JMCHstore Aluminum Racing Intake Manifold for Coleman CT100U/CC100X 98cc — 19mm PZ19 Bore, Cast-Aluminum High-Flow

High-flow aluminum racing intake manifold engineered to boost throttle response and fit 98cc CT100U/CC100X and compatible 79–154F mini bike and go-kart engines.

This lightweight cast-aluminum inlet manifold from JMCHstore replaces stock rubber or low-volume fittings with a rigid 19mm bore designed for performance-minded mini-bike and go-kart builds. It’s built to accept PZ19-style flanged carburetors and includes the engine-side gasket and mounting bolts so you can swap it in quickly. The manifold’s solid construction helps stabilize carburetor alignment and reduce air leaks common with aging stock manifolds.

Will this manifold fit my Coleman CT100U, CC100X, or similar 98cc mini bike?

Yes — this manifold was made to work with Coleman CT100U and CC100X 98cc mini bike engines and several drop-in engines listed by JMCHstore. Confirm flange bolt spacing and 19mm carb outlet compatibility before purchase. If your carb uses a different flange or bore size you will need an adapter or a matching PZ19 carburetor.

• Direct fit for CT100U/CC100X 98cc and RB100 99cc models where flange spacing matches.
• Works with Massimo MB100 and compatible 79–99cc mini-bike engines.
• Requires a PZ19 or other flanged 19mm carburetor for proper sealing and fit.
• Includes engine-side gasket and two M6 bolts for mounting.

How does the JMCHstore aluminum manifold change performance and reliability?

The rigid cast-aluminum body resists warping and air leaks better than soft rubber manifolds, improving throttle response and consistency under load. A solid 19mm intake stream reduces turbulence at the carburetor flange, supporting better fuel-air mixture delivery in tuned setups. It’s not a horsepower miracle but a practical upgrade for smoother throttle and fewer suction leaks.

• Precision-aligned carb flange reduces misalignment and vacuum leaks.
• Aluminum construction dissipates heat and maintains shape under stress.
• Solid 19mm bore optimizes air path for PZ19 carburetors.
• Supplied gasket prevents leaks at the engine interface.

Do I need to modify anything to install this on a go-kart or different engine?

Minor modifications can be required for non-native platforms like some go-karts where throttle cable geometry or carburetor flange types differ. The manifold is primarily intended for mini bikes; when using on go-karts you may need to alter the throttle linkage or use an adapter plate. Check clearance with intake location and surrounding frame tubes before tightening the bolts.

• Throttle cable reroute or custom bracket may be necessary on go-karts.
• Carburetor must be a PZ19 or have a compatible flanged interface.
• Verify bolt hole pattern and use supplied M6 bolts for mounting.
• Test fit for frame clearance and heat-sensitive nearby components.

What’s included and are there important installation tips?

The package ships with one aluminum manifold, one engine-side gasket, and two M6 mounting bolts so you can begin installation right away. Use a light gasket sealant if desired and torque bolts evenly to avoid distorting the flange. After installation, check for air leaks and proper carb alignment before running the engine at full throttle.

• Package: 1 manifold, 1 gasket, 2 M6 bolts included.
• Recommended carb: PZ19 or equivalent flanged 19mm carburetor.
• Use even bolt torque and inspect for vacuum leaks post-install.
• Be prepared to adjust throttle cable path or linkage on go-karts.

Who is this for: Builders and hobbyists upgrading mini bikes, restorers replacing aged rubber manifolds, and DIY go-kart tuners seeking a stiffer intake connection for 79–154F style small engines. If you run a CT100U/CC100X, RB100, Predator 79cc, or other listed engines and plan to use a PZ19-style carb, this manifold offers a durable, performance-oriented mounting point with included hardware to get you started.