162fmj Engine Service Manual | Fix

To help customize this manual for your specific machine, what is this engine installed in? Also, Share public link

: Loosen the locknut, turn the adjuster square-head screw until there is a slight drag on the feeler gauge, hold the screw, and tighten the locknut.

The 162FMJ is a highly popular 150cc single-cylinder, four-stroke, air-cooled motorcycle engine. Based on the legendary Honda CG125 overhead valve (OHV) architecture, this engine powers millions of commuter motorcycles, dirt bikes, and ATVs globally. Its pushrod design makes it exceptionally durable and easy to maintain.

: Re-adjust valve clearance. Inspect pushrods for straightness by rolling them on a flat glass surface. If you need specific help with a repair, tell me:

To keep your 162FMJ running optimally, follow this maintenance schedule: (600-900 miles) Change (10W-40 or 15W-40 JASO MA) Oil Screen/Filter Every oil change Clean the centrifugal screen (right side) Valve Clearance or at hard starting Adjust valve lash Spark Plug Check gap and clean (0.6–0.7mm) Air Filter , Replace if needed Clean or replace paper element Clutch Cable Lubricate and adjust play Idle Speed Adjust carburetor idle ( 3. Detailed Service Procedures 3.1. Engine Oil Change & Screen Cleaning 162fmj Engine Service Manual

⚠️ Some so-called “162FMJ manuals” are poorly translated. Always double-check torque specs and clearances with Honda Wave 125 data.

Single-cylinder, OHV (Overhead Valve), canted at 15 degrees. Bore and Stroke: 62.0mm x 49.5mm.

Are you planning a or a full engine teardown ? Service manual part engine For CG-125/150

Unlike standard modern engines, the 162FMJ rarely features a disposable paper oil filter. Instead, it relies on two internal systems: To help customize this manual for your specific

Following a strict maintenance schedule is the best way to prevent catastrophic failure.

Inspect the pushrods for straightness by rolling them on a flat pane of glass. Replace if bent. Issue 3: Clutch slipping under load or high RPMs

Check and adjust valve clearance, inspect clutch cable freeplay, clean oil centrifugal filter.

The oil pump sits directly below the clutch basket. Remove its retaining screws to check the inner and outer rotors for scoring. A faulty oil pump will quickly destroy the top-end assembly. Troubleshooting Common Engine Failures Engine Will Not Start Based on the legendary Honda CG125 overhead valve

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Clean the oil strainer screen and spring to remove metal debris.

: Periodically check valve clearances using a feeler gauge to maintain performance and prevent engine damage.

Disconnect the clutch cable. Remove the kickstarter lever and the right-side crankcase bolts. Tap gently with a rubber mallet to break the gasket seal.

Soak new friction plates in oil for 30 minutes before installation. 5. Summary

The Ultimate 162FMJ Engine Service Manual: Maintenance, Repair, and Tuning Guide