Yamaha snowmobile engines
EPA certification records list 25 snowmobile engine families from Yamaha, model years 2017–2020. Naturally Aspirated engines make up 88% of families. The most families were certified in 2018 (10).
Engine families25
Engine models10
Model years2017–2020
Rank in category#4of 4 makers by families
Families certified per year
Technical mix
Fuel
Gasoline (up to and including 10% Ethanol)25
Aspiration
Naturally Aspirated22Turbocharged3
Configuration
4 Stroke222 Stroke3
Cylinders
1 cyl53 cyl3
Most certified engine models
2002-09238Ju3Mz 12538Kx38Kj37Dha28Gn28Et28Km28Ky2
Engine families
| Family | Model | Year | Fuel |
|---|---|---|---|
LYMXY1.04BDA | 8Ju | 2020 | Gasoline (up to and including 10% Ethanol) |
KYMXY.123AC4 | Mz 125 | 2019 | Gasoline (up to and including 10% Ethanol) |
KYMXY.192BC4 | 7Dha | 2019 | Gasoline (up to and including 10% Ethanol) |
KYMXY.535CAB | 8Kx | 2019 | Gasoline (up to and including 10% Ethanol) |
KYMXY.998LT4 | 8Kj | 2019 | Gasoline (up to and including 10% Ethanol) |
KYMXY1.05TR4 | 2002-092 | 2019 | Gasoline (up to and including 10% Ethanol) |
JYMXY.123AC4 | Mz 125 | 2018 | Gasoline (up to and including 10% Ethanol) |
JYMXY.192BC4 | 7Dha | 2018 | Gasoline (up to and including 10% Ethanol) |
JYMXY.499BDA | 8Gn | 2018 | Gasoline (up to and including 10% Ethanol) |
JYMXY.535CAB | 8Kx | 2018 | Gasoline (up to and including 10% Ethanol) |
JYMXY.973BAA | 8Et | 2018 | Gasoline (up to and including 10% Ethanol) |
JYMXY.998BDB | 8Km | 2018 | Gasoline (up to and including 10% Ethanol) |
JYMXY.998LT4 | 8Kj | 2018 | Gasoline (up to and including 10% Ethanol) |
JYMXY1.04BDA | 8Ju | 2018 | Gasoline (up to and including 10% Ethanol) |
JYMXY1.04BDB | 8Ky | 2018 | Gasoline (up to and including 10% Ethanol) |
JYMXY1.05TR4 | 2002-092 | 2018 | Gasoline (up to and including 10% Ethanol) |
HYMXY.123AC4 | Mz 125 | 2017 | Gasoline (up to and including 10% Ethanol) |
HYMXY.499BDA | 8Gn | 2017 | Gasoline (up to and including 10% Ethanol) |
HYMXY.535CAB | 8Kx | 2017 | Gasoline (up to and including 10% Ethanol) |
HYMXY.973BAA | 8Et | 2017 | Gasoline (up to and including 10% Ethanol) |
HYMXY.998BDB | 8Km | 2017 | Gasoline (up to and including 10% Ethanol) |
HYMXY.998LT4 | 8Kj | 2017 | Gasoline (up to and including 10% Ethanol) |
HYMXY1.04BDA | 8Ju | 2017 | Gasoline (up to and including 10% Ethanol) |
HYMXY1.04BDB | 8Ky | 2017 | Gasoline (up to and including 10% Ethanol) |
HYMXY1.05TR4 | 2002-092 | 2017 | Gasoline (up to and including 10% Ethanol) |
Other snowmobile engines makers
Source
US Environmental Protection Agency engine certification data. Model year and manufacturer are decoded from EPA engine family codes (EPA codes:YMX). An engine family is a group of engines certified together; one family can cover several power ratings.
Engine calculators
Torque, power and BMEPPower from torque and RPM · Torque from power and RPM · Brake mean effective pressure (BMEP)Engine displacementDisplacement from bore, stroke and cylinders · Bore from displacement and stroke · Stroke from displacement and boreBSFC and thermal efficiencyBSFC from power and fuel flow · Fuel flow from power and BSFC · Thermal efficiency from BSFCCompression ratioStatic compression ratio · Chamber volume for a target compression ratio · Theoretical compression pressurePiston speedMean piston speed · Maximum RPM for a piston speed limit · Rod ratio, piston velocity and acceleration
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