
Throttle & Hum is a premier family-owned small engine repair service located in Grand Ridge, IL — where someone always meets you at the door.
Our Stihl Masterwrench certified technicians provide Gold Elite Stihl dealer service to assure optimal performance and the longest life of all your outdoor power equipment. We're your neighbors, and we treat every machine like it's our own.
Stop by today — we'd love to meet you, show you what's in stock, and make sure your equipment is running at its best.


Expert diagnostics and repair for chainsaws, trimmers, blowers, and all small engine equipment. Fast turnaround with quality parts.

Seasonal tune-ups, blade replacement, carburetor cleaning, and full service to keep your mower running strong all season.

Large and small equipment rental is now available. From Lawn mowers, Tree Trimmers, Tractors, Trailers and more.

Sales and service for homeowner and professional-grade equipment — from garden tools to full field construction crew gear.

Keep your crew's equipment fleet in top shape. We service and maintain commercial and professional outdoor power equipment fleets.

As a Gold Elite Stihl dealer with Masterwrench-certified technicians, we provide the highest level of factory-authorized service.
We offer a wide variety of homeowner and professional-use landscaping equipment ranging from gardening and landscaping to fleet management and field construction crews.
We carry the full lineup — in stock, hands-on, ready to demo. Come see the difference a Gold Elite dealer makes.
Trust Throttle & Hum for efficient, reliable, and exceptional service for
all your small engine and equipment maintenance needs. Our certified team is here to help you find the right tool for every job.
Yes. Throttle & Hum stocks many standard Stihl parts at our Grand Ridge, IL showroom. For less common or specialty parts, we can typically fulfill custom orders within one week. Call us at 815-249-5575 to confirm availability before your visit.
Yes. Throttle & Hum provides full riding lawn mower service, including seasonal tune-ups. Our tune-up package covers oil changes, blade sharpening, fuel and air filter replacement, tire service, belt inspection, and battery testing. We recommend annual service and advise scheduling in the fall or winter months to avoid the spring rush, when our service department is typically booked two to three weeks out.
Stihl Gold Elite Dealer status is the highest level of Stihl dealer recognition in the United States. Throttle & Hum earned this designation when owner and lead mechanic Tim Koster achieved Stihl's Master Wrench Gold Technician certification — the highest level of factory technical training offered by Stihl USA. This means Throttle & Hum is qualified to perform advanced Stihl equipment repairs, warranty work, and factory-authorized service.
Yes. As an authorized Stihl Gold Elite Dealer, Throttle & Hum can service and perform warranty work on any Stihl equipment, regardless of where it was originally purchased. You do not need to have bought the equipment from us for us to service it.
Yes. Throttle & Hum is an authorized Honda engine service shop. Our technician, Ian, has completed Honda's authorized service technician training and is certified to perform warranty repairs and general service on Honda engines and equipment. We stock the most popular parts needed to complete Honda engine warranty work and get your equipment back in operation.
No, Throttle & Hum does not sell Honda lawn mowers. However, if you are looking for a Honda Motor, we refer to them as "engines" and yes we do sell Honda engines. If you are looking for a Honda engine for a replacement or build project, contact us at 815-249-5575 or visit our showroom at 100 W. Main St., Grand Ridge, IL.
Yes, with some limitations. Throttle & Hum services the small engine side of generators and can handle minor electrical issues. However, we do not take on extensive generator electrical repairs. If you are unsure whether your generator repair falls within our scope, call us at 815-249-5575 and we can advise before you bring it in.
Yes. Stihl manufactures a wide range of residential and commercial lawn mowers, including gas-powered and battery-powered zero-turn mowers as well as push mowers. Throttle & Hum, as your small town Stihl dealership - where someone always meets you at the door, can help you select the machine that best suits your lawn care routine. Call to get a list of in-stock lawnmower models and to arrange an in-person demo at at our Grand Ridge, IL location.
Repair turnaround time depends on the season. During the off-season (fall and winter), most small engine repairs are completed in under one week. During the busy spring and summer season, a two-week turnaround is typical. To avoid delays, we recommend bringing equipment in during fall or winter months.
Yes. For a $75 priority fee, per piece of equipment, Throttle & Hum will move your service item to the top of the queue. Contact us at 815-249-5575 to request expedited service.
Throttle & Hum charges $118 per hour for labor, plus the cost of any replacement parts. For Stihl equipment, our technicians' deep expertise typically means most repairs are completed within one hour. For non-Stihl brands, diagnosis and repair may take slightly longer due to differences in machine familiarity and function.
Diagnostic fees at Throttle & Hum are $60 for riding lawn mowers and $40 for all other small engine equipment. The diagnostic fee includes an inspection and a written repair quote. If you choose to proceed with the repair, the diagnostic fee is applied toward the total service cost.
If Throttle & Hum determines your Stihl equipment is not economically worth repairing and you choose to purchase a replacement Stihl unit from us, we will waive the $40 diagnostic fee. We want to make sure you get the most value whether that means a repair or a new piece of equipment.
No. Throttle & Hum does not currently accept trade-ins on used equipment. For questions about purchasing new equipment, visit our showroom at 100 W. Main St., Grand Ridge, IL or call 815-249-5575.

100 W. Main St., Grand Ridge, IL 61325 | 815-249-5575 | [email protected]
© 2026 Throttle & Hum. All rights reserved.