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Cylinder Head-Valves, Camshaft-Intake Manifolds - 90cc ATVs & Dirtbikes

Cylinder heads, valves, camshafts, and intake manifolds are essential for proper airflow and combustion in 90cc ATVs and dirt bikes. When these components wear out or become damaged, riders may experience poor power, hard starting, or inconsistent engine performance. This collection includes key top-end parts designed specifically for Honda-type 90cc engines, helping restore smooth running and reliable power output.

Cylinder Head-Valves, Camshaft-Intake Manifolds - 90cc ATVs & Dirtbikes
15 Items
EXHAUST STUD SOLD PER PC 6mm X 30mm Fit Most 40-300cc Motors, GY6-50-125-150, used on Scooters, ATVs, Dirt Bikes, & Go Karts

EXHAUST STUD SOLD PER PC 6mm X 30mm Fit Most 40-300cc Motors, GY6-50-125-150, used on Scooters, ATVs, Dirt Bikes, & Go Karts

$1.69

Part #: 208201

CYLINDER VALVE RETAINER KEEPER (Pair) Fits Most GY6-50, QMB139, GY6-125, GY6-150 & Honda Copy 50-125cc engines.

CYLINDER VALVE RETAINER KEEPER (Pair) Fits Most GY6-50, QMB139, GY6-125, GY6-150 & Honda Copy 50-125cc engines.

$2.99

Part #: 633678

CYLINDER HEAD VALVE OD=18.4mm L=64mm Fits Most GY6-50, QMB139, GY6-125, GY6-150 & Honda Copy 50-125cc engines.

CYLINDER HEAD VALVE OD=18.4mm L=64mm Fits Most GY6-50, QMB139, GY6-125, GY6-150 & Honda Copy 50-125cc engines.

$9.99

Part #: 633571

CYLINDER HEAD VALVE OD=16mm L=64mm Fits Most GY6-50, QMB139, GY6-125, GY6-150 & Honda Copy 50-125cc engines.

CYLINDER HEAD VALVE OD=16mm L=64mm Fits Most GY6-50, QMB139, GY6-125, GY6-150 & Honda Copy 50-125cc engines.

$9.99

Part #: 633556

VALVE SEAL Fits GY6-50-150cc Scooter, ATV, GoKart and 50-125cc Honda Copy ATV, Dirt Bike Engines

VALVE SEAL Fits GY6-50-150cc Scooter, ATV, GoKart and 50-125cc Honda Copy ATV, Dirt Bike Engines

$2.99

Part #: 633668

INTAKE MANIFOLD Fit Many 50-125cc ATVs ID=20 Total Height=81mm, Bolts Ctr to Ctr = 45 & 48

INTAKE MANIFOLD Fit Many 50-125cc ATVs ID=20 Total Height=81mm, Bolts Ctr to Ctr = 45 & 48

$14.99

Part #: 634408

Spark Plug NGK CR7HS

Spark Plug NGK CR7HS

$6.29

Part #: 633929

Flange Bolt (M 6x 20)

Flange Bolt (M 6x 20)

$1.69

Part #: 633406

HEX CAP NUT (M6)

HEX CAP NUT (M6)

$1.69

Part #: 633404

CAM COVER GASKET (Left Hand)

CAM COVER GASKET (Left Hand)

$1.99

Part #: 633393

VALVE COVER GASKET Honda Clone

VALVE COVER GASKET Honda Clone

$2.49

Part #: 633391

GASKET SET ATV 70/90 4-Stroke HC

GASKET SET ATV 70/90 4-Stroke HC

$16.99

Part #: 633770

OIL DRAIN PLUG 30mm GY6-50 QMB139 49cc, GY6-125, GY6-150 ATVs, GoKarts, Scooter Motors

OIL DRAIN PLUG 30mm GY6-50 QMB139 49cc, GY6-125, GY6-150 ATVs, GoKarts, Scooter Motors

$2.99

Part #: 633390

Cylinder Head Gasket 47mm HC70/90

Cylinder Head Gasket 47mm HC70/90

$5.99

Part #: 633667

Cylinder Head 47mm Honda Copy 70/90 ATV, Dirt Bike (With Valves and Cam) Cam Sprocket Teeth = 28

Cylinder Head 47mm Honda Copy 70/90 ATV, Dirt Bike (With Valves and Cam) Cam Sprocket Teeth = 28

$49.99

Part #: 633371

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