How To Install a Clutch Kit on a 1983 Suzuki RM250 Dirt Bike

How to Install a Clutch Kit on a 1983 Suzuki RM250

Why replace the clutch on a 1983 Suzuki RM250?

The 1983 Suzuki RM250 is a two-stroke motocross machine with a cableoperated, wet multiplate clutch. Over time, aggressive starts, woods riding, sand, or heat can cause clutch symptoms: slipping under acceleration, dragging between shifts, inconsistent lever feel, hard shifting, or a lever that requires excessive travel. Replacing worn friction plates, steels, and springs restores power transfer, crisp engagement, and reliable shift quality exactly what you need for motocross starts and technical trail sections.

Tools & supplies

• Socket set, open-end wrenches, screwdriver set
• Clutch holding tool or strap to prevent basket rotation
• Replacement clutch kit (friction plates, steel drive plates, springs & pressure plate if supplied)
• Fresh engine oil appropriate for a twostroke wet clutch application
• Clean rags, parts tray, mild degreaser
• Small brush for cleaning basket & hub splines
• Feeler gauge or calipers for rough spring comparison (no factory specs required)

Preparing the bike

Work on a flat area and secure the RM250 in a stand so the bike is level and cannot tip. Warm the engine briefly then shut it off warm oil drains easier if you choose to remove any oil. For the 1983 RM250 you don't need to fully drain the crankcase for most clutch servicing, but if you plan to replace oil or the kit instructions call for oil removal, drain to a clean pan first. Disconnect the clutch cable at the lever to eliminate spring tension on disassembly.

Removing the clutch cover and assembly

• Clean the exterior of the clutch cover to prevent dirt entering the case.
• Remove the cover bolts and the clutch cover. Expect some residual oil & small oil pooling.
• Use a clutch holding tool or wrap a soft strap around the clutch basket to keep it from turning while you loosen the pressure plate or hub nut.
• Remove the clutch springs in a star pattern, slowly releasing them a little at a time to avoid cocking the pressure plate.

Disassembly & inspection

With the pressure plate removed, take out the friction plates and steel drive plates in order, laying them out as removed so you remember the sequence. Inspect each component:

• Friction plates look for glazing, thinning, burned or crushed linings, or chipping at the rivets.
• Steel drive plates check for blue discoloration, warping, or heat spots; lay on a flat surface to see any cupping.
• Clutch springs compare free length against new springs; if noticeably shorter or weak-feeling, replace them.
• Clutch basket & hub inspect basket fingers for notching where plates engage; feel the inner hub splines for rounding or burrs that cause engagement chatter.
• Thrust washer & pushrod check for excessive wear, flatness, or pitting; ensure the pushrod moves freely without binding.

Cleaning and minor repairs

Use a mild degreaser and brush to clean the basket, hub, and cover mating surfaces. Lightly deburr small notches with fine files or emery cloth if necessary; deep notching in the basket fingers merits replacement. Clean the clutch cover magnet and remove any metal shavings that accumulated over time.

Preparing new plates

For the 1983 RM250's wet clutch, soak new friction plates in fresh twostroke compatible oil for at least 15-30 minutes before installation. Soaking ensures the linings absorb oil and prevents initial slipping. Lightly wipe excess oil from steel plates they should be lubricated but not dripping.

Reassembly correct plate order & orientation

Reinstall plates in the same alternating order they were removed: friction plate, steel plate, friction plate, etc. On the RM250, friction plates usually fit into the clutch hub splines while steel plates seat into the basket fingers. Make sure each plate fully seats and isn't cocked.

• Once the stack is back in place, fit the pressure plate over the pack.
• Install clutch springs finger-tight in a crisscross pattern, then snug them evenly to compress the pack uniformly.
• If your kit includes a new pressure plate or spring kit, use those parts; they're matched to restore correct feel and pre-load.

Final assembly and cable adjustment

Reinstall the clutch cover with a clean gasket or new sealant as required, snugging bolts progressively to seat the cover. Reconnect the clutch cable and set free play at the lever aim for a small amount of play at the lever tip so the clutch fully engages at rest but isn't overly tight. Check the cable for smooth operation; replace it if you find binding or fraying that could mimic clutch wear.

Hydraulic vs. cable notes

The 1983 RM250 uses a cable clutch, so lever feel and proper cable routing are critical. Stretch or binding in the cable often produces symptoms similar to worn plates inconsistent engagement or excessive lever travel. Inspect cable housings and lubricate or replace the cable if operation isn't smooth.

Oil & break-in

Refill the engine with the recommended twostroke oil mixture or crankcase oil as appropriate for your setup. After reassembly, run the engine briefly in neutral and cycle the clutch with the lever to seat the plates. During the first tanks of fuel ride gently with progressive clutch use avoid fullthrottle launches until the new linings bed in for consistent engagement and peak power transfer.

What to monitor after installation

• Lever feel should be firmer and more consistent with proper free play.
• Throttle response and acceleration off the bottom should improve as slipping stops.
• No unusual noises from the clutch basket or engagement chatter if present, recheck basket notches and hub splines.
• Check oil condition after a short ride for metal particles that could indicate unseen wear.

Why proper installation matters

On a lightweight motocross bike like the 1983 Suzuki RM250, a well-installed clutch directly translates to better starts, cleaner power delivery through corners, and less rider fatigue from trying to manage a slipping or dragging clutch. Attention to plate orientation, soaking friction plates, checking basket and hub condition, and setting cable free play will give the RM250 the predictable engagement it needs for aggressive trail or motocross riding.

Related Shopping Categories

Shop Clutch Kits for a 1983 Suzuki RM250 Dirt Bike.

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Shop Clutch Springs for a 1983 Suzuki RM250 Dirt Bike.

Shop Inner Hubs and Pressure Plates for a 1983 Suzuki RM250 Dirt Bike.

Shop Clutch Covers for a 1983 Suzuki RM250 Dirt Bike.

Disclaimer: This guide is provided for general informational purposes only and is not intended to replace your motorcycle's official owner's manual. Always refer to your manufacturer's documentation for model-specific instructions, torque specifications, safety procedures, and maintenance requirements. If you are unsure or inexperienced, consider seeking assistance from a qualified mechanic or technician.