Spray the entire length of the chain with a high-quality motorcycle chain lube. 5. Valve Clearance Adjustment
A loose chain will slip off the sprockets and crack the engine case, while a tight chain binds the suspension and snaps.
Fuel stabilizer helps, but draining the fuel bowl completely via its bottom drain screw prevents varnish buildup in the jets.
| Fastener | Torque (Nm) | |----------|-------------| | Spark plug | 10–12 | | Cylinder head bolts | 18–22 | | Valve locknuts | 8–10 | | Rear axle nut | 55–60 | | Engine mount bolts | 35–40 |
Always wear safety glasses, mechanics gloves, and closed-toe shoes.
Refill through the dipstick hole and verify the level is between the upper and lower marks.
Check primary resistance (ohms) from the input tab to the ground. It should read low resistance (under 1 ohm).
Adhering to a strict maintenance schedule preserves the lifespan of your ATV and ensures rider safety. Clean or replace parts more frequently if riding in excessively dusty, muddy, or wet conditions. Break-In Period (First 10 Hours of Use) Change the factory engine break-in oil. Check and tighten all chassis nuts, bolts, and fasteners. Inspect and adjust throttle cable free play. Check chain tension and alignment. Every 20 Hours (or Every 3 Months) Inspect, clean, and re-oil the air filter. Clean and inspect the spark plug; replace if eroded. Inspect front and rear brake pads for wear. Check tire pressure and inspect tread for damage. Lubricate the drive chain. Every 50 Hours (or Every 6 Months) Change the engine oil.
NGK CR7HSA or Torch A7TC (Gap: 0.6mm–0.7mm / 0.024"–0.028").
Clean the inside of the airbox housing, reinstall the filter, and secure the cover. Spark Plug Inspection and Replacement
Hb Atv 125 Service — Manual Extra Quality
Spray the entire length of the chain with a high-quality motorcycle chain lube. 5. Valve Clearance Adjustment
A loose chain will slip off the sprockets and crack the engine case, while a tight chain binds the suspension and snaps.
Fuel stabilizer helps, but draining the fuel bowl completely via its bottom drain screw prevents varnish buildup in the jets. hb atv 125 service manual
| Fastener | Torque (Nm) | |----------|-------------| | Spark plug | 10–12 | | Cylinder head bolts | 18–22 | | Valve locknuts | 8–10 | | Rear axle nut | 55–60 | | Engine mount bolts | 35–40 |
Always wear safety glasses, mechanics gloves, and closed-toe shoes. Spray the entire length of the chain with
Refill through the dipstick hole and verify the level is between the upper and lower marks.
Check primary resistance (ohms) from the input tab to the ground. It should read low resistance (under 1 ohm). Fuel stabilizer helps, but draining the fuel bowl
Adhering to a strict maintenance schedule preserves the lifespan of your ATV and ensures rider safety. Clean or replace parts more frequently if riding in excessively dusty, muddy, or wet conditions. Break-In Period (First 10 Hours of Use) Change the factory engine break-in oil. Check and tighten all chassis nuts, bolts, and fasteners. Inspect and adjust throttle cable free play. Check chain tension and alignment. Every 20 Hours (or Every 3 Months) Inspect, clean, and re-oil the air filter. Clean and inspect the spark plug; replace if eroded. Inspect front and rear brake pads for wear. Check tire pressure and inspect tread for damage. Lubricate the drive chain. Every 50 Hours (or Every 6 Months) Change the engine oil.
NGK CR7HSA or Torch A7TC (Gap: 0.6mm–0.7mm / 0.024"–0.028").
Clean the inside of the airbox housing, reinstall the filter, and secure the cover. Spark Plug Inspection and Replacement