Top Cowling; Checking The Top Cowling; Fuel System; Checking The Fuel Joint And Fuel Hoses (Fuel Joint-To-Fuel Injector) - Yamaha F150A Service Manual

CHK
ADJ

Top cowling

Checking the top cowling

1. Check the fitting by pushing the cowling
with both hands. Adjust if necessary.
2. Loosen the bolts 1.
3. Move the hook 2 up or down slightly to
adjust its position.
NOTE:
• To loosen the fitting, move the hook in
direction a.
• To tighten the fitting, move the hook in
direction b.
4. Tighten the bolts.
5. Check the fitting again and, if necessary,
repeat steps 2–4.
6. Check the top cowling hose for cracks or
damage. Replace if necessary.
3-3
Periodic checks and adjustments
3

Fuel system

Checking the fuel joint and fuel
hoses (fuel joint-to-fuel injector)
1. Remove the spark plug wire cover.
2. Check the low-pressure fuel hose con-
nections and fuel joints for leaks.
Replace if necessary. Also, check the
fuel filter 1, fuel pumps 2, and fuel filter
3 for leaks or deterioration. Replace if
necessary.
3. Check the high-pressure fuel hose con-
nections for leaks. Replace if necessary.
Also, check the vapor separator 4, fuel
rail 5, fuel injectors 6, pressure regula-
tor 7, and fuel cooler 8 for leaks or
deterioration. Replace if necessary.

Checking the fuel filter

1. Check the fuel filter element 1 for dirt
and residue and check the fuel filter cup
2 for foreign substances and cracks.
Clean the cup with straight gasoline and
replace the element if necessary.
S63P3030
3
63P3F11