Intake Manifold | Honda CL360 / CJ360 / CB360

Description

Intake Manifold | Honda CB360 / CL360 / CJ360

Hard starting, backfiring, or running lean on one cylinder? The rubber intake manifolds between the carburetors and cylinder head crack and harden over time, creating vacuum leaks that make tuning impossible. Replace them — it’s one of the most impactful maintenance items on a CB360.

Why You Need This

The intake manifolds — also called carb boots, carburetor insulators, intake pipes, or carb holders — are rubber components that seal the carburetors to the cylinder head. After 50 years, the rubber hardens, cracks, and no longer seals. Even hairline cracks cause vacuum leaks that make the engine run lean, backfire on deceleration, and refuse to idle properly. No amount of carburetor tuning will fix a vacuum leak at the manifold.

Our replacements are a direct fit for all CB360, CL360, and CJ360 models. Each manifold includes the die-cut mounting gasket (the same gasket included in our service and overhaul gasket kits). Sold individually — you need two per bike.

Specifications

Does NOT fit: Honda CB350 / CL350 / SL350 — those models use a different manifold. See our CB350 Intake Manifold.

Pod filter warning: The factory manifolds were designed to work with the stock air box, which supports the carburetors from both sides. If you’re running pod filters, the unsupported weight of the carburetors hangs entirely on the manifolds. Over time this can split the rubber from the mounting flange. Consider fabricating a hanging support bracket to take the weight off the manifolds.

Installation

Difficulty: Beginner

1. Remove the carburetors — Disconnect throttle cables, fuel lines, and loosen the manifold clamps.
2. Remove the old manifolds — Unbolt the manifold flanges from the cylinder head. Remove the old gaskets.
3. Install new gaskets — Place the included die-cut gaskets on the cylinder head studs.
4. Install new manifolds — Bolt the flanges to the head. Do not overtighten — the rubber flange can distort.
5. Reinstall carburetors — Slide the carbs into the manifolds and tighten the clamps. Use new stainless steel manifold clamps if the originals are rusty or weak.