Dedicated Subsystem WorkbenchPlatform Gen: 2008–2020

2018 Yamaha YZF-R6 Cylinder Compression & Leakdown Diagnostic Engine

Factory compression specs for 2018 Yamaha YZF-R6: standard pressure 175 - 225 PSI (1207 - 1551 kPa), service limit 150 PSI, dry vs wet test diagnostics and acoustic leak stethoscope.

Gen 2008–2020

Factory Platform Compatibility: All workshop fluid capacities, maintenance milestones, torque specifications, and consumables on this specification sheet are factory-identical across model years 2008 through 2020.

Select Model Year:(Active: 2018)

2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020

Engine

599cc

Drive

525

Cooling

Liquid-Cooled

Cylinder Compression & Leakdown Diagnostic Engine

Multi-Cylinder Dry vs. Wet Test Bench, Differential Pressure Regulator & Acoustic Stethoscope Locator

Ratio: 13.1:1Std: 175-225 PSILimit: 150 PSIWhip Adapter: M10 x 1.0

Diagnostic Presets:

Cyl #1 (Left)IN-SPEC

208PSI(1434 kPa)

Cyl #2IN-SPEC

206PSI(1420 kPa)

Cyl #3IN-SPEC

204PSI(1407 kPa)

Cyl #4 (Right)IN-SPEC

202PSI(1393 kPa)

Cross-Cylinder Variance: Δ 6 PSI (OEM Limit: ≤ 14 PSI)

VARIANCE IN-SPEC

All cylinders demonstrate strong, balanced mechanical sealing. Piston ring packs, cylinder cross-hatch, and valve seats are within factory specification.

Official Workshop Manual Compression Test Protocol

Step 0 of 5 Completed

Step 1: Engine Operating Temperature

Run engine until coolant reaches 60°C - 80°C (140°F - 176°F). Cylinder expansion brings rings and pistons to true operating clearances.

Step 2: Spark Plug Removal & Port Clean

Blow compressed air around spark plug wells to eject grit, then remove all spark plugs. Thread in M10 x 1.0 whip adapter hand-tight with fresh O-ring.

Step 3: Wide-Open Throttle (WOT) Lock

Hold throttle grip fully wide open (or lock throttle bodies open) to eliminate intake butterfly vacuum restriction and ensure 100% volumetric cylinder filling.

Step 4: Battery Tender Voltage Stabilization

Connect a 12V shop battery tender or booster. Starter must sustain uninterrupted cranking speed (350 RPM) to build maximum dynamic stroke pressure.

Step 5: Crank 4-6 Compression Strokes

Engage starter until gauge needle ceases rising (typically 4 to 6 strokes). Record maximum peak pressure and compare against the OEM limits above.

Official NHTSA Safety Recalls & Technical Bulletins

1 Active Campaign

U.S. Department of Transportation compliance database (Title 49 U.S.C. Chapter 301).

Verify VIN on NHTSA.gov

The U.S. National Highway Traffic Safety Administration reports 1 safety recall campaign associated with this platform. Independent repair shops and riders should confirm that authorized dealership warranty remedies have been applied.

NHTSA #10V365000EXTERIOR LIGHTING

Received: 05/08/2010▼

Defect Description

YAMAHA IS RECALLING CERTAIN MODEL YEAR 2006 THROUGH 2010 YZF-R6 MOTORCYCLES MANUFACTURED FROM AUGUST 2005 THROUGH MARCH 2010. THE MOTORCYCLE'S FRONT SIDE REFLECTOR WAS NOT PLACED AT THE PROPER HEIGHT WHICH FAILS TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT."

Safety Hazard / Consequence

VISIBILITY OF THE MOTORCYCLE WILL BE DECREASED, POSSIBLY INCREASING THE RISK OF A CRASH.

Factory Remedy & Repair Action

YAMAHA WILL NOTIFY OWNERS AND DEALERS WILL REPAIR THE MOTORCYCLES FREE OF CHARGE. THE SAFETY RECALL BEGAN ON AUGUST 12, 2010. OWNERS MAY CONTACT YAMAHA AT 1-800-962-7926.

Manufacturer Notes: OWNERS MAY ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S VEHICLE SAFETY HOTLINE AT 1-888-327-4236 (TTY 1-800-424-9153), OR GO TO <A HREF=HTTP://WWW.SAFERCAR.GOV>HTTP://WWW.SAFERCAR.GOV</A> .