Honda ST1300 Clutch Problems (Troubleshooting the Issues!)

Honda ST1300 clutch problems include clutch slipping, clutch engagement issues, and Clutch Slave Cylinder Issues.

Symptoms include difficulty accelerating, gear changes, and strange noises.

Recognizing symptoms like low resistance on the clutch lever, fluid level drops, and difficulty shifting gears is crucial for identifying clutch slave cylinder issues.

The Honda ST1300 clutch fails to engage as the bearings degrade over time.

Honda ST1300 Clutch Slipping

A worn or poorly adjusted clutch can cause ‘clutch slipping’ in Honda ST1300 which reduces gas mileage.


The clutch slipping was observed after the engine warmed up but operated correctly when cold.

A slipping clutch on the Honda ST1300 leads to difficulty accelerating, changing gears, and going uphill.

Strange noises like growls or squeals may indicate a clutch problem.

If the engine revs higher than usual when the lever is released, this may indicate slippage.

Troubleshooting Tips

Our experts suggest avoiding oils with friction modifiers.

Inspect clutch fluid for water, and execute a thorough hydraulic system flush. Clean master and slave cylinders.

Perform a complete hydraulic system flush. Change the brake fluid on the Honda ST1300.

Regular fluid changes and steering clear of oils with friction modifiers are crucial for optimal clutch performance.

Ensure you have comprehensive replacement parts, especially when dealing with a bike over 100K miles.

Use tools like die grinders and nylon-bristled wheels for gasket removal.

Seek professional help if the clutch issue persists.

Tip: Replace the OEM clutch plates and springs with Barnett plates and springs to improve clutch engagement and shifting.

Honda ST1300 Clutch Slipping: Torquing

Perform proper torquing of the main hub nut. Have someone stand on the brake pedal with the bike in gear.

The exhaust system and slave cylinders can be left undisturbed during the clutch replacement process, simplifying the task for those concerned about potential complications.

Honda ST1300 Clutch Won’t Engage

The Honda ST1300 clutch won’t engage as the bearings degrade after a while, discuss this with the service provider and get them inspected.

Check the master cylinder for any leakages. A clogged compensator port in the master cylinder might hinder the fluid flow.

Carefully insert a wire brush wire into the compensator port without moving the lever, ensuring fluid doesn’t shoot up.

If the clutch won’t engage, consider a thorough flush of the clutch fluid to eliminate contaminants.

Many riders invest substantial sums in clutch replacements, expecting a smooth, noise-free clutch engagement afterward. However, clutch issues like persistent noise can arise, indicating potential oversights in the clutch replacement process.

Honda ST1300 Clutch Problems

Honda ST1300 Clutch Slave Cylinder Issues

Honda ST1300 might face a clutch slave cylinder issue, below are the symptoms.


  • The clutch lever has little or no resistance (check fluid level).
  • Fluid level drop in the master cylinder (visible in the sight glass).
  • Even if there is no external leak under the bike initially, it could happen later.
  • The clutch functions fine when cold but becomes soft and gears hard to shift when warmed up.

Note: Sometimes people plug the weep-hole with JB Weld as a temporary solution, doing this could damage the engine.

If you take the motorcycle to the Honda dealership, they’ll remove the engine to access the Clutch Slave Cylinder.

Take the bike to a car wash, remove lower belly fairings, and drain the brake fluid from the clutch hydraulic system.

Accessing the Clutch Slave Cylinder

The clutch slave cylinder is tucked away about 6-8 inches above the bike’s bottom, making access to the bolts and hydraulic fittings quite challenging.

This usually happens due to a leaking piston seal allowing brake fluid to escape into the engine casing.

Put the bike on the center stand, protect the fuel tank and fairing, and disconnect the battery. Remove black belly fairing panels, oil filter, and speed sensor. Drain the clutch hydraulic system using a vacuum bleeder.

Shift the bike to the side stand, mark the gear shift linkage position, remove the linkage, and handle the drain hoses.

Loosen the banjo bolt, remove crush washers, and remove three hex-head bolts securing the clutch slave cylinder to the engine case.

Test banjo bolt threading, place a new gasket on the clutch slave cylinder, apply high-temp silicone grease, and install the new clutch slave cylinder with three bolts. Insert crush washers and tighten the banjo bolt assembly.

Reinstall gear shift linkage, drain hoses, oil filter, and black belly fairings. Reconnect the battery, start the bike, test the clutch function, and check for leaks.

Honda ST1300 Clutch Maintenance Tips

Check the clutch fluid regularly and replace it if needed.

A thorough flush helps eliminate contaminants that hinder the clutch’s performance.

Try a DIY solution by removing the clutch master cylinder from the handlebar, and holding it upright while pumping the lever to check for pressure build-up.

If you detect slight pressure, there may be air in the system.

Carefully remove the master cylinder cap, ensuring no brake fluid spills on plastic parts.

Pump the lever slowly, observing for small bubbles indicating air release.

Maintain fluid levels with DOT4 brake fluid. If the clutch issues persist, consult a professional for a comprehensive solution.

Can I ride my Honda ST1300 with a slipping clutch?

Yes, but it’s not advisable. Continuing to ride with a slipping clutch can lead to further damage.

How often should I change the Clutch Fluid?

Regularly check your clutch fluid for any discoloration or contamination. Change it as recommended in your motorcycle’s service manual.

Are there any preventive measures to avoid clutch slipping?

Opt for oil without friction modifiers, inspect the clutch fluid for water, and perform regular hydraulic system flushes to prevent clutch slipping in Honda ST1300.

Can I replace the clutch components myself?

If you have mechanical expertise, you can attempt clutch replacement. However, consulting the service manual and seeking advice from experienced riders is recommended.

Is clutch slipping covered under warranty for low-mileage bikes?

In many cases, yes. If you’re experiencing clutch slipping on a low-mileage Honda ST1300, consult your dealer and assert your warranty rights.

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