Sullivan, IL — Harley Davidson Specialists(217) 728-7425
CMS Powersports service bay

What We Do

Parts & Service

Small town shop. Small town prices. We work on Harleys — all models, all years — and we do it right.

Repair & Service

Engine Rebuilds & Repair

Top-end, bottom-end, full rebuilds. Primary drives, cam chests, heads — we've torn down and rebuilt every Harley engine configuration. Done right, priced fair.

Electrical Diagnostics

Chasing gremlins in your wiring? We use factory-level diagnostic tools to find the problem fast. No guesswork, no inflated labor bills.

Transmission & Drivetrain

Clutch, primary, transmission — if it's slipping, grinding, or not shifting clean, we'll find it and fix it at a price that won't make you wince.

Suspension & Brakes

Forks, shocks, pads, rotors, calipers. We keep you safe and in control. Proper setup, honest price.

Fuel Systems

Carb rebuilds, fuel injection tuning, fuel pump replacement. Running rich, lean, or not at all — we'll sort it out without the dealership bill.

Exhaust & Pipes

Installation, repair, and custom exhaust work. We'll get your bike sounding exactly how it should.

Routine Maintenance

Oil & Fluid Services

Engine oil, primary fluid, transmission fluid. We use the right stuff for your specific model — and we charge what's fair.

Tires & Wheels

Mounting, balancing, and alignment. We carry a selection of tires and can order what you need. No dealership markup.

Tune-Ups & Inspections

Plugs, filters, cables, throttle body cleaning. Pre-season or post-season — keep your bike ready to ride without paying big-city prices.

Battery & Charging

Battery testing, replacement, and charging system diagnostics. Quick, affordable, and done right.

Parts & Accessories

We stock and source OEM and aftermarket parts for all Harley Davidson models. No middleman markup — just fair prices on the parts you need. Bring us your part number or describe what you need and we'll track it down.

OEM Parts

Factory Harley Davidson parts sourced direct. Right fit, right spec — and you won't pay dealership prices to get them.

Aftermarket Parts

Performance and replacement parts from trusted brands. We'll help you find the right part at the right price.

Custom Build Parts

Planning a custom? We source specialty components, help with fitment, and give you straight advice on what works — no upsell.

Custom Work

Custom Builds

Got a vision for your bike? We'll help you build it. From bolt-on upgrades to full custom work — small shop rates, real craftsmanship. Come in and talk to us about what you want. No pressure, just honest conversation.

Call to Discuss Your Build
SERVICE

Need Service or Parts?

Call us or stop by. Walk-ins welcome. Small town service — we treat you like a neighbor, not a ticket number.

Call Us Now — (217) 728-7425
CMS Powersports

Sullivan's trusted Harley Davidson repair shop. Real mechanics. Real results. No B.S.

Shop Hours

  • Tues – Fri9:00 AM – 6:00 PM
  • SaturdayClosed
  • SundayClosed

Find Us

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