Panthera PM07-18 Manuale utente

Property of Panthera® Motorsports inc

Panthera engine owner manual

PM07-18

Read this manual carefully it contains important information.

Property of Panthera® Motorsports inc

Introduction

This manual was produced by Panthera° Motorsports inc. and describes operation procedure and

service procedure of the PM07-18 engine.

We recommend that your read this manual before installing and using your Panthera engine. The

manual contains a detailed list of topics in the table of contents.

Follow the Maintenance schedule recommendation to ensure the engine is always in peak operating

condition.

This publication includes the latest production information available before printing. Panthera

Motorsports reserves the right to male changes at any time without notice and without incurring any

obligation.

Disclaimer

This engine is sold as is, with all faults, obvious or concealed and there are NO WARRANTIES expressed

or implied. Including warranties of merchantability or fitness for purpose.

The purchaser accepts all responsibilities concerning quality, performance, cost of service and/or

necessary repairs.

This engine is a competition engine only. The use of this engine should be limited to participation in

sanctioned competition event upon a closed course.

Read owner’s manual.

3 
Property of Panthera® Motorsports inc 
Contents 
Introduction................................................................................................................................................ 2 
Disclaimer ................................................................................................................................................... 2 
Safety.......................................................................................................................................................... 4 
Basic operation ........................................................................................................................................... 5 
Pre-ride inspection.................................................................................................................................. 5 
Starting procedure.................................................................................................................................. 5 
Electric start engine ............................................................................................................................ 5 
Kick start engine.................................................................................................................................. 5 
Flooded engine ....................................................................................................................................... 6 
Electric start engine ............................................................................................................................ 6 
Kick start engine.................................................................................................................................. 6 
Stopping procedure/stop switch wiring.................................................................................................. 6 
Shifting gear............................................................................................................................................ 6 
Race maintenance schedule ....................................................................................................................... 7 
Taking care of the unexpected.................................................................................................................... 8 
If the engine won’t start ......................................................................................................................... 8 
High coolant temperature....................................................................................................................... 8 
Technical information................................................................................................................................. 9 
Engine specs ........................................................................................................................................... 9 
Fuel and lubricants.................................................................................................................................. 9 
Torque specifications............................................................................................................................ 10 
Altitude/temperature carburetor adjustment ...................................................................................... 11 
 
 

Property of Panthera® Motorsports inc

Safety

Always ride within your limits. Major cause of motorsport crashes comes from riding beyond your

personal abilities. Alcohol, drugs, fatigue and inattention can significantly reduce your ability to make

good judgement and ride safely.

Alcohol and riding don’t mix. Even one drink can reduce your ability to respond to changing condition

and your reaction time gets worse with every additional drink.

Keep your vehicle properly maintained and in safe riding condition. To help avoid problem, inspect your

vehicle before every ride and perform all recommended maintenance.

Property of Panthera® Motorsports inc

Basic operation

Pre-ride inspection

Transmission oil

Check the level and add oil if needed

Check for leaks

Radiator coolant

Check the coolant level and add coolant if needed

Check for leaks

Fuel

Check the level and add fuel if needed. Also make sure the fuel fill cap is

securely fastened.

Check for leaks

Throttle

Check for throttle freeplay and adjust if needed. Press the throttle to

make sure it moves smoothly without sticking and snaps shut

automatically when it is released.

Clutch actuator

Check for smooth operation and adjust freeplay

Kill switch

Check for proper function

Starting procedure

Electric start engine

1. Turn the fuel valve on and ignition switch on

2. Confirm the transmission is in neutral

3. Confirm the engine stop switch is set to RUN

4. Pull the choke know up all the way to ON position if the engine is cold.

5. With the throttle closed, press start button

a. Pressing the electric start button for more than 5 seconds at a time may cause the

starter to overheat and damage the starter. Release the start button for approximately

10 seconds before pressing it again.

6. After the engine start, push the choke knob back to OFF position to keep fast idling.

7. If idling is unstable, open the throttle slightly.

Kick start engine

1. Turn the fuel valve on and ignition switch on

2. Confirm the transmission is in neutral

3. Confirm the engine stop switch is set to RUN

4. Pull the choke know up all the way to ON position if the engine is cold.

5. Lightly depress the kickstarter until resistance is felt. You will feel two resistance close to

another then a long free play. Stop right before the first of the two resistance. (Before TDC)

6. After the engine start, push the choke knob back to OFF position to keep fast idling.

7. If idling is unstable, open the throttle slightly.

High air temperature 30°C (86°F): Do not use the choke.

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Flooded engine

If the engine fails to start after repeated attempts, it may be flooded with excess fuel. To clear a flooded

engine:

Electric start engine

1. Put the engine stop witch at off.

2. Push the choke know at OFF

3. Open the throttle fully

4. Press the start button for 5 seconds.

5. Wait 10 seconds, then turn the engine stop switch to RUN.

6. Repeat the electric start engine normal starting procedure.

Kick start engine

1. Put the engine stop witch at off.

2. Push the choke know at OFF

3. Open the throttle fully

4. Repeat kick start operation approximately 10 times to discharge excessive fuel from the engine.

5. Repeat the kick start engine normal starting procedure.

If the engine still won’t start, refer to the ‘’If your engine quit or won’t star’’ page.

Stopping procedure/stop switch wiring

Engine stopping signal must be sent to the black wire of the CDI unit. (refer to wiring diagram)

The black wire must be sent to engine ground in order to stop the ignition spark.

Shifting gear

The shift lever is located on the left side of the engine. One full stroke of the shift lever shifts the

transmission to the next higher or lower gear in the shifting sequence. The shift lever automatically

returns to the horizontal position when released.

PM07-18 engine as six forward gears (1,2,3,4,5 and 6). To upshift, raise the shift lever a full stroke. To

downshift, depress the shift lever a full stroke.

Neutral is located between 1st and 2nd gear. To put engine in neutral, softly half stroke the shift lever

from 1st going to 2nd or from second going to 1st.

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Race maintenance schedule

I : Inspect

C : Clean

R : Replace

ITEM / FREQUENCY

Initial

maintenance

Each race or

about 2.5 hours

Every 4 races or

about 10 hours

Every 9 races or

about 22.5 hours

Throttle operation

Air filter

Spark plug

Radiator coolant

Flush after 1st

ride

Transmission oil

Flush after 1st

ride

Piston and rings

Piston pin and small

end bearing

Head o-rings

Head carbonizing

Balancer bearings

Clutch plates

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Taking care of the unexpected

If the engine won’t start

SYMPTOM: Starter motor doesn’t operate (e-start motor only)

POSSILE CAUSE

WHAT TO DO

Ignition switch OFF

Turn the ignition switch ON

Blown fuse

Replace with a new fuse of the same rating

Battery lead loose

Tighten the battery lead

Low (or dead) battery

Charge the battery. If charging doesn’t help, get the battery tested.

Faulty starter motor

If all causes are negative, the starter motor may be faulty. Replace

the starter motor.

SYMPTOM: Starter motor works, engine won’t start

POSSILE CAUSE

WHAT TO DO

Ignition switch OFF

Turn the ignition switch ON

Out of fuel

Fill the tank and make sure the fuel petcock is open

Flooded engine

See flooded engine page 6

Loose or unconnected spark

plug cap

Install the spark plug cap securely

Unplugged coil signal wire.

Reconnect the signal wire to the ignition coil.

Faulty stator

See stator inspection procedure. Replace the stator if faulty

Faulty stator

See stator inspection procedure. Replace the stator if faulty

High coolant temperature

-A steaming engine indicates a coolant leak. Shut the engine off and way until the steaming

stops. Look for a leak, but don’t touch the engine or radiator system. Let everything cool off

first.

-Check for any restriction of air flow through the radiator.

-If the reserve thank is low or empty, don’t ride without adding coolant.

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Technical information

Engine specs

Displacement

548 cc

Bore & Stroke

94.0 x 79.0

Compression ratio

12:1

Spark plug

BR8ES

Spark plug gap

0.56-0.64mm

Idle speed

1500 ± 100 rpm

Primary reduction

2.11

Gear ratio

1st

2.87

2nd

1.81

3rd

1.5

4th

1.25

5th

1.05

6th

0.88

Fuel and lubricants

Fuel recommendation

Unleaded fuel, 94 octane or higher

Fuel oil recommendation

Motul 800 2T

Fuel oil mixing ratio

40:1

Transmission oil capacity

1.8 L at disassembly

1.5 L at oil change

Transmission oil recommendation

Klotz flex drive 30

Cooling system recommendation

High quality ethylene glycol antifreeze containing

corrosion protection inhibitors specifically

recommended for use in aluminium engines.

Property of Panthera® Motorsports inc

Torque specifications

Item

Thread dia x pitch (mm)

Torque Nm (ft-lb)

Generic

5 mm nut and bolt

5 (3.6)

6 mm nut and bolt

12 (9)

8 mm nut and bolt

22 (16)

10 mm nut and bolt

35 (25)

5 mm bolt

4 (2.9)

6 mm bolt

10.5 (7.5)

8 mm bolt

12 (9)

Maintenance

Oil check bolt

8 x 1.25

12 (9)

Oil drain bolt

12 x 1.5

30 (22)

Cooling system

Coolant drain bolt

6 x 1.0

10 (7)

Water pump cover bolt

6 x 1.0

12 (9)

Water pump impeller

6 x 1.0

12 (9)

Cylinder Head/ Cylindre

Spark plug

14 x 1.25

18 (13)

Cylinder head nut

8 x 1.25

27 (20)

Cylinder mounting nut

10 x 1.25

40 (29)

Cylinder stud bolt

10 x 1.25

12 (9)

Decompressor

10 X 1.0

27 (20)

Clutch/transmission

Clutch spring bolt

6 x 1.0

10 (7.2)

Clutch center lock

20 x 1.0

90 (65)

Primary gear bolt

12 x 1.25

70 (50)

Drum shifter set plate bolt

6 x 1.0

10 (7)

Balancer nut

16 x 1.0

70 (50)

Sprocket bolt

8 x 1.25

27 (20)

Kick start lever

8 x 1.25

27 (20)

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