Test #1 Study Flashcards by Ryan Hawk

Air pump which increases intake pressure.

Supercharger

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A 5-speed transmission normally has 2 shift forks. (True/False)

False

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What’s the prupose of the shift mechanism?

Moves the shift forks.

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All gears on one shaft mesh with all gears on other shaft all the time.

Constant Mesh

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What property does API rate in motor oil?

Service duty or levels of protection.

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CVT’s are commonly found on what:

ATV’s

UTV’s

Snowmobiles

Scooters

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What’s the purpose of the shift fork?

Moves the slider gears.

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Can handle radial loads as well as axial thrust loads in both directions.

Ball Bearings

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Purpose and application of a dry lubricant.

Used on cables and levels where contaminate accumulation is a concern.

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Can handle radial loads but can only take thrust loads in one direction.

Tapered Bearing

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Two purposes of the intake manifold:

A.) Intake conduit which seals between the intake system and engine.

B.) Part of the tune length.

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A fixed gear may be……… on to the shaft.

Machined Splined Pressed

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An indirect drive will have all the driven gears on what shaft?

Crankshaft

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Changes fuel valve to use more fuel in the tank.

“RES” function

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What is the gear ratio in the top gear of a direct drive transmission?

1:1

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Type of bearing that requires a layer of high-pressure oil between it and the roating surface and normally has a split design.

Precision Insert (Plain Bearing)

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Radial Loads

Right angle to the shaft.

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What can be used in the transmission instead of a slider gear?

CVT

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Two methods of rating octane

(R) Research

(M) Motor

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What is the purpose of a sliding gear?

Toyou dog lock into freewheeler

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Name the three types of shift detents.

A.) Arm and Roller

B.) Spring and Plunger

C.) Spring and Ball

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Three types of air filters:

A.) Paper

B.) Foam

C.) Gauze (Oiled Fabric)

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Purpose of the oil filter bypass valve.

Allows oil to pass the filler to maintain lubrication needs in the engine.

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Purpose of the oil pressure relief valve.

Maintains oil pressure at the same force it takes to open the valve.

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Main advantage of oxygenated gasoline.

Reduse emissions

Basic rule to identify slider, fixed, and freewheeling gears

Sliders are the gears with channels for shifting fork. Opposite and next to each spider are the freewheelers. All others are fixed.

The maximum number of speed may be determined by multiplying the number of shift forks times 2:

True

Name the four pruposes of bearings:

A.) Reduce friction on moving parts. B.) Support axial and/or radial loads on the shaft. C.) Control End Play D.) Provide Spacing

Manual override on the bike makes engine pump (prime) fuel.

"PRI" function

Name the three types of gears used in Motorcycle transmissions.

Fixed Free wheeler Slider

Opens when engines running but closes when it's off.

Vacuum type petcock

Shift forks can be made of?

A.) Bronze B.) Hard Chromed Steel

The "W" in multiviscosity oil means?

Winter Grade

What's the purpose of the final drive?

Transmits power from the transmission to the rear wheel.

Air/Fuel ratio of 12:1 is ________ than stoichiometric?

Richer

Fuel Valve enables:

The fuel tank to be removed for servicing the bike.

Because of its ability to deal with extreme pressures, this is used in modern shaft drive rear ends....

Hyphoid Spec Oil

The carburetor must be jetted richer when what occurs?

Air Density increases

What does SAE rate?

Viscosity

Six purposes of lubricating oil.

A.) Reduce Friction B.) Dampen Shock C.) Protect parts from corrosion D.) Sealing E.) Cooling F.) Cleaning

Name the two stages of the dry sump oil pump.

A.) Feed Pump B.) Scavenge

What are the two functions of a shift detent?

A.) Helps transmission go in to gear B.) Helps transmission stay in to gear

Three attributes of a bushing?

A.) Capable of high loads. B.) Uses grease on chassis application. C.) Requiress constant lubcrication when used on transmission and engine applications.

Multi-layer design with soft metals to absorb small particles.

Embedability

Two Types of Shift Mechanisms.

A.) Drum B.) Cam Plate

What mus be done to the fuel tank because of Boyle's Law.

Must be vented.

What are the three purposes of the motorcycle transmission?

Change speed of Motorcycle at a given RPM. Change mechanical advantage Keep engine rom within usable powerband

How do you identify an "M1" in and indirect-drive transmission?

Smallest gear on mainshaft

Name and describe the six engine oil additives.

A.) Viscosity Modifiers-bridges gap between multigrade oils and determines reaction to changes in temperature, pressure, or speed. B.) Anti-Foam C.) Friction Modifiers-coats sliding surfaces to reduce friction. D.) Detergents-helps reduce deposits. E.) Antioxidant-helps keeps rings free and combustion chamber cleared. F.) Shock & Sheer Protectants-creates a cushion for parts.

Physical property of lube and indication of oil flowability at a certan temperature.

Viscosity

Purpose of using grease?

Designed to lubricate in an are where a liquid lubricant may splatter.

Why is higher Air/Fuel micture needed for cold start?

Cold engine offers less opportunity to vaporize fuel.

Uses controlled lab engines to rate.

Octance rating system

Theoretical perfect combustion ratio of air/fuel in gasoline. (Stoichiometric)

14.7:1

Largest gear on the countershaf of most transmissions is....

State that requires te fuel tank to be vented in to a charcoal canister:

California

What are the protrusions on the side of the gears called?

Slots or dog locks

Fuels resistance to detonation

Octane

Two reasons why a motorcycle may have a fuel pump:

A.) Tank too low to provide adequate pressure to the carburetors. B.) Part of a Fuel Injection System

Air/Fuel ratio of 16:1 is ____ than stoichiometric?

Leaner

Differences in wet and dry sump lubrication systems.

Wet sump oil is stored at crankcase bottom Dry sump stores oil externally from the engine

What are the three types of shift linkages?

A.) Claw, Hook, and Pin B.) Floating PLate C.) Ratchet

Name and define two basic types of transmissions used in motorcycles.

Indirect Drive: power flow enters one axis, leaves on other. Direct drive: power flow enters/leaves same axis.

Five types of rolling element bearings.

A.) Ball Bearing B.) Needle Bearings C.) Roller Bearings D.)Tapered Bearings E.) Thrust Bearings

Three Types of Fuel Pumps:

A.) Mechanical B.) Electrical C.) Vacuum

Axial Thrust Loads

Along the shaft.

Cruising speeds Air/Fuel mixture _______ and why?

13-14:1 Small throlle opening combined with moderate RPM results in good intake and fuel usage.

Four fuel valve types:

A.) Manual B.) Vacuum C.) Electrical D.) Vacuum W/ Electrical Assistance

Two attributes of shims:

A.) Control Axial Load. B.) Controls end play and provides spacing.

The types of damages we should look for when inspecting shift forks.

A.) Burnt B.) Bent C.) Broken

Three types of Oil Filters

A.) Internal B.) External Screw On C.) Centrifugal

Three types of final drives used on motorcycles

A.) Chain B.) Belt C.) Shaft

Three most common oxygenates used in oxygenated fuels.

A.) Ethanol B.) Methanol C.) MTBE

Idle requires an Air/Fuel mixture of _____ and why?

12-14:1 Low intake speed a udle results in reduced atomization.