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Yamaha TT 600 59X-keeping Air Cooled off-road legend alive
Between the puristic XT 500 and the water-cooled WR generation, the Yamaha TT 600 59X (Model Years 1983-1989) As an epitome of air-cooled single-cylinder enduros: 595 cm³, four-valve SOHC, 43 mm stable, 300 mm rally brake disc-everything packed in a 125-kilogram dry weight. The TT 600 was designed for rally raids and enduro site from the factory without light, indicator or electric starter; At the same time, with a small headlight kit, it was suitable as a “hard enduro” for ambitious weekend pilots. Four decades later, the punch of the air -cooled single -cylinder still inspires, but only regular maintenance and High quality Yamaha TT 600 59X spare parts Protect the kick-start myth from oil deficiency plagiarism, valve seat fretting or swimmer thirst. In the following guide we deliver a good 2,000 words of the practical knowledge: components, intervals, weak points, sensible upgrades-everything has been tested several times in our motorize workshop, where over 30 59x engines have been revised since 2008.
1 | Development & type codes
The TT family started in 1981 with the 34K series (562 cm³). In 1983 the TT 600 59X as a major European series and US export (type 36a). She took over the piston and pleuel of the Dakar-proven XT 550, but received a 97 mm piston with a reduced hub (84 mm)-a total of 595 cm³. Disturbance features:
✓ Plastic tank 11 L, side aluminum scoops, one-piece rally seat bench.
✓ Lightweight elements did 1.60 × 21 / 2.15 × 18, drum at the back Ø 140 mm.
✓ Kickstart + manual decorative lever, four-speed gear up to ’85, five speed from ’86.
✓ 43 mm-kyb fork, monocross lever with KyB springbing 300 mm travel.
In 1989 the 59x went out; Successor TT 600 S/SC (3SW) received electric starters, double pipe frames and heavier crank. Later, TT 600 R DJ01 (1998) and TT 600 R 4GV (2003) with DOHC fuzzle valve head followed-many components (clutch, collar chains, piston rings) are nevertheless backward compatible, which makes the supply of spare parts easier.
2 | Motor & intake-Simplex chain drive, twin-carb power
The core of the 59x heart is the air-cooled Aluminum cylinder with Nicasil coating. It houses a 4-valve SOHC layout, driven by a 219 DID control chain via primary wheel. The mixture preparation takes care of a dual carburetor system: Mikuni VM34SS primarily with vacuum slide and a suction tube secondary carburetor Ø 30 mm, which is switched at 1/2 → full throttle. The following spare parts are indispensable for a long life cycle:
✓ Nicasil-cylinder running socket
Athena 1W2-11311-A0, Plateau-Geh, 97 mm.
✓ Piston ring set Ø 97 mm
OEM 59x-1103-00 or Wössner 8264d.
✓ Control chain
DID 219-FHV 108 members + nietschloss.
✓ Rubber suction nozzle
59x-13586-00 / -13596-00, ethanol-resistant.
Setup tip: Series use 135 HD / 40 LD, needle 4J13-3, secondary nozzle 90. Open SR racing dampers requires 140 HD, secondary 95. Valve game: admission 0.08 mm, outlet 0.12 mm every 5,000 km. Check the tipping lever at> 40,000 km for Pitting; Exchange lever 3YF-12171-00 (nitrating steel) extended service life.
3 | Electrics & ignition-CDI kick without battery
The 59x works Batterielos: 6-pin light machine supplies 35 W light circuit + 55 W ignition. CDI box 34K-85540-10 has fixed advance (14 ° → 34 °). The weakest point is the pickup cable tree, the PVC browse after 30 years. Modernization:
✓ Neu-Stator 100 W
Electrex World G70 - +65 W light reserve.
✓ DC-CDI Ignitech
12-V conversion + Life battery, Map-circulating Rally/Street.
✓ H4 LED headlights 20 W
3,000 lm, ABE, –0.5 kg.
✓ Iridium dr8eix
15 % lighter cold start, more constant spark energy.
4 | Chassis & brakes-Rally Federweg without Wipporgie
43 mm-cyb fork (pressure damping below, train above) delivers 300 mm travel; Oil amount 590 ml (Sae 5 W). The monocross heck uses a Kyb spring bone with a 5-fold preload, no train level. Brakes: 300 mm NG-Wave slice + Nissin-1-piston (front), drum at the back. For current off-road claims, it is recommended:
✓ Fork simmer rings 43 × 55 × 11-NOK ARI 067.
✓ Racetech Goldvalve FMGV-S43-Cartridge conversion.
✓ Wilber's zero friction springs-0.46 → 0.63 kg/mm.
✓ YSS MZ456-TRL Spring-Train + pre-tension hydraulic.
✓ Steel flex cable Speigler-pressure point stable.
5 | Maintenance plan & wear
| Service point | interval | Parts / fluid |
|---|---|---|
| Motor oil + filter | 2 500 km / 12 months | Motul 7100 10W-50, filter HF145 |
| Valve game | 5,000 km | Shims Ø 26 mm, set of hot cams |
| Control chain | 10,000 km | Did 219-FHV 108l |
| Clean the air filter | 500 km off-road | Twin Air 26-8006 + no toil oil |
| Fat steering head bearings | 10,000 km | All-balls 22-1006, fat NLGI-2 |
| Wing | 15,000 km | Nadell bearing HK 2212, sealing caps |
6 | Typical weaknesses & solutions
✓ Kickstarter setback
Exchange freewheel spring 59x-15517-00, gear edges "Undercut".
✓ Head disc tears around candle
Heat reduction - plan head, cylinder screws 43 Nm, copper seal.
✓ Nicasil detachment
Overheating-oil cooler kit + 10W-50, re-platform at Langcourt EU.
✓ Drum brake fading
EBC GX-Series coverings, drum turning 150.00 +0/-0.05 mm.
7 | Sensible upgrades - more control with the same character
- ✓ Keiin FCR-41 - +5 hp, spontaneous gas, easy start.
- ✓ Oil cooler-kit Setrab 7 rows - 12 ° C less oil temp.
- ✓ Rally tank acerbis 20 l - +180 km range.
- ✓ Haben milling + Excel rims - 1.2 kg less rotating mass.
- ✓ LED lighting + DC conversion - 65 W Reserve for Navi & heating handles.
8 | Parts supply & scene
Yamaha lists pistons, control chains, sealing rates and clutch. Used market: tt-club.de, Horizonsunlimited and eBay classifieds; There are NOS frames, GST plastics and rare 11-liter alut tanks. 3-D printable shares deliver speedometer holders, fork protector clips and float chamber fans. Stainless steel exhaust (SR Racing) saves 1.6 kg, including e-test mark.
9 | Conclusion - 59x driving means: a kick, a grin
The Yamaha TT 600 59X remains an unadulterated enduro icon: air-cooled torque single, rally suspension tract and minimalist weight. With high quality TT 600 59x spare parts -From piston rings to Iridium candles to progressive springs-the legendary one-kick start remains, the floating front and the endless drift through gravel slopes. Keep oil fresh, valves exactly, Nicasil intact - and your 59x will still draw dust clouds even after 50 years. Kick it, ride it, love it!
Browse now-and equip your 59x with tested Yamaha parts for the next off-road discer!
