Dedicated Subsystem WorkbenchPlatform Gen: 2008–2020

2015 Yamaha YZF-R6 Cylinder Compression & Leakdown Diagnostic Engine

Factory compression specs for 2015 Yamaha YZF-R6: standard pressure 175 - 225 PSI (1207 - 1551 kPa), service limit 150 PSI, dry vs wet test diagnostics and acoustic leak stethoscope.

Technical PassportOEM VERIFIED

Engine

599cc

Cooling

Liquid-Cooled

Final Drive

525 Chain

Engine Oil

2.60 L (2.75 US qt)

Spark Plug

NGK CR10EK

Front Tire

120/70ZR17

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: 2015)
13 Production Years (2008–2020)

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

Suggested Items4 Verified Workshop Consumables Available for this Job

View Suggested Items ↓

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

0 Open Campaigns (Clean)

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

Verify VIN on NHTSA.gov

No Active Federal Safety Recalls Reported

The U.S. DOT National Highway Traffic Safety Administration (NHTSA) records zero open safety recall campaigns for the 2015 Yamaha YZF-R6 platform. Always check your individual 17-digit VIN at an authorized dealership or via NHTSA.gov for individual recall completions.

OEM Workshop Archives

Official Factory Service Bulletins & Field Updates

1 Documented Bulletin

Bulletin #YAM-15V176Safety Recall 15V-176: FZ-09 / MT-09 / YZF-R6 Shift Cam Segment Stopper & Shift Shaft Assembly

Source: Yamaha_FZ09_MT09_R6_Recall_ShiftCamStopper.pdf

Mandated Torques:Hand-Tool Torque Mandate: Air tools strictly forbidden on YZF-R6 slipper clutch boss nut to prevent mainshaft thread strippingBlue Paint Identification Dot on shift shaft end denotes campaign completion

Consumable Specs:Yamalube 4T Engine OilLithium Soap-Based Grease for Oil Seal Lips

Genuine Part Numbers:90891-10251-001RC-18101-01-001RC-15461-00-0090891-10254-002C0-18101-02-002C0-15461-01-00

Transmission MechanismExploded View: Shift Cam Segment Stopper & Shift Shaft (Safety Recall 15V-176)

Sharp Notch vs. Smooth Radius Defect • Blue Paint Identification Dot

Click any component or inspection mark to view recall remedy specifications.

Inspection TargetRecall 15V-176

Shift Cam Segment Stopper (Sharp vs. Smooth Bend)

Kit # 90891-10251-00 (FZ09) / 90891-10254-00 (R6)

Mechanical Engineering Status:RECALL 15V-176 DEFECT LOCUS

CRITICAL RECALL DEFECT: The original factory stopper arm was stamped with an acute sharp internal notch at the bend. Under rapid gear shifts, cyclic fatigue caused catastrophic fracture at the notch. The countermeasure part features an engineered smooth radial bend that distributes stress evenly.

Interactive Assembly Nodes: