Cam Chain Tensioner Kit | Honda CB350 / CL350 / SL350
If you're doing a top-end rebuild on your Honda 350 twin, the cam chain tensioner system and its associated parts should be inspected and replaced if worn. We regularly see tensioner rollers chewed up from a previous owner not properly adjusting the cam chain — which itself may need to be swapped out. This kit includes all four components of the tensioner system so you can replace everything at once.
Why You Need This
The Honda CB350/CL350/SL350 uses an automatic hydraulic cam chain tensioner that requires no manual adjustment — constant tension is applied to the cam chain by the hydraulically actuated cam chain roller. But that only works when all four tensioner components are in good condition. Over time, the rubber rollers harden and deteriorate, the chain guide wears down, and the roller shaft end cushions compress. When these parts fail, the cam chain runs loose, valve timing drifts, and you'll hear a rattling noise from inside the engine.
All parts in this kit are made in Japan. Buying the complete kit saves you a few bucks over ordering the components individually.
Specifications
| Spec | Detail |
|---|
| Replaces OEM Part Numbers | 14601-312-000, 14500-312-000, 14607-286-000, 14611-312-000 |
| Fits Models | CB350 (1968–1973), CL350 (1968–1973), SL350 (1969–1973) |
| Sold As | Complete kit (4 components) |
| Origin | Made in Japan |
| Tensioner Type | Automatic hydraulic (no manual adjustment required) |
Note: The CB360 uses a completely different cam chain tensioner design. This kit does NOT fit the CB360, CL360, or CJ360.
What's in the Kit
- Large roller wheel × 1 (rides on the cam chain)
- Small tensioner wheel × 1 (mounted to the pivoting bracket)
- Chain guide × 1 (installs in the cylinder)
- Roller shaft end cushions × 2
Note: The tensioner plunger (located between the cylinders) is not included in this kit. Inspect it for proper operation during reassembly — the spring or lock screw is often broken or missing.
Installation
Difficulty: Advanced (requires engine disassembly)
- With the engine cases together and the cam chain routed through, install the large roller wheel onto its pivot pin with assembly lube. The inner pin sleeve has a small notch — orient it so the notch lines up with its mating surface.
- Install the roller shaft end cushions on each side of the pivot pin. The rounded half-round side faces down. Place a rag over the crankcase opening before handling small parts to prevent dropping anything into the engine.
- The chain guide installs in the cylinder — it goes in when the cylinders are mounted to the cases.
- Inspect the tensioner plunger between the cylinders for proper spring tension and lock screw condition before buttoning up the engine.
- Use a chain breaker/press tool to press the master link together when reconnecting the cam chain.
- Lube all rolling and pivoting parts with motor oil during assembly.
When reinstalling the cam chain roller pin, the cutout must face toward the top of the engine. This orientation is specified in the Honda factory service manual.
Our CB350/CL350 engine rebuild video covers the complete cam chain tensioner system installation — including roller orientation, end cushion placement, and master link pressing — as part of a full engine reassembly.
Frequently Asked Questions
Does this kit fit the Honda CB360?
No. The CB360, CL360, and CJ360 use a completely different cam chain tensioner design. This kit only fits the CB350, CL350, and SL350.
How do I know if my cam chain tensioner needs to be replaced?
Common signs include a rattling or slapping noise from inside the engine at idle, especially when the engine is cold. If the rollers are hardened, cracked, or visibly chewed up, they need to be replaced. If you have the engine apart for a top-end rebuild, inspect all four tensioner components — if the rubber is hard or deteriorated, replace them while you're in there.
Does the Honda 350 cam chain tensioner require manual adjustment?
No. The CB350/CL350/SL350 uses an automatic hydraulic cam chain tensioner. According to the Honda factory service manual, constant tension is applied to the cam chain by the hydraulically actuated cam chain roller — no periodic adjustment is necessary. As long as the engine has adequate oil pressure and the tensioner components are in good condition, the system self-adjusts.
Should I replace the cam chain at the same time?
If you're replacing the tensioner components, the cam chain itself is probably stretched too. A worn chain combined with new rollers won't solve a timing issue. We recommend installing a new cam chain at the same time.
You Might Also Need
Last updated: March 2026
