Float
Part cost: $15–$25
Labor (0.5–1 hour at $125/hour): $62.50–$125
Total: $77.50–$150
Needle and SeatPart cost: $20–$30
Labor (0.5–1 hour at $125/hour): $62.50–$125
Total: $82.50–$155
DiaphragmPart cost: $15–$25
Labor (0.5–1 hour at $125/hour): $62.50–$125
Total: $77.50–$150
Accelerator PumpPart cost: $20–$35
Labor (0.5–1 hour at $125/hour): $62.50–$125
Total: $82.50–$160
Choke AssemblyPart cost: $30–$50
Labor (1–1.5 hours at $125/hour): $125–$187.50
Total: $155–$237.50
Idle Mixture ScrewPart cost: $10–$20
Labor (0.25–0.5 hours at $125/hour): $31.25–$62.50
Total: $41.25–$82.50
Throttle PlatePart cost: $20–$40
Labor (0.75–1.25 hours at $125/hour): $93.75–$156.25
Total: $113.75–$196.25
Main JetsPart cost (per set): $15–$25
Labor (0.25–0.5 hours at $125/hour): $31.25–$62.50
Total: $46.25–$87.50
Power ValvePart cost: $20–$35
Labor (0.5–1 hour at $125/hour): $62.50–$125
Total: $82.50–$160
Gaskets and SealsPart cost (set): $10–$20
Labor (0.5–1 hour at $125/hour): $62.50–$125
Total: $72.50–$145
Float
Inspection:Remove the carburetor bowl and visually inspect the float for any cracks or deformities.
Adjustment:Use a float gauge or measuring tool to ensure the proper float height; gently bend the float tab if adjustment is needed.
Replacement:If the float is damaged or excessively worn, replace it to prevent fuel overflow or starvation.
Needle Valve
Cleaning:Remove the needle valve and use a carburetor cleaner to dissolve any varnish or gum deposits.
Visual Check:Inspect the valve tip for wear or grooves; replace if the tip shows signs of deterioration.
Seating Test:Verify the needle seats properly. A worn seat or leaking valve should be exchanged with a new, appropriately sized component.
Jets
Removal:Carefully unscrew the main and pilot jets using an appropriate-sized screwdriver or jet wrench.
Cleaning:Soak the jets in carburetor cleaner, then use compressed air or a fine wire to clear any blockages.
Reinstallation:Ensure the jets are fully seated but do not overtighten to avoid damaging their delicate threads.
Throttle Valve (Butterfly Valve)
Inspection:Check for carbon buildup on the throttle plate and shaft; use a small brush and cleaner to remove residue.
Lubrication:Lightly lubricate the throttle shaft pivot points for smooth operation.
Alignment:Confirm that the throttle valve closes securely and opens freely without binding. Adjust linkage if necessary.
Choke
Cleaning and Lubrication:Remove any dirt from the choke linkage and shaft, then apply a light lubricant to ensure smooth movement.
Adjustment:If it’s a manual choke, adjust cable tension to achieve proper opening and closing. For automatic choke, verify the spring tension and position.
Replacement:Severely worn or defective choke mechanisms should be replaced with the correct part to maintain cold-start performance.
Gaskets
Inspection:Remove old gaskets and examine the surfaces for cracks or warping.
Cleaning:Scrape off old gasket residue and polish the mating surfaces with a fine abrasive pad.
Installation:Install new gaskets, aligning them properly. Tighten fasteners in a cross-pattern to ensure an even seal.
Accelerator Pump
Disassembly:Remove the pump diaphragm and check for tears or wear.
Cleaning:Flush the pump body and passages with carburetor cleaner to ensure fuel flows freely.
Reassembly:Install a new diaphragm and confirm proper stroke by operating the throttle lever.
Venturi
Cleaning:Spray carb cleaner through the venturi openings to remove petrol residue or debris.
Inspection:Look for cracks or signs of corrosion in the venturi. Replace the entire assembly if any significant damage is found.
Alignment:Ensure the venturi is seated properly so air-fuel mix remains consistent.
Carburetor Bowl
Drain and Removal:Carefully remove the bowl to inspect for rust, dirt, or water accumulation.
Thorough Cleaning:Clean the bowl with carburetor cleaner and, if necessary, a small brush. Remove any deposits or varnish.
Reinstallation:Reattach the bowl using a new gasket to prevent leaks, and torque the bowl screws evenly.
What is a Carburetor and what does it do
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Float
Common signs of failure: Engine flooding, irregular fuel level in the carburetor bowl, rough idling, and noticeable fuel leaks.
Float Valve (Needle Valve)
Common signs of failure: Persistent fuel overflow, difficulty in maintaining proper fuel pressure, and sudden engine stalling due to fuel starvation.
Jets
Common signs of failure: Poor throttle response, uneven or weak acceleration, black smoke from the exhaust (rich mixture), and white or light gray deposits on spark plugs (lean mixture).
Choke
Common signs of failure: Hard cold starts, engine stalling when cold, rough idle during warm-up, and excessive fuel consumption.
Throttle Plate
Common signs of failure: Sticky or unresponsive throttle movement, inconsistent idle speed, and hesitation or stumbling upon acceleration.
Accelerator Pump
Common signs of failure: Hesitation or stumbling when pressing the accelerator, lack of immediate throttle response, and poor engine performance under load.
Venturi
Common signs of failure: Reduced air intake efficiency, rough running at higher RPM, decreased power output, and erratic fuel-air mixture.
Gaskets and Seals
Common signs of failure: Fuel or vacuum leaks, noticeable gasoline smell, and inconsistent engine performance or idle fluctuations.
Idle/Mixture Screws
Common signs of failure: Difficulty adjusting idle or mixture, constant surging or unstable idle, and fouled spark plugs due to incorrect fuel mixture.
How It Works
- Get a quote online or set-up a time to have your vehicle looked at.
- Pick time slots that work for you, easily, online.
- We will confirm appointments and send reminders.
- Our mechanics bring everything that is needed to you.
- All you have to do is provided a safe area for the work to be performed.
What we need from you
- A safe place to work on your vehicle
- No working on the side of busy roads
- No working on unstable or steep surfaces.
- We do not perform repairs during severe weather.
- Authorization from a property owner or management.
- Repair work done in a parking lot or at your requires permission.
- We do not do repairs in areas restricted by law.
Common Questions
Service Area
Our primary service area is greater Grand Rapids and includes Comstock Park, East Grand Rapids, Grandville, Kentwood, Walker, and Wyoming
Our secondary service area is provided by our Belding location and includes: Belding, Greenville, Ionia and the sorrounding areas.
Contact us if you have any questions about where we provide services.
