Subaru Robin Power Products R1200 service manual

uSymptoms

]I

(Air-fuel mixture blow back to the air cleaner)

	I		1
I		1
			ilAir cleaner element
Intake/exhaust	intake	valve,
valve	Valve	seat

B-7 Abnormal running

Fuel consumption is too high. (Black exhaust gas comes out)

Carburetor

a Fuel

Valve opening/ closing timing is not appropriate.

‘7-I

Fitting of valve seat is insufficient,

Blinding

__:

2.Clamping failure (Mixing ratio of air with the fuel is too

‘,Contaminants exist

Checking method

Measure tappet clearance

Check the bearing surface

Check the element

Check the jets Check the fuel

Checking criteria

If the clearance is different from the standard, adjust the clearance, or replace the tappet. Normal :

0.1 +O.O2mm

In case the fitting of the valve seat is insufficient, adjust it or replace the valve seat.

In case the element is blind, clean it.

1

1.In case the jets are defective, re- place them.

2.In case of clamp- ing failure, tighten it again.

.A I I

In case of inappro- priate fuel, replace the fuel

qRemedies

Adjust	the	tappet	Adjust		or	replace	1	Erii;e	or tighten	/
clearance,		or re-	the	intake		valve
							/
place	the tappet.		and	the	valve seat