Make:
JLO (J. Lohner & Co.)
Product Type:
Engine workshop service repair manual
Model Variants Covered:
Single-cylinder: L-99, L-230, L-227, L-295, R-295, L-297, L-300, L-340. Twin-cylinder: LR-340/2, LR-399/2, LR-440/2, LS-600/2.
Production Years Covered:
N/A - not specified for this manual
Engine Configurations:
Single-cylinder and twin-cylinder two-stroke engines
Primary Audience:
DIY enthusiasts and experienced mechanics servicing JLO engines
Secondary Audience:
Owners of vintage snowmobiles, karts, or equipment powered by JLO engines
Comprehensive Repair Procedures:
Step-by-step instructions for engine disassembly, inspection, and reassembly
Troubleshooting Guides:
Diagnostic information for common engine issues
Technical Specifications:
Detailed specs for engine models covered
Wiring Diagrams:
Electrical schematics for ignition and charging systems
Visual Aids:
Hundreds of photos and illustrations
Coverage:
Operating instructions, carburetor, ignition, exhaust, recoil system, timing, and warranty
Manual Type:
Workshop Service Repair Manual
Format:
PDF (digital download)
Delivery Method:
Instant download
Page Count:
N/A - not specified for this manual
Engine Models:
L-99, L-230, L-227, L-295, R-295, L-297, L-300, L-340, LR-340/2, LR-399/2, LR-440/2, LS-600/2
Systems Covered:
Engine mechanical, fuel/carburetor, ignition, exhaust, recoil starter, cooling
Procedures Included:
Repair, troubleshooting, assembly/disassembly, timing, maintenance
Single-Cylinder Models:
L-99, L-230, L-227, L-295, R-295, L-297, L-300, L-340
Twin-Cylinder Models:
LR-340/2, LR-399/2, LR-440/2, LS-600/2
Engine Mechanical:
Cylinder head, cylinder, piston, crankshaft, crankcase, bearings, seals
Fuel System:
Carburetor specifications, adjustment, rebuild, fuel pump (if equipped)
Ignition System:
Magneto, points, condenser, coil, spark plug, timing
Exhaust System:
Muffler, exhaust manifold, gaskets
Recoil Starter:
Disassembly, spring replacement, rope replacement, reassembly
Cooling System:
Air cooling (fins, shrouds) or fan-cooled components, if applicable
Lubrication:
Two-stroke oil mixing ratios, oil injection system (if equipped)
Electrical:
Wiring diagrams, charging system, lights, kill switch
Timing:
Ignition timing, port timing (where applicable)
Troubleshooting:
Engine performance, starting issues, fuel and ignition diagnostics
Assembly and Disassembly:
Step-by-step teardown and rebuild procedures
Operating Instructions:
Starting, break-in, operating guidelines
Warranty Information:
Terms and coverage as provided in the manual
Specifications:
Torque values, clearances, wear limits, capacities
Visual Aids:
Hundreds of photos and illustrations for procedures
Parts Information:
Part names and numbers referenced where applicable
File Format:
PDF (searchable, bookmarked, zoomable)
Compatibility:
Windows, macOS, Linux, iOS, and Android — any device with a PDF reader
Requirements:
A PDF reader application (e.g. Adobe Acrobat Reader, free)
Searchability:
Fully text searchable for fast lookup of any topic
Print Quality:
High-resolution digital pages, printable at full clarity
Binding Type:
N/A — digital download, no physical binding
Paper Type:
N/A — digital download, no physical paper
Engine Type:
Two-stroke, air-cooled, single-cylinder and twin-cylinder
Displacement Range:
Approximately 100 cc to 600 cc depending on model
Models Covered:
L-99, L-230, L-227, L-295, R-295, L-297, L-300, L-340, LR-340/2, LR-399/2, LR-440/2, LS-600/2
Horsepower:
N/A - varies by model; refer to manual for specific ratings
Torque:
N/A - varies by model; refer to manual for specific ratings
Compression Ratio:
N/A - varies by model; refer to manual for specific values
Carburetor Type:
Float or diaphragm type (varies by model)
Fuel Mix:
Two-stroke pre-mix or oil injection (depending on model)
Fuel Pump:
Mechanical or vacuum-operated (if equipped)
Wheelbase:
N/A - not specified for this engine manual
Length:
N/A - not specified for this engine manual
Width:
N/A - not specified for this engine manual
Height:
N/A - not specified for this engine manual
Curb Weight:
N/A - not specified for this engine manual
Service Intervals:
Refer to manual for specific intervals; typical for two-stroke engines include regular inspection of spark plug, air filter, and fuel system
Fuel:
Regular gasoline mixed with two-stroke oil (ratio per model)
Oil:
Two-stroke engine oil (TC-W3 or equivalent)
Gearbox Oil:
N/A - not specified for this engine manual
Common Wear Items:
Spark plugs, points, condensers, carburetor gaskets, seals, recoil starter rope and spring
Known Issues:
Refer to troubleshooting section for model-specific issues
Manufacturer:
JLO (J. Lohner & Co.), a German engine manufacturer
Years Active:
Mid-20th century
Applications:
Snowmobiles, go-karts, and other small vehicles
Model Evolution:
Progression from single-cylinder to twin-cylinder engines with increased displacement and power
Production Location:
Germany
