Description

Yamaha T135SE, T135S 2007 Service Manual – Factory Specs & Procedures

If you’ve ever tried to rebuild a small-displacement four-stroke using a Haynes or Clymer, you know the drill. You get to a torque spec, and it says ‘tighten securely.’ That’s not a spec, that’s a guess. On a bike like the Yamaha T135SE, T135S 2007 Service Manual, guessing on a cylinder head bolt or a clutch nut means stripped threads or a leak that’ll have you pulling the engine again. This 2007 manual from Yamaha gives you the numbers that matter — factory torque values, clearance checks, and diagnostic sequences that aftermarket manuals skip. 349 pages of procedures written for mechanics who have to get it right the first time.

Yamaha T135SE, T135S 2007 Service Manual: Engine and Transmission Coverage

Part 1 of the manual opens with the engine — disassembly, inspection, and reassembly of the 135cc four-stroke. Each step has a torque value. The manual distinguishes between the T135SE (manual clutch) and the T135S (automatic centrifugal clutch). You’ll find the exact shim thicknesses for the cam chain, piston ring end gaps, and valve clearance specs. Page 1 of the manual lists the models: Sniper, Jupiter MX, Spark 135, Exciter, 135LC — all variations of this platform. Whether you’re swapping a piston or checking timing chain tension, the factory procedure is laid out in sequential steps with warnings marked with the safety alert symbol.

Clutch System: Manual vs. Automatic

Two clutch designs, one manual. The T135SE uses a cable-operated multi-plate clutch; the T135S uses a centrifugal automatic. If you mix up the parts or miss a shim, the bike won’t engage properly. The manual dedicates a full section to clutch removal, plate measurement, and basket inspection. It also tells you which special tools you need — like the clutch holding tool (part number listed). No guesswork. You follow the sequence and torques, and it works. Page 4 of the manual contains the safety warning that reminds you: improper repair can render the vehicle unsafe. Pay attention to that.

Factory Safety Warnings and Notices

Read page 4 before you turn a wrench. Yamaha’s legal disclaimer is blunt: if you don’t have basic mechanical knowledge, don’t attempt repairs. The manual uses three levels of alerts — Warning (injury/death), Caution (component damage), and Note (helpful info). I’ve seen techs ignore the Caution symbols and snap off bolts because they used an impact gun on a cast aluminum case. The manual tells you when to use a torque wrench. Follow it. The notice also states that specifications are subject to change, so always check for updates — but this 2007 release is the final word for that model year.

Does This Manual Cover the Fuel System?

Yes, chapters on carburetion (keihin carb) cover float height, jet sizing, and idle mixture. The manual includes a troubleshooting chart for common complaints — hard starting, bogging, backfiring. It tells you how to synchronize the carb with the air screw and throttle position sensor (if equipped). No aftermarket manual gives you the factory pilot jet size for a stock T135SE at sea level. This one does. You’ll also find the recommended fuel octane and engine idle speed (1,400-1,500 rpm). These details save you from buying unnecessary parts.

349 Pages of Factory-Approved Procedures

Every page in this manual comes from Yamaha Motor Co., Ltd., not a third-party publisher. The table of contents divides the manual into five parts: general information, periodic inspection and adjustment, engine, chassis, and electrical. The periodic inspection chapter includes service interval charts, lubrication points, and cable adjustments. The wiring diagrams are in color (PDF) with wire color codes and connector views. Need to diagnose a no-spark condition? The manual gives you a step-by-step voltage check at each component. No ‘check for continuity’ without specifying which pins. That’s OEM quality.

Does this manual cover the T135 automatic clutch model?

Yes, it covers both T135SE (manual clutch) and T135S (automatic).

What page has the torque specifications?

Torque values are listed in each chapter next to the specific fastener — refer to the procedure for the component you’re servicing.

I’m a beginner, can I use this manual?

The manual assumes you have basic mechanical knowledge and a proper set of tools. It includes step-by-step procedures with clear instructions and torque specs, but if you lack fundamental understanding of engine mechanics, you risk causing damage or injury. Read the safety notice on page 4 before starting. Start with simpler tasks like oil changes or valve adjustments to build confidence.

Is this a reprint or original OEM?

This is a direct digital copy of the original 2007 Yamaha factory manual, not an aftermarket reprint.

Bottom line: if you own a T135SE or T135S from 2007, this manual pays for itself the first time you avoid a stripped bolt or a misdiagnosed electrical problem. The factory wiring diagrams alone are worth the price. Don’t rely on forum posts or generic manuals. Get the actual procedure from the people who built the bike. Access the Factory Manual and keep it in your toolbox — digital or printed, it’s the only spec sheet you can trust.

Related Manuals

• Yamaha XT350 1985 Service Manual – Factory Specs & Torque Data
• Yamaha YZF600RJ 1996 Service Manual – Factory Specs & Repairs
• Yamaha YZF-R1S YZF-R1SC 2003 Service Manual – Factory Torque Specs

For reference on basic automotive transmission types, see Manual Transmission and Manual Transmission — though this manual focuses on Yamaha’s specific clutch designs.