88 TS 700, TS 800
A damaged impulse hose may lead 
to impaired engine performance.
– Remove shroud, b 7.4
– Remove air guide shroud,
b 7.5
– Unscrew the rubber buffers on 
the ignition and clutch sides, 
b 10.2
– Unscrew the rubber buffers for 
the front handle,
b 10.1
– Remove the carburetor, 
b 12.2.1
– Troubleshooting, b 4.4 or
b 4.5
: Press the impulse hose out of the 
hole in the tank housing, towards 
the cylinder.
: Disconnect the impulse hose (1) 
from the cylinder.
The impulse hose is shown without 
intake manifold for clarity.
– Reassemble parts in reverse 
order.
1
Note:
Ensure that the impulse hose is 
routed correctly and without kinking.
– Coat with Press Fluid OH 723, 
b 14
Note:
Draw the impulse hose into the hole 
in the tank housing until the 
circumferential groove on the 
impulse hose engages the tapered 
end of the hole.
: Draw the impulse hose through 
the hole in the tank housing.
– Reassemble remaining parts in 
reverse order.
A pressure equilibrium must always 
prevail between the inside of the 
fuel tank and the surrounding 
atmosphere to permit troublefree 
operation of the carburetor. This is 
ensured by the tank vent.
If problems develop in the 
carburetor or fuel supply, the tank 
vent must always also be tested and 
replaced if necessary.  Correct 
functioning is determined by testing 
the fuel tank with negative pressure 
via the fuel hose.
– Remove the carburetor, 
b 12.2.1
– Drain the fuel tank.
Note:
Ensure that the fuel is disposed of 
correctly and without harming the 
environment.
: Connect the vacuum pump (1) 
0000 850 3501 to the elbow 
connector (arrow) and apply a 
negative pressure to the fuel 
tank.
1
12.5.3 Impulse hose 12.6 Tank vent
12.6.1 Testing