Massimo Gunner 250: Battery, Parts, Engine, Accessories, Oil Filter, Oil Capacity, Problems, Transmission, and Specs-Guide

Massimo Gunner 250: Battery, Parts, Engine, Accessories, Oil Filter, Oil Capacity, Problems, Transmission, and Specs-Guide

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The Massimo Gunner 250 is a fun side-by-side with a 250cc single-cylinder engine, producing 13 horsepower for light work and trail rides. Priced at $4,500–$5,000, it offers selectable 2WD/4WD, a 500-pound towing capacity, and a manual dump bed. Made by Massimo Motor Sports, it competes with the Coleman KT250 ($4,000) and Hisun Sector 250 ($4,200).

It has an 8-inch ground clearance, 24-inch tires, and standard extras like a 2000-pound winch. The liquid-cooled EFI engine runs reliably, and the CVT transmission shifts smoothly. This guide covers battery, parts, engine details, accessories, oil filter, oil capacity, problems, transmission, and specifications, helping owners keep it running well, if checked every 500 miles.

What Are the Specifications of the Massimo Gunner 250?

What Are the Specifications of the Massimo Gunner 250?

The Massimo Gunner 250 specifications allow light work and trail fun:

  1. Size: 95 x 50 x 65 inches, making it compact.
  2. Ground Clearance: 8 inches, good for light trails.
  3. Load Capacity: 400 pounds, holding two people and cargo.
  4. Fuel Tank: 3.17 gallons, giving a 60–75-mile range.
  5. Seat Height: 13 inches, easy to climb into.
  6. Weight: 850 pounds, balancing control.
  7. Tires: 24×8-12 front, 24×10-12 rear, 10 PSI.
  8. Brakes: Hydraulic disc, front and rear.
  9. Suspension: Double A-arms, front and rear, 6-inch travel.
  10. Top Speed: 35–40 mph, dropping to 25 mph on rough terrain.

These specs are similar to the Hisun Sector 250, allowing shared parts. The 250cc engine handles small jobs, if cared for every 500 miles.

What Is the Battery of the Massimo Gunner 250?

What Is the Battery of the Massimo Gunner 250?

The Massimo Gunner 250 uses a 12V-12Ah sealed lead-acid battery, AGM type, for starting and lights. Part number YTX14-BS or CTX14-BS fits, with 200 cold cranking amps. It costs $40–$60 from Amazon or Tractor Supply, located under the seat.

Replace by turning off the key, removing the seat, unclipping straps, and disconnecting the black cable first, then red. Clean the tray, install a new battery, connect red first, then black, tightening to 5 ft-lbs. Charge at 1 amp for 12 hours if low, using a $20 charger. Check voltage monthly at 12.6V, improving reliability, if cared for every 500 miles.

What Are the Common Problems with the Massimo Gunner 250 Battery?

The Massimo Gunner 250 battery has five common problems:

  1. Slow Crank: Sulfation reduces power.
  2. No Power: Blown circuit breaker cuts electricity.
  3. Cold Failure: Weak charge in freezing weather.
  4. Corrosion: Terminals rust, weakening connection.
  5. ECU Misfires: Low voltage affects EFI.

These need Hisun Sector 250-shared parts like batteries ($50). Care is like Coleman KT250 reliability.

How Can Owners Fix Battery Problems in the Massimo Gunner 250?

Owners fix Massimo Gunner 250 battery problems with five steps:

  1. Fix Slow Crank: Charge overnight at 1 amp ($0).
  2. Replace Breaker: Swap $5 breaker under dash.
  3. Boost Cold Starts: Upgrade to lithium battery ($80).
  4. Clean Corrosion: Brush terminals quarterly ($5).
  5. Fix Misfires: Test voltage monthly, replacing battery ($50).

These use Bennche Cowboy 250-shared parts, keeping it reliable, if done often.

What Is the Engine of the Massimo Gunner 250?

What Is the Engine of the Massimo Gunner 250?

The Massimo Gunner 250 has a 250cc single-cylinder, four-stroke, SOHC engine, making 13 horsepower at 7000 RPM. The 65mm x 75mm bore and stroke and 9.5:1 compression ratio help 500-pound towing. The liquid-cooled EFI system keeps it cool, giving 13 ft-lbs torque at 5500 RPM.

It reaches 35–40 mph, slowing to 25 mph on hills. It meets EPA rules, cutting emissions. This is like the Axis 250, staying reliable, if checked every 500 miles.

What Are the Features of the Massimo Gunner 250 Engine?

What Are the Features of the Massimo Gunner 250 Engine?

The Massimo Gunner 250 engine gives 13 horsepower with a 250cc single-cylinder, four-stroke build. Key features include:

  1. Single-Cylinder: Makes 13 horsepower, great for light tasks.
  2. Four-Stroke Cycle: Follows EPA rules, lowering emissions.
  3. Liquid Cooling: Stops overheating, keeping power steady.
  4. EFI System: Gives precise fuel, boosting efficiency.
  5. Compression Ratio: 9.5:1, helping reach 40 mph.
  6. CDI Ignition: Keeps timing steady on all terrains.
  7. SOHC: Improves efficiency, adding durability.
  8. Oil Capacity: 1.3–1.4 quarts of 10W-40, keeping parts lubricated.
  9. Fuel System: 32mm throttle body helps EFI.
  10. Exhaust: Catalytic converter cuts emissions, resists rust.

These features are similar to the Hisun Sector 250, giving steady performance, if cared for regularly.

What Are the Common Problems with the Massimo Gunner 250 Engine?

What Are the Common Problems with the Massimo Gunner 250 Engine?

The Massimo Gunner 250 engine has ten common problems, needing regular care:

  1. Overheating: Dirty radiator fins raise temperatures.
  2. Injector Clogs: Bad fuel causes starting issues.
  3. Vibration: Single-cylinder shakes at high RPMs.
  4. Oil Leaks: Seals wear out, losing oil after 1000 miles.
  5. Weak Power: 13-horsepower struggles with heavy loads.
  6. Starter Issues: CDI fails in cold weather, stopping starts.
  7. Piston Wear: 65mm piston wears without oil changes.
  8. Fuel Pump Trouble: Ethanol damages fuel flow.
  9. Loud Exhaust: Muffler silencer breaks, making noise.
  10. Slow Throttle: EFI lags, slowing acceleration.

These need Hisun Sector 250-shared parts like injectors ($30). Care is like Coleman KT250 reliability.

How Can Owners Fix Engine Problems in the Massimo Gunner 250?

Owners fix Massimo Gunner 250 engine problems with ten steps:

  1. Stop Overheating: Clean radiator fins monthly ($10).
  2. Clean Fuel System: Replace fuel filter every 500 miles ($8).
  3. Reduce Vibration: Tighten mounts every 500 miles with pads ($15).
  4. Fix Oil Leaks: Replace seals every 1000 miles ($10).
  5. Boost Power: Tune EFI yearly for 13 horsepower ($20).
  6. Fix Starter: Check CDI every 1000 miles, replacing ($25).
  7. Protect Piston: Change oil every 500 miles with 10W-40 ($10).
  8. Replace Fuel Pump: Clean tank yearly, replacing pump ($30).
  9. Quiet Exhaust: Check muffler every 500 miles ($80).
  10. Fix Throttle Lag: Clean injector every 1000 miles ($10).

These use Bennche Cowboy 250-shared parts, keeping it reliable, if done often.

What Are the Parts of the Massimo Gunner 250?

What Are the Parts of the Massimo Gunner 250?

The Massimo Gunner 250 has ten main part categories:

  1. Piston Kit: Works with 250cc engine, $40.
  2. CVT Belt: Keeps transmission smooth, $30.
  3. Brake Pads: Stops vehicle, $15.
  4. Oil Filter: Protects engine, $8–$10.
  5. Fuel Filter: Stops injector clogs, $8.
  6. Tires: 24×8-12 front, $100 each.
  7. Battery: 12V, 12Ah, powers systems, $40.
  8. Winch Cable: Works with 2000-pound winch, $20.
  9. A-Arms: Improve suspension, $80 per pair.
  10. Ignition Coil: Sparks engine, $25.

These are like Hisun Sector 250 parts, saving money, if bought from massimomotor.com or Amazon.

Where Can Owners Find the Massimo Gunner 250 Parts Diagram?

The Massimo Gunner 250 parts diagram is found at Massimo Motor Sports or HisunPartsCentral. It shows:

  1. Engine Diagram: Piston (#250ENG001), oil filter mount.
  2. Transmission Diagram: CVT belt, clutch weights (#30).
  3. Chassis Diagram: A-arms, shock mounts.
  4. Electrical Diagram: Battery, CDI connections.

Download from manualslib.com, similar to Coleman KT250, to help with fixes, if kept handy.

What Is the Oil Filter for the Massimo Gunner 250?

The Massimo Gunner 250 uses a spin-on oil filter with a 10-micron rating, part number 503-01156. It costs $8–$10and protects the 250cc engine from dirt. Replace every 500 miles, like the Hisun Sector 250, to keep the engine healthy.

What Is the Oil Filter Cross-Reference for the Massimo Gunner 250?

The Massimo Gunner 250 oil filter matches five other filters:

  1. Fram PH6017A: Fits 250cc engine, $8–$10.
  2. K&N HP-7009: Allows high flow, $9–$12.
  3. WIX 51356: Fits thread size, $8–$10.
  4. Purolator PL10241: Keeps oil flowing, $7–$9.
  5. Mobil 1 M1-110A: Handles heat, $10–$12.

These are like Bennche Cowboy 250, keeping engine oil clean, if changed every 500 miles.

What Is the Oil Capacity of the Massimo Gunner 250?

The Massimo Gunner 250 holds 1.3–1.4 quarts of 10W-40 synthetic blend oil for its 250cc engine. This lubricates the 65mm piston, helping 13 horsepower. Change oil every 500 miles, like the Hisun Sector 250, to keep the engine strong.

What Are the Accessories for the Massimo Gunner 250?

What Are the Accessories for the Massimo Gunner 250?

The Massimo Gunner 250 works with ten accessories for better use:

  1. Winch: 2000-pound pull, $120, for stuck vehicles.
  2. Windshield: Half plastic, $70, blocks debris.
  3. Roof: Cloth, $120, keeps out rain.
  4. Bumper: Steel front, $100, takes hits.
  5. Hitch: 1.5-inch, $30, hooks trailers.
  6. Bed Rack: Adds 200-pound capacity, $80.
  7. LEDs: Pair, $25, brightens paths.
  8. Tires: 24×8-12 knobby, $250 for set, for grip.
  9. Skid Plates: Guards bottom, $80.
  10. Better Exhaust: Adds power, $80.

These are like Coleman KT250, making it more useful, if added correctly.

What Are the Common Problems with Massimo Gunner 250 Accessories?

Massimo Gunner 250 accessories have ten problems:

  1. Winch Stops: Cables break, weakening pull.
  2. Windshield Cracks: Rocks cause breaks, blocking view.
  3. Roof Shakes: Loose bolts make noise.
  4. Bumper Dents: Hits damage steel, losing protection.
  5. Hitch Wear: Wears under heavy towing.
  6. Bed Rack Breaks: Welds fail under heavy loads.
  7. LED Failure: Bulbs burn out, dimming light.
  8. Tire Wear: New tires wear unevenly without alignment.
  9. Skid Plate Dents: Hits damage plates, losing protection.
  10. Exhaust Noise: New exhaust gets too loud.

These need Hisun Sector 250-shared parts, like Bennche Cowboy 250 reliability, if fixed often.

How Can Owners Keep Accessories Working on the Massimo Gunner 250?

Owners keep Massimo Gunner 250 accessories working with ten steps:

  1. Check Winch: Look at cables every 500 miles, replacing ($20).
  2. Clean Windshield: Use anti-fog cleaner weekly ($5).
  3. Tighten Roof: Fix bolts every 500 miles ($5).
  4. Check Bumper: Inspect for dents every 500 miles ($10).
  5. Fix Hitch: Check wear yearly ($10).
  6. Replace Bed Rack: Swap broken rack yearly ($80).
  7. Replace LEDs: Change bulbs every 2 years ($15).
  8. Rotate Tires: Move tires every 1000 miles to save wear ($10).
  9. Check Skid Plates: Look for dents every 500 miles ($20).
  10. Check Exhaust: Look at silencer yearly ($80).

These use Gunner 250-shared parts, keeping things reliable, if done regularly.

What Are the Common Problems with the Massimo Gunner 250?

The Massimo Gunner 250 has ten common problems, needing regular care:

  1. Electrical Shorts: Rusty wires cause dim lights or no start.
  2. Injector Clogs: Bad fuel stops engine.
  3. Transmission Grinding: Low fluid causes rough shifts.
  4. Overheating: Dirty radiator raises engine heat.
  5. Brake Fade: Worn pads weaken stopping.
  6. Vibration: Loose mounts shake at high RPMs.
  7. Fuel Pump Failure: Ethanol clogs pump, cutting flow.
  8. Slow Speed: Belt slips, reducing power.
  9. Suspension Squeaks: Bushings squeak without grease.
  10. Oil Pressure Drop: Dirty filter lowers pressure.

These need Coleman KT250-shared parts like belts ($30). Care is like Hisun Sector 250 reliability.

How Can Owners Fix Problems in the Massimo Gunner 250?

Owners fix Massimo Gunner 250 problems with ten steps:

  1. Fix Electrical Shorts: Clean wires with brush ($5), replace ($60).
  2. Clean Injector: Use $20 kit every 1000 miles.
  3. Stop Grinding: Add 0.8 quarts Dexron III ATF ($10).
  4. Stop Overheating: Clean radiator fins ($0), add fan switch ($15).
  5. Fix Brakes: Replace pads ($15), add fluid ($5).
  6. Reduce Vibration: Tighten mounts at 35 ft-lbs ($0).
  7. Replace Fuel Pump: Add $8 filter, check 5 PSI.
  8. Boost Speed: Replace belt ($30), clean pulleys.
  9. Stop Squeaks: Grease bushings every 500 miles ($5).
  10. Fix Oil Pressure: Change filter every 500 miles ($8).

These use Bennche Cowboy 250-shared parts, keeping it reliable, if done often.

What Is the Transmission System of the Massimo Gunner 250?

What Is the Transmission System of the Massimo Gunner 250?

The Massimo Gunner 250 has a CVT transmission with a shaft-driven system and wet clutch. It has low, high, neutral, and reverse settings, sending 13 horsepower to 24-inch tires. The selectable 2WD/4WD boosts grip.

It reaches 35–40 mph and pulls 500 pounds, held steady by 8-inch clearance. The clutch kit keeps shifts smooth, and the shaft drive needs less care. This is like the Hisun Sector 250, working well, if checked every 500 miles.

What Are the Common Transmission Problems in the Massimo Gunner 250?

The Massimo Gunner 250 transmission has ten problems:

  1. CVT Belt Slips: Slips under 500-pound loads, losing power.
  2. Shaft Wear: Wears out, cutting power.
  3. Clutch Wear: Wears, making shifts rough.
  4. Overheating: Heats up from low fluid levels.
  5. Fluid Leaks: Case leaks, dropping fluid.
  6. Slow Shifting: Worn parts delay shifts.
  7. Grinding Noise: Shaft drive grinds, showing wear.
  8. Power Loss: Doesn’t send full power.
  9. Vibration: Drivetrain shakes, reducing comfort.
  10. Belt Wear: CVT belt wears out without care.

These need Bennche Cowboy 250-shared parts like belts ($30). Care is like Axis 250 reliability.

How Can Owners Keep the Transmission of the Massimo Gunner 250 Working?

Owners keep the Massimo Gunner 250 transmission working with ten steps:

  1. Check CVT Belt: Look every 500 miles, replacing worn belts ($30).
  2. Add Fluid: Use Dexron III ATF monthly ($10).
  3. Replace Clutch Kit: Put in new kit every 2000 miles ($50).
  4. Check Fluid Levels: Look at ATF monthly ($8).
  5. Fix Leaks: Replace seals every 1500 miles ($10).
  6. Fix Shifting: Tune CVT every 1000 miles per manual.
  7. Stop Grinding Noise: Check shaft drive every 500 miles ($40).
  8. Boost Power: Clean transmission yearly.
  9. Reduce Vibration: Tighten parts every 500 miles ($5).
  10. Fix Belt Tension: Change tension every 1000 miles.

These use Hisun Sector 250-shared parts, keeping it reliable, if towing often.

What Are the Electrical Parts of the Massimo Gunner 250?

The Massimo Gunner 250 electrical system has ten parts:

  1. Battery: 12V, 12Ah, powers ignition and lights.
  2. Starter Motor: Starts engine, using 200 amps.
  3. Alternator: Charges battery, giving 12 amps.
  4. Wiring: Connects parts, helping power flow.
  5. Ignition Switch: Turns system on, starting engine.
  6. LED Headlights: Light up paths.
  7. Circuit Breaker: Stops circuit overloads.
  8. Sensors: Watch engine performance.
  9. Digital Dash: Shows speed, fuel, and diagnostics.
  10. Winch Switch: Runs 2000-pound winch.

These are like Bennche Cowboy 250, staying reliable, if checked every 500 miles.

What Are the Common Electrical Problems in the Massimo Gunner 250?

The Massimo Gunner 250 electrical system has ten problems:

  1. Battery Failure: Stops working after 2 years, preventing starts.
  2. Starter Issues: Motor fails in cold weather.
  3. Wiring Breaks: Wires wear, causing shorts.
  4. Alternator Failure: Stops charging, draining battery.
  5. Headlight Failure: LED bulbs burn out, dimming light.
  6. Breaker Trips: Trips from too many accessories.
  7. Sensor Issues: Give wrong readings, hurting performance.
  8. Dash Problems: Digital display stops working.
  9. Winch Switch Failure: Stops winch from working.
  10. Ignition Switch Failure: Stops starts, needing replacement.

These need Hisun Sector 250-shared parts, like Axis 250 reliability.

How Can Owners Keep the Electrical System of the Massimo Gunner 250 Working?

Owners keep the electrical system working with ten steps:

  1. Check Battery: Test every 500 miles, replacing every 2 years ($40).
  2. Look at Starter: Test yearly, replacing ($40).
  3. Check Wiring: Look every 500 miles for breaks ($5).
  4. Test Alternator: Check output weekly, giving 12 amps.
  5. Replace Headlights: Change LED bulbs every 2 years ($15).
  6. Check Breakers: Look at breaker box every 500 miles, replacing ($5).
  7. Test Sensors: Check readings yearly ($10).
  8. Fix Dash: Check connections yearly ($10).
  9. Check Winch Switch: Test every 500 miles, replacing ($20).
  10. Look at Ignition Switch: Test yearly, replacing ($10).

These use Gunner 250-shared parts, keeping things reliable, if checked often.

What Are the Suspension Features of the Massimo Gunner 250?

The Massimo Gunner 250 suspension has ten features:

  1. Double A-Arms: Front and rear, changeable for load.
  2. Shock Absorbers: Soak up bumps from rough terrain.
  3. Clearance: 8 inches to clear obstacles.
  4. Rust Protection: Coating fights corrosion in wet areas.
  5. Tire Fit: Works with 24-inch tires for grip.
  6. Load Capacity: Holds 400-pound loads.
  7. Towing Capacity: Pulls 500 pounds without strain.
  8. Durability: Handles light trails, like Hisun models.
  9. Stability: Stays steady on hills.
  10. Changeability: Shocks change for rider weight.

These give stability, like Coleman KT250, if checked every 500 miles.

What Are the Common Suspension Problems in the Massimo Gunner 250?

The Massimo Gunner 250 suspension has ten problems:

  1. Shock Wear: Wears under heavy loads, reducing comfort.
  2. Alignment Issues: A-arms shift, wearing tires.
  3. Rust: Coating wears off, causing rust.
  4. Squeaking: Bushings squeak without grease.
  5. Lower Clearance: Suspension sags, cutting 8-inch clearance.
  6. Change Failure: Shocks won’t lock, causing uneven rides.
  7. Tire Stress: Bigger tires strain suspension.
  8. Towing Wear: Wears when pulling 500 pounds.
  9. Part Wear: Parts wear on rough terrain.
  10. Stability Issues: Wobbles on steep hills.

These need Bennche Cowboy 250-shared parts, like Hisun Sector 250 reliability.

How Can Owners Keep the Suspension of the Massimo Gunner 250 Working?

Owners keep the suspension working with ten steps:

  1. Check Shocks: Look every 500 miles, replacing leaks ($50).
  2. Fix Alignment: Realign A-arms every 1000 miles ($10).
  3. Add Coating: Reapply coating yearly ($10).
  4. Grease Bushings: Grease every 500 miles ($5).
  5. Check Clearance: Measure weekly to confirm 8 inches.
  6. Change Shocks: Test every 500 miles for steadiness.
  7. Check Tires: Make sure tire size fits to avoid stress.
  8. Limit Towing: Keep towing under 400 pounds to reduce wear.
  9. Replace Parts: Check every 500 miles, replacing ($50).
  10. Test Stability: Check on hills every 500 miles.

These use Gunner 250-shared parts, keeping things reliable, if done often.

How Does the Massimo Gunner 250 Compare to Other Massimo Models?

The Massimo Gunner 250 offers light power compared to five Massimo models:

  1. T-Boss 410: 352cc engine, 25.5 horsepower, $7,999, shares oil filters.
  2. Buck 450: 352cc engine, 25 horsepower, $7,999, shares brake pads.
  3. T-Boss 560: 493cc engine, 33 horsepower, $9,999, shares CVT belts.
  4. MSU 850: 800cc engine, 59 horsepower, $9,999, shares fuel filters.
  5. Warrior 1000 MXD: 1000cc engine, 85 horsepower, $16,999, shares winch cables.

The Gunner 250 is lighter than T-Boss 410, good for small trails.

How Does the Massimo Gunner 250 Compare to Other UTV Brands?

The Massimo Gunner 250 compares to five other UTVs:

  1. Coleman KT250: 250cc, 13 horsepower, $4,000, shares brake pads.
  2. Hisun Sector 250: 250cc, 13 horsepower, $4,200, shares CVT belts.
  3. Bennche Cowboy 250: 250cc, 13 horsepower, $4,100, shares fuel filters.
  4. Axis 250: 250cc, 12 horsepower, $3,900, shares oil filters.
  5. Kawasaki Mule SX: 401cc, 21 horsepower, $8,199, shares air filters.

The Gunner 250 gives good value, like Hisun Sector 250, if thinking on price.

FeatureMassimo Gunner 250Hisun Sector 250Coleman KT250
Horsepower131313
Weight850 lbs820 lbs800 lbs
Price$4,749$4,200$4,000
ExtrasWinchBasicBasic

What Are the Common Overheating Problems in the Massimo Gunner 250?

The Massimo Gunner 250 has five overheating problems:

  1. Dirty Radiator Fins: Dirt blocks airflow, raising heat.
  2. Low Coolant: Coolant runs low, cutting cooling.
  3. High RPMs: Long runs build up heat.
  4. Hot Weather: Extreme heat stresses the system.
  5. Heavy Loads: 500-pound towing adds heat.

Clean radiator fins monthly and check coolant every 500 miles, like Coleman KT250, to stop overheating.

How Can Owners Fix Overheating Problems in the Massimo Gunner 250?

Owners fix overheating with five steps:

  1. Clean Radiator Fins: Clear dirt monthly ($10).
  2. Check Coolant: Look weekly, adding more ($8).
  3. Watch RPMs: Avoid long high RPMs.
  4. Reduce Loads: Limit towing to 400 pounds in heat.
  5. Check Temperature: Watch gauges daily in hot weather.

These use Hisun Sector 250-shared parts, keeping it reliable, if done often.