Intake Manifold - TOHATSU 40 Service Manual

SECTION 3
Installation
1. Clean the carburetor mounting surfaces on the intake manifold
with isopropyl alcohol.
2. Install new carburetor base gaskets dry.
3. Mount carburetors to intake manifold and torque to specification.
4. Install all fuel hoses and clamps.
5. Install the oil tank.
6. Install the throttle and choke linkage and reconnect the choke
solenoid or choke knob.
7. Run the engine momentarily to pressurize the fuel system and
check for leaks.
8. Adjust the ignition timing and synchronize the carburetors. Refer
to Synchronization and Linkage Adjustments in Section 2.
9. Mount air silencer to carburetors. If gaskets are required, apply
gasket sealant to air silencer side of new gaskets. Use Loctite 242
on mounting screw threads and torque to specification.
10. Install air silencer cover and new gasket. Apply gasket sealant
to air silencer side of gasket. Torque cover bolts to specification.

INTAKE MANIFOLD

Disassembly
1. Remove the carburetors. See Carburetor, this section.
2. Disconnect the linkage at the throttle cam.
3. Remove the crankcase recirculation hose from the manifold
(models 80, 90, 115, 120, and 140).
4. Remove recoil starter or flywheel cover as applicable.
5. Remove the manifold bolts and manifold.
Reed valve assemblies are not bolted to the
manifold on models 80, 90, 115, 120, and 140.
Valves assemblies could fall off and be damaged
if they stick to the manifold when removing it.
3-24
CAUTION
3-/ 4-Cylinder