2001 Aprilia Rotax 120/154/177 Workshop Manual (140 P.)

Timing chain, valve clearance, and oil pressure specifications for Leonardo and Scarabeo scooter engines with complete teardown and assembly procedures.

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Technical Safety Notice
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This official OEM document is intended for professional technicians and skilled operators. Performing service on mechanical equipment involves inherent risks. By purchasing, you acknowledge that RepairLoader provides original manufacturer data for informational purposes. Always prioritize safety: use correct tools, wear protective gear, and consult a certified professional if you are uncertain of any procedure.

Rotax Models Covered & Key Technical Specifications

Models: Aprilia Leonardo 125 (Type 120), Aprilia Leonardo 150 (Type 154), Aprilia Scarabeo 150 (Type 154S), Aprilia Scarabeo 175 (Type 177S), Aprilia Scarabeo 180 (Type 177S)
Sub-models / Variants: Type 120, Type 120S, Type 154, Type 154S, Type 177S
Trade Names: Leonardo, Scarabeo
Build Years: 2001
Serial Numbers: Located on crankcase (transmission side), Leonardo 120/154, Scarabeo 120/154/177
Technical Data:

  • Engine displacement: 124.9 cm³ (Type 120), 150.9 cm³ (Type 154), 176.3 cm³ (Type 177S)
  • Compression ratio: 12.6 ±0.4:1 (Type 120), 12.35 ±0.4:1 (Type 154), 11.3 ±0.4:1 (Type 177S)
  • Engine oil capacity: approx. 1000 cm³ (1.0 l)
  • Gearbox oil viscosity: HD 75W-90
  • Idle speed: 1500 rpm
  • Generator power: 12V 160W DC
Technical Specifications
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Document Number / Seller:
24174 / Deborah Scott
File Size:
42.72 MB
File Type:
PDF
Language:
English, Italian
Pages:
140
Printable:
Yes
Category:
Gasoline-Engines
Last updated / verified
Aug 20, 2025

Rotax Manual Features & Content Preview

Aprilia Rotax Type 120/154/177 Workshop Manual

  • Covers 2001 Aprilia Leonardo 125, 150 and Scarabeo 150, 175/180 scooters with Rotax liquid-cooled single-cylinder engines
  • Official Rotax publication, edition 2001, form number 8140599
  • Contains 47 detailed exploded-view mechanical illustrations and 14 technical torque-wrench setting tables
  • File links appear in your order confirmation straight away
  • Stored against your account so you can retrieve it after a hard-drive loss
  • Full-text search finds any part number in seconds
  • Laid out for standard letter and A4 printing
  • This 2001 first edition is the factory reference used for all Type 120, 154, and 177 Rotax engine servicing and technical maintenance

Engine Technical and Maintenance Documentation

The 140-page publication details the mechanical architecture of the Rotax 120, 154, and 177 engine series. It provides extensive chapters on engine dismantling and reassembly, including specific procedures for the cylinder head, valve train, crankcase, and crankshaft assembly. The document serves as a workshop manual for Aprilia Rotax owners seeking detailed technical data and service specifications for these high-performance scooter engines.

Technical Data Preview

The manual includes comprehensive specification tables for fluid capacities and internal tolerances. Coolant system capacity is documented as 50% antifreeze and 50% water. The Rotax 177S engine produces 12 kW at 8500 rpm according to the factory specification sheet. The transmission gear oil capacity for Scarabeo models is 110 cm³. Piston/cylinder clearance for these units is documented at 0.04–0.072 mm. All service data shown here is for reference only — qualified technicians and the original OEM documentation remain the authoritative source for any hands-on work. This official 140-page Rotax workshop manual covers the 2001 Aprilia Leonardo and Scarabeo engine range, documenting engine, chassis, electrical, and transmission specifications for the Rotax 120/154/177 build series.

Manual FAQ, Purchase & Download Details

What model variants are included in the 2001 Aprilia Rotax 120/154/177 Workshop Manual? keyboard_arrow_down

Document covers the Leonardo 125 (Type 120), Leonardo 150 (Type 154), Scarabeo 150 (Type 154S), and Scarabeo 175/180 (Type 177S) model variants from the 2001 production year.

Does the manual provide technical specification tables for engine components? keyboard_arrow_down

Technical data sections include detailed specification tables for engine types 120, 154, and 177, providing information on bore and stroke, compression ratios, valve clearance references, and ignition timing.

What information can be found regarding oil circuit and lubrication components? keyboard_arrow_down

Oil circuit section includes exploded views and descriptive details regarding the eccentric rotor pump, oil filter, oil pressure switch, and oil pressure retaining valve functionality.

Is the manual available as a downloadable PDF file with defined page count and language support? keyboard_arrow_down

Digital sourcebook is provided in PDF format and contains 140 pages of documentation, featuring both English and Italian language text.

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