Yamaha TW200N/TW200NC Service Manual Set, 2001 (P/N LIT-11616-14-43)

Yamaha specifies that the 2001 supplement must be used with the two earlier references, both supplied in the combined reference PDF. The older drum-brake, kick-start, and manually adjusted cam-chain material belongs to the base reference; the separate supplement supplies the 2001 changes.

Text Search, Bookmarks, and Wiring Detail

Finding procedures and diagrams: Text search is unavailable in the combined reference PDF. Its chapter bookmarks provide navigation, but the top-level “Wiring Diagram” bookmark opens the cover. The 2001 supplement has searchable text and chapter bookmarks, although its final wiring diagram has no dedicated bookmark. Small wiring labels in both files require enlargement.

The ZIP contains 372 pages across two printable English PDFs: a 276-page combined reference and a 96-page supplement. The total includes the combined reference’s additional shared back cover, both foldout wiring diagrams, and 11 blank pages, along with the publications’ covers and front matter.

Engine Overhaul, Disc Brakes, and Electrical Diagnosis

The following selected contents show the main repair areas rather than reproduce the complete contents lists. Other documented topics include spark-arrester cleaning and headlight adjustment.

• Engine overhaul: Engine removal and installation, cylinder-head and valve repair, piston inspection, clutch and oil-pump service, crankcase separation, crankshaft, balancer, transmission, and shifter work.

• 2001 engine updates: Cylinder-head removal details, automatic timing-chain tensioner inspection and installation, stator and pickup-coil replacement, and AC-magneto removal.

• Carburetor service: MV28/TEIKEI removal, disassembly, component inspection, assembly, installation, float-height measurement, and fuel-level adjustment.

• Front disc brake: Wheel and disc inspection, pad replacement, master-cylinder and caliper rebuilding, brake-hose routing, hydraulic bleeding, and final operation checks.

• Electrical fault tracing: Switch continuity, intermittent or missing spark, starter interlocks, relay and diode testing, charging faults, lighting, horn, and indicator circuits.

• Suspension and running gear: Fork overhaul, steering-head bearings, handlebar service, wheel bearings, rear shock removal, swingarm inspection, and chain and sprocket assessment.

• Illustrated references: Model-specific wiring diagrams, cable-routing drawings, lubrication diagrams, exploded assemblies, job charts, torque tables, wear limits, and electrical test data.

Yamaha wrote these publications primarily for its dealers and qualified mechanics; users are expected to understand motorcycle repair and work with the specified measuring equipment and special tools.

Internal Engine Repair and the 2001 Updates

The base engine chapter contains step-by-step procedures for disassembly, inspection, repair, and reassembly. Its cylinder-head material extends to valve-guide replacement, valve-seat refacing and lapping, and rocker-arm and camshaft inspection.

Lower-engine coverage includes gear and shift-fork inspection, crankshaft measurements, balancer alignment, starter-drive assessment, and final assembly checks. Exploded drawings identify the transmission shafts, shifter components, and their installation relationships.

The later engine pages address the automatic timing-chain tensioner and revised stator/pickup-coil assembly. The AC-magneto job chart also identifies the starter idle gear, starter wheel gear, rollers, spring caps, springs, and starter clutch.

MV28 Carburetor Configurations

The supplement distinguishes carburetor identification marks 5FY10 for TW200EN and 5FY00 for TW200ENC. Separate main-jet, needle-position, and pilot-air-jet entries help the mechanic select the applicable specifications before working on either configuration.

Inspection extends to the piston valve and diaphragm, vacuum-chamber components, starter plunger, coasting enricher, float, needle valve and seat, jets, fuel passages, and hoses. Fuel-level measurement is illustrated with gauge YM-01312-A.

Brake Hydraulics, Forks, and Rear Suspension

Front-brake instructions cover piston and seal removal, cylinder and fluid-passage inspection, reassembly, hose positioning, bleeding, and lever checks. Yamaha warns that solvent can swell and distort the caliper piston seals. Front-end work requires secure motorcycle support, clean hydraulics, and a brake-operation check after bleeding.

The 2001 steering section distinguishes the upper and lower retainer-type bearings and illustrates their orientation. Fork-leg removal is updated in the supplement, while the earlier chassis chapter supplies internal fork inspection and overhaul procedures.

The base rear-suspension section covers the Monocross “De Carbon” shock and swingarm, including pivot bushes, thrust covers, shims, and side-clearance assessment. Its handling warnings address rupture from heat or tampering, impaired damping from cylinder damage, and oil leakage from piston-rod damage.

Circuit Diagrams and Workshop Equipment

The TW200EN/TW200ENC Wiring Diagram is accompanied by separate Ignition System, Electric Starting System, and Signaling System circuit diagrams. Cable-routing drawings and the base manual’s lubrication diagrams provide additional assembly references.

Electrical tests distinguish component faults from wiring and interlock faults. The starter cut-off explanation connects the neutral, clutch, and sidestand switches with relay operation, helping the mechanic investigate a no-crank complaint before condemning the starter motor.

Specified diagnostic equipment includes pocket tester YU-03112 and dynamic spark tester YM-34487. Base engine procedures also identify clutch holder YM-91042, valve spring compressor YM-04019, and rotor puller YM-01080.

Selected Carburetor Measurements and Disc Inspection Limits

For the 2001 MV28 carburetor, float height is 10–11 mm with the carburetor inverted, the gasket removed, and the float arm resting on the needle valve without compressing it. Fuel-level data specify 0.5–1.5 mm above the reference line at the float-chamber mating surface, with the motorcycle upright on level ground.

Front-disc inspection distinguishes the 3.5 mm standard thickness from the 3.0 mm minimum thickness. Maximum disc deflection is 0.15 mm.