Yamaha YZF-R125 Service Manual: Checking the exhaust system

Yamaha YZF-R125 Service Manual / Periodic checks and adjustments / Engine / Checking the exhaust system

1. Check:

Exhaust assembly "1" Cracks/damage → Replace.
Exhaust pipe gasket "2" Exhaust gas leaks → Replace.

2. Check:

Tightening torques of the exhaust pipe nuts "3" and exhaust assembly bolts "4"

Checking the exhaust system

Checking the cylinder head breather hose

1. Remove: Left side panel Refer to "GENERAL CHASSIS" on page 4-1. 2. Check: Cylinder head breather hose "1" Cracks/damage → Replace. Loose connection → Connect properly ...

Checking the coolant level

1. Stand the vehicle on a level surface. NOTE: Place the vehicle on a suitable stand. Make sure the vehicle is upright. 2. Check: Coolant level The coolant level should be between the max ...

Other materials:

Engine specifications
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Checking the decompression system
1. Check: Decompression system a. Check the decompression system with the camshaft sprocket and the decompression cam installed to the camshaft. b. Check that the decompression lever "1" moves smoothly. c. Without operating the decompression lever, check that the decompression cam " ...

Troubleshooting
The ignition system fails to operate (no spark or intermittent spark). NOTE: Before troubleshooting, remove the following part(s): 1. Seats 2. Fuel tank 3. Right side cover 4. Left side panel 5. Left upper side cowling ...