1988-1992 Suzuki LT230E/EJ/EK/EL/EM/EN QuadRunner 230 Service Manual

Detailed repair and maintenance procedures for your Suzuki LT230E QuadRunner, covering engine, chassis, and electrical systems. Includes diagrams and part numbers. Ref: 99500-42075-01E

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Document Details

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Document Number / Seller:
29961 / George Taylor
File Size:
109.41 MB
File Type:
PDF
Language:
English
Printable:
Yes
Category:
ATV
Last updated / verified
Jun 9, 2025

Models Covered & Key Technical Specifications

SUZUKI LT230E / LT230EJ / LT230EK / LT230EL / LT230EM / LT230EN (99500-42075-01E) - 1988-1992 Consolidated Resource | ATV QuadRunner. Certified Fastening Values: 20 – 25 N·m controls the drain plug tightening torque. General Threaded Fastener Data: 11 - 9 mm governs the front wheel toe-in specification. Defined System Fill: 9.5 L (2.4 US/Imp gal) is specified as the fuel tank capacity. Key Power Framework: 1855 mm (73.0 in) is the overall length. Verified Throughput Data: 229 cm³ mapping defines the engine displacement. Factory Output Density: 172 kg (379 lbs) benchmarks establishes the dry mass.

Professional Workshop Service Manual & Technical Specifications

In-Depth Operations Installation Manual: ATV Suzuki LT230E LT230EK LT230EL LT230EM LT230EN QuadRunner 230 Manual - Maintenance, Troubleshooting & Diagnostics Repair-Index

Reference-Category: Suzuki LT230E / LT230EJ / LT230EK / LT230EL / LT230EM / LT230EN (99500-42075-01E) // Reference-Category: ATV / QuadRunner Logic // Reference-Category: Maintenance, Troubleshooting & Diagnostics.

Performance-Element Baseline Calibration-Spec
Overall Length 1855 mm (73.0 in) 1855 mm (73.0 in)
Overall width 1060 mm (41.7 in) 1060 mm (41.7 in)
Overall height 1125 mm (44.3 in) 1125 mm (44.3 in)
Wheelbase 1130 mm (44.5 in) 1130 mm (44.5 in)
Front track 810 mm (31.9 in) 810 mm (31.9 in)
Rear track 800 mm (31.5 in) 800 mm (31.5 in)
Ground clearance 125 mm (4.9 in) 125 mm (4.9 in)
Seat height 800 mm (31.5 in) 800 mm (31.5 in)
Dry mass 172 kg (379 lbs) 172 kg (379 lbs)
Engine Type Four-stroke, air-cooled, OHC, TDCC Four-stroke, air-cooled, OHC, TDCC
Number of cylinders 1 1
Bore 66.0 mm (2.598 in) 66.0 mm (2.598 in)
Stroke 67.0 mm (2.638 in) 67.0 mm (2.638 in)
Piston displacement 229 cm³ (14.0 cu, in) 229 cm³ (14.0 cu, in)
Compression ratio 9.0 : 1 9.0 : 1
Carburetor MIKUNI VM24SS, single MIKUNI VM24SS, single
Air cleaner Polyurethane foam element Polyurethane foam element
Starter system Electric and recoil Electric and recoil
Transmission Wet multi-plate type, automatic, centrifugal type Wet multi-plate type, automatic, centrifugal type
Gearshift pattern, Forward 5-forward constant mesh, 1-reverse 5-forward constant mesh, 1-reverse
Primary reduction 3.56 (69/22) 3.56 (69/22)
Final reduction 3.727 (41/11) 3.727 (41/11)
Gear ratios, Low 3.083 (37/12) 3.083 (37/12)
2nd 1.933 (29/15) 1.933 (29/15)
3rd 1.444 (26/18) 1.444 (26/18)
4th 1.095 (23/21) 1.095 (23/21)
Top 0.913 (21/23) 0.913 (21/23)
Reverse 2.833 (29/12 x 34/29) 2.833 (29/12 x 34/29)
Drive chain DAIDO D.I.D. 520VS or TAKASAGO RK520SM, 84 links DAIDO D.I.D. 520VS or TAKASAGO RK520SM, 84 links
Ignition type SUZUKI "PEI" SUZUKI "PEI"
Ignition timing 5° B.T.D.C. below 1 800 r/min 5° B.T.D.C. below 1 800 r/min
30.5° B.T.D.C. above 3 800 r/min 30.5° B.T.D.C. above 3 800 r/min
Spark plug NGK D7EA, NIPPON DENSO X22ES-U, or CHAMPION RA8YC NGK D7EA, NIPPON DENSO X22ES-U, or CHAMPION RA8YC
NGK CR7ES, NIPPON DENSO X22ESR-U, or CHAMPION RA8YC – for Canada NGK CR7ES, NIPPON DENSO X22ESR-U, or CHAMPION RA8YC – for Canada
Battery 12V 43.2 kC (12 Ah)/10 HR 12V 43.2 kC (12 Ah)/10 HR
Headlight 12V 45/45W 12V 45/45W
Taillight 12V 5W 12V 5W
Reverse indicator light 12V 2W 12V 2W
Neutral indicator light 12V 2W 12V 2W
Fuse 18A 18A
Front suspension Independent, double wishbone, oil damped, spring pre-load 5-way adjustable Independent, double wishbone, oil damped, spring pre-load 5-way adjustable
Rear suspension Swingarm, oil damped, spring preload fully adjustable Swingarm, oil damped, spring preload fully adjustable
Steering angle Inside 35° Inside 35°
Outside 25° Outside 25°
Caster 6° ±1° 6° ±1°
Trail 37 mm (1.4 in) 37 mm (1.4 in)
Turning radius 2.5 m (8.2 ft) 2.5 m (8.2 ft)
Front brake Disc brake, twin, hydraulically operated Disc brake, twin, hydraulically operated
Rear brake Disc brake, hydraulically operated Disc brake, hydraulically operated
Front tire size AT 21 x 7 – 10 AT 21 x 7 – 10
Rear tire size AT 22 x 11 – 9 AT 22 x 11 – 9
Fuel tank including reserve 9.5 L (2.4 US/Imp gal) 9.5 L (2.4 US/Imp gal)
Reserve 1.0 L (1.1 US/Imp qt) 1.0 L (1.1 US/Imp qt)
Engine oil Oil change 1 500 ml (1.6/1.3 US/Imp qt) 1 500 ml (1.6/1.3 US/Imp qt)
Filter change 1 700 ml (1.8/1.5 US/Imp qt) 1 700 ml (1.8/1.5 US/Imp qt)

Service sections detail diagnostic procedures and maintenance schedules for the Suzuki QuadRunner 230. Key systems covered include the engine, fuel and lubrication, electrical, and chassis. Technical notes and part diagrams are provided for each component. Analytically requiring updated information, this manual documents torque specifications for engine mounting bolts to ensure proper clamp load consistency.

Engine Components Removal and Reassembly

Procedures for removing and reinstalling engine components are thoroughly outlined, including the cylinder head, camshaft, crankshaft, and transmission. Detailed diagrams illustrate the location and function of each part.

Fuel and Lubrication System

This section covers the fuel and oil systems, including carburetor adjustments, fuel line inspection, and oil change procedures. It details proper fluid recommendations and filter replacement steps.

Electrical System

Comprehensive coverage of the charging system, ignition system, starter system, lamps, switches, and battery. Includes wiring diagrams, inspection procedures, and troubleshooting tips for electrical issues.

Chassis and Suspension

Documents maintenance and repair for the front and rear wheels, brakes, steering, and suspension systems. Includes tire pressure specifications, brake pad replacement, and alignment procedures.

FAQ

Confirm the **recommended** diagnostic procedures for the ignition system? keyboard_arrow_down

1200 Ω ± 20% resistance is the specified range for the pulser coil.

What tools are **calibrated** for fluid capacity requirements? keyboard_arrow_down

1 500 ml (1.6/1.3 US/Imp qt) is the engine oil capacity for a standard oil change.

Identify the **applicable** component identification for the brake fluid? keyboard_arrow_down

DOT3 or DOT4 is the specified classification for brake fluid used in the U.S. model.

Customer Reviews

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Reviews (5)

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This manual has everything you need. The detailed diagrams are a lifesaver!
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The step-by-step instructions make repairs simple. Great resource!
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This manual covers all aspects of the LT230E. Navigation is a breeze!
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The maintenance schedules are very helpful. Customer support was also fantastic!
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The download process was smooth, and the support team responded quickly to my questions. Highly recommend!