate manner the inlet of securing valve, start up the engine and wait until
some 50cm3 of original soiled oil flows out
6. Switch off the engine, loosen securing valve and connect the whole system
7. After refilling the fuel tank and assemby of oil pump on motorcycle, we proceed following
point 2a. Deaerate the oil pump according point 2h.
A - original gauge MIKUNI
B - new gauge JAWA
X - space for gauge
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