Model:
90cc ATV (Baja 90 / Baja Wilderness 90)
Model Variants Covered:
All styles, including Baja Wilderness 90cc
Model Years Covered:
2005, 2006, 2007, 2008, 2009, 2010, 2011
Vehicle Type:
Youth/recreational all-terrain vehicle (ATV)
Market:
North America (USA)
Target Audience:
Youth ATV segment; entry-level recreational riders
Primary Users of Manual:
Do-it-yourself owners as well as experienced mechanics
Intended Use:
Recreational off-road riding, property and light utility tasks
Competitors:
Other small-displacement 90cc youth ATVs of the mid-2000s (e.g., Chinese-built 90cc units)
Advantage:
Inexpensive to buy and to keep running properly with factory service information
Parts Availability:
N/A - not specified for this model
Engine:
Air-cooled 90cc four-stroke single-cylinder engine
Transmission:
Automatic CVT transmission
Safety Focus:
Youth-sized controls and speed-limiting provisions typical for the class
Simple Servicing:
Basic design intended for easy owner maintenance
Manual Type:
Complete official full factory workshop service repair manual
Coverage:
All styles covered, based on complete vehicle disassembly
Source:
Factory service documentation
Delivery:
Instant download link on checkout page after payment completes
Printable:
Yes, without any restriction - print single pages or the entire manual
Requirements:
Adobe PDF Reader; works on all PC-based Windows operating systems and Mac
Storage:
Saves to hard drive; can be burned to CD-ROM
Page Count:
Hundreds of pages
Illustrations:
Hundreds of photos, drawings and detailed illustrations
Table of Contents:
Numbered table of contents for fast lookup
General Information:
Identification, specifications, special tools, torque values
Periodic Maintenance:
Service schedules, inspection and adjustment procedures
Engine:
Complete engine removal, disassembly, inspection and rebuild
Fuel System:
Carburetor, fuel tank, throttle and air intake servicing
Lubrication System:
Oil system servicing and lubrication points
Chassis:
Frame, suspension, steering, brakes, wheels and tires
Electrical System:
Ignition, charging, starting and lighting circuits
Servicing Information:
Final inspection, troubleshooting data and service references
Repair Procedures:
Step-by-step instructions based on complete disassembly of the machine
Substeps:
Detailed substeps expand on repair procedure information
Electrical Diagnostics:
Troubleshooting combined with detailed wiring diagrams
Fault Diagnosis:
Easy diagnosis and repair of electrical system problems
Assembly Guidance:
Numbered instructions guide every repair procedure step by step
Detail Level:
Full professional quality, in-depth service and repair coverage
References:
Notes, cautions and warnings pinpoint critical information
Figures:
Bold figure numbers match illustrations to instructions
Insets:
Enlarged insets help identify and examine parts in detail
Photos:
Hundreds of photos and illustrations guide each procedure
Parts Identification:
Enlarged part insets and detailed drawings for identification
Part Numbers:
N/A - this is a service manual, not a parts catalog
Torque Specs:
Factory torque specifications included in General Information
Special Tools:
Special tool listings covered in General Information
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
Primary Engine:
90cc air-cooled four-stroke single-cylinder engine
Engine Options:
Single engine option across 2005-2011 model years
Starter:
Electric start with kick-start backup typical for this model
Rated Output:
N/A - not published in the provided listing
Top Speed:
N/A - youth model fitted with speed-limiter provisions
Performance Data:
Full specifications listed in the manual's General Information chapter
Fuel Delivery:
Carbureted
Fuel Type:
Regular unleaded gasoline
Fuel Tank Capacity:
N/A - not specified for this model
Servicing:
Complete carburetor and fuel system procedures covered in manual
Standard Transmission:
Automatic CVT (continuously variable transmission)
Optional Transmission:
N/A - automatic CVT only, no options offered
Final Drive:
Chain final drive typical for this class
Gear Selection:
Automatic; no manual shifting required
CVT Servicing:
Belt, roller and pulley service procedures included in manual
Clutch Type:
Centrifugal automatic clutch
Lubrication:
Transmission case lubrication covered in Lubrication System chapter
Wheelbase:
N/A - not specified for this model
Overall Length:
N/A - not specified for this model
Dimensions Source:
Full dimensions listed in the manual's specifications section
Tires:
Small-diameter youth-ATV tires typical for 90cc class
Curb Weight:
N/A - not specified for this model
Weight Rating:
N/A - not specified for this model
Seat Height:
N/A - not specified for this model
Crash Test Ratings:
N/A - ATVs are not crash tested like passenger vehicles
Certification:
Youth ATV class, subject to age-appropriate use guidelines
Operator Age:
Intended for supervised youth riders per manufacturer guidance
Speed Limiter:
Adjustable throttle/speed-limiting provisions typical for youth ATVs
Brakes:
Drum/disc brake service and adjustment covered in Chassis chapter
Engine Kill:
Tether/kill switch circuit covered in Electrical System chapter
Foot Protection:
Running boards/footwells typical for the class
Warning Labels:
N/A - not specified in the provided description
Audio System:
None - this ATV has no audio or infotainment system
Instrumentation:
Basic gauges/indicator lights covered in Electrical System chapter
Driver Assistance:
None - no electronic driver assistance systems on this ATV
Electrical Support:
Wiring diagrams and troubleshooting aid diagnosis of all electrical circuits
Periodic Maintenance:
Complete periodic maintenance schedules included in dedicated chapter
Routine Items:
Oil changes, valve clearance, chain, brakes, carburetor adjustments
Pre-Ride Checks:
Inspection procedures for safe operation
Engine Oil:
Specifications and capacities listed in General Information chapter
Oil Capacity:
N/A - not specified in the provided description
Lubrication Points:
Chassis and cable lubrication points covered in Lubrication System chapter
Known Issues / Wear Items
Common Wear:
CVT drive belt, brake shoes/pads, chain and sprockets, spark plug
Electrical:
Wiring and switch faults diagnosable with included wiring diagrams
Carburetor:
Idle and mixture drift on carbureted engines; adjustment procedures provided
Manufacturer:
Baja Motorsports, a US-based distributor of small-displacement power sports products
Brand Focus:
Affordable dirt bikes, go-karts and ATVs for recreational use
Model Names:
Marketed as Baja 90 and Baja Wilderness 90
Production Run:
Sold from 2005 through 2011 with minor running changes
Platform:
Single 90cc four-stroke platform throughout the run
Production Location:
N/A - not specified for this model
Assembly Origin:
Units of this class were commonly imported from Asia