shamofeng 3-Bolt Starter Kit for 50-125cc Chinese ATV Dirt Bike — 12V 12-tooth CCW PMGR with Relay, CDI & Spark Plug

shamofeng's 3-bolt starter kit is a complete replacement bundle — starter motor, starter solenoid relay, CDI, spark plug, three bolts and angled wrench — designed to resolve starting issues on many 50–125cc Chinese ATVs, dirt bikes, go-karts and quads.

If your Chinese-brand small-displacement vehicle won't crank or struggles to start, this kit groups the most common replacement parts into one purchase so you can diagnose and repair the electrical/start system quickly. The package is built around a 12-tooth, CCW, 12V PMGR starter that fits 3-bolt top-mount engines; included mounting hardware and an angled wrench are intended to simplify installation in tight engine bays.

How will this kit fix my bike’s starting problem?

Because most no-crank or intermittent-crank issues stem from the starter, starter relay, faulty ignition (CDI), or worn spark plug, replacing these parts together eliminates multiple potential failure points at once. This reduces troubleshooting time so you can test the system with fresh components.

• New 12-tooth PMGR starter motor replaces worn starters.
• Starter solenoid relay restores reliable electrical switching.
• CDI replaces old ignition modules that cause misfires or no spark.
• Fresh spark plug ensures proper combustion once the starter and ignition are healthy.

Which engines and brands are compatible with this set?

The kit is made for 3-bolt top-mount engines commonly used across many Chinese small-displacement vehicles. It's widely compatible with 50cc through 125cc models from popular makers and clones.

• Fits Taotao, Coolster, Jonway, SunL, Roketa, SSR and similar Chinese brands.
• Compatible sizes: 50cc, 70cc, 90cc, 100cc, 110cc and 125cc.
• Designed for top-mount starter patterns; not for 2-bolt bottom-mount starters.

What are the critical technical specifications to check before ordering?

Verify your engine uses a 3-bolt top mount starter and that the starter rotates counterclockwise (CCW). Also compare bolt hole spacing and electrical specs to ensure proper fit and function.

• Starter type: 12-tooth, CCW (counterclockwise), permanent magnet geared starter (PMGR).
• Electrical: 12V system compatibility.
• Bolt hole spacing: Bolt Hole A = 2.85" and Bolt Hole B = 3.16"; confirm against your engine plate.

What’s included and how does the angled wrench help?

The kit comes ready with all necessary basics so you can install replacements right away. The included angled wrench is sized to reach mounting bolts in narrow or recessed areas where a straight wrench or socket would be difficult to use.

• Contents: 1 starter motor, 1 starter solenoid relay, 1 CDI unit, 1 spark plug, 3 bolts and 1 angled wrench.
• Angled wrench allows easier access to tight bolt locations during removal and installation.
• Spare parts approach: even if you only need one component, the extras serve as spares for future repairs.

Who this kit is for: This shamofeng starter bundle is aimed at owners and mechanics of Chinese-built 50–125cc ATVs, dirt bikes, quads and go-karts who want a single-purchase solution to common starting and ignition faults. It's ideal if you have a 3-bolt top-mount engine and want to minimize diagnostic time by replacing multiple possible failure items at once. Double-check your starter mount type, rotation direction (CCW), and bolt spacing before ordering to ensure compatibility.