13 Motore
2. Use of the vehicle
USE AND MAINTENANCE MANUAL
CHAPTER 2
USE OF THE VEHICLE
4-Strokes - Edition 00 / 2022
72
2.1 PRE-OPERATION INSPECTION AND MAINTENANCE
Before riding for break-in operation, practice or a race, make sure the machine is in good operating condition.
Before using this machine, check the following points.
Item
Routine
Page
Coolant
Check that coolant is filled up to the radiator cap. Check the cooling system for leakage.
page 104
Fuel
Check that a fresh mixture of oil and gasoline is filled in the fuel tank. Check the fuel line for
leakage.
page 61
Engine oil
Check that the oil level is correct. Check the crankcase for leakage.
page 101
Gear shifter and
clutch
Check that gears can be shifted correctly in order and that the clutch operates smoothly.
page 51
Throttle grip/Housing Check that the throttle grip operation and free play are correctly adjusted. Lubricate the
throttle grip and housing, if necessary.
page 52
Brakes
Check the play of front brake and effect of front and rear brake.
page 85
Drive chain
Check drive chain slack and alignment. Check that the drive chain is lubricated properly.
page 72
Wheels
Check for excessive wear and tire pressure. Check for loose spokes and have no excessive
play.
page 73
Steering
Check that the handlebar can be turned smoothly and have no excessive play.
page 132
Front forks and rear
shock absorber
Check that they operate smoothly and there is no oil leakage.
–
Cables (wires)
Check that the clutch and throttle cables move smoothly. Check that they are not caught
when the handlebars are turned or when the front forks travel up and down.
–
Muffler
Check that the muffler is tightly mounted and has no cracks.
–
Rear wheel sprocket
Check that the rear wheel sprocket tightening bolt is not loose.
page 72
Lubrication
Check for smooth operation. Lubricate if necessary.
–
Bolts and nuts
Check the chassis and engine for loose bolts and nuts.
–
Settings
Is the machine set suitably for the condition of the racing course and weather or by taking
into account the results of test runs before racing? Are inspection and maintenance
completely done?
page 58
2.2 RUNNING IN
Running-in is important to allow the assembled rotating parts and sliding surfaces to combine with each other, as well as to allow the
driver to become familiar with the vehicle:
– Warm up the engine and drive for about 20 minutes with a throttle valve opened by 1/2 or less;
– Stop and check: fixings, possible leakage of liquids and/or other problems;
– Then drive for another 40 minutes with a throttle valve opened by 3/4 or less;
– Stop again and check thoroughly: fixings, possible leakage of liquids and/or other problems. In-depth checks and adjustments are
particularly necessary for cable paths, brake clearance, chain tensioning, spokes loosening and fixing points of the various vehicle
components.
Repeat the procedures described each time they are replaced: piston, piston rings, valves, cylinder, crankshaft bearings.
Piston, piston rings and valves: run in for 30 minutes with a throttle valve opening of 1/2 or less. Cylinder, crankshaft and
bearings: run in one hour with a throttle valve opening of 1/2 or less
This vehicle is equipped with an automatic engine stop system, which stops it if it is leaft idle for 7 minutes. If the engine
stops, press the starter switch to restart it.
After the first 3 hours or 15 litres of fuel, change the engine oil and replace the engine oil filter.
