Top Cowling; Checking The Top Cowling; Fuel System; Checking The Fuel Joint And Fuel Hoses (Fuel Joint-To-Fuel Injector) - Yamaha F80B 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.

Fuel system

Checking the fuel joint and fuel
hoses (fuel joint-to-fuel injector)
1. Remove the flywheel magnet cover.
3-3
Periodic checks and adjustments
S60C3010
a
2
1
b
S6D83010
2. Check the low-pressure fuel hose con-
3
nections and fuel joint for leaks. Replace
if necessary. Also, check the fuel filter 1,
fuel pump 2, strainer 3, and fuel cooler
4 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 5, fuel
rail 6, fuel injectors 7, and pressure
regulator 8 for leaks or deterioration.
Replace if necessary.
8
5
4

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.
1
2
3
NOTE:
Be sure not to spill any fuel when removing
the fuel filter cup.
7
6
3
2
1
S6D83020
S6D83030
6D93G11