HE PARAMOTORES MVL 125 Manuale utente

USER’S MANUAL MVL ENGINE 2019

USER’S MANUAL MVL ENGINE

C/ Estaño –Nº56

28510 Campo Real

Madrid –España

Mobile: +34 666 45 44 08

Phone: +34 918 73 88 35

Fax: +34 918 738691

E-mail: [email protected]

USER’S MANUAL MVL ENGINE 2019

INDEX



INTRODUCTION & IDENTIFICATION

OF THE OWNER



TECHNICAL AND STRUCTURAL

FEATURES



MAIN TORQUES

4 - 5



ASSEMBLY / ADJUSTMENT/FUEL

CARBURETOR

5 - 7



RUNNING IN



MAINTENANCE

8 - 10



TENSION OF REDUCTION BELT /

IGNITION

9 - 10



WARRANTY

10 - 11



TROUBLE SHOOTING



IMPORTANT ADVICE



PROPELLER FITTING



HOW TO START THE ENGINE



NOTES

11 - 12

14 - 15

USER’S MANUAL MVL ENGINE 2019



INTRODUCTION

Thank you for choosing the MVL engine. We invite you to spend some time

reading the user’s manual which will help you discover all the features of

your engine. Advices on maintenance and operation will help you to have a

reliable engine and to preserve your investment. Furthermore, we invite

you to deliver this manual together with the engine if you sell it, so it can be

useful for the next owner as well. The manufacturer and the resellers are

ready to answer your questions and, if necessary, to solve every problem,

because OUR CUSTOMERS SAFETY IS THE MOST IMPORTANT THING

FOR US.

IDENTIFICATION OF THE OWNER

Serial number: Owner’s name & address:

Owner’s signature Reseller’s signature Date of sale

USER’S MANUAL MVL ENGINE 2019



MVL 125cc WITH CENTRIFUGAL CLUTCH

oENGINE2 - stroke single cylinder

oCOOLING - Extraction from propeller

oCYLINDER CAPACITY - 125 cm3 (54×54)

oCYLINDER - Aluminium Nikasil coated

oCARBURETOR - Walbro WG8

oPOWER - 23 HP / 9.580 R.P.M.

oIGNITION - Electric ignition coil

oTRANSMISSION - Poly V belt driven with centrifugal clutch

oRATIO 1: 3, 65

oSTARTER - Manual pull starter / FLASH OR ELECTRIC STARTER

AVAILABLE

oFUEL - Unleaded gasoline + synthetic oil 2,5 %

oWEIGHT - 14 Kg. complete

oTHRUST - 73 Kg.

oCYLINDER HEAD TEMPERATURE - MAX TEMPERATURE 250°C

oEXHAUST GAS TEMPERATURE NOT EXCEEDING 590 C°

oENGINE MOUNTING - BY 4 SHOCK ABSORBING RUBBER

MOUNTS

oROTATION –COUNTERCLOCKWISE

oSEAL RING - IN VITON WITH VERY HIGH RESISTANCE

oOIL - 2,2% TOP QUALITY OIL 100/100 SYNTHETIC



MAIN TORQUES

oKg. m(Nm)

oNUTS TO FIX THE HEAD1,6 - 16 RETIGHTEN AFTER 1ST HOUR

oNUTS TO FIX HALF-CRANKCASE 1,6 -16

oNUTS TO FIX THE CLUTCH 3,5 - 35

oNUTS TO FIX BACK PART OF DRIVE SHAFT TO IGNITION FLYWHEEL 2,5 -

oGAP BETWEEN COIL AND FLYWHEEL 0,5 mm

USER’S MANUAL MVL ENGINE 2019

oIT IS VERY IMPORTANT TO RETIGHTEN THE CYLINDER HEAD NUTS AFTER

THE 1ST HOUR OF FLIGHT!



ASSEMBLY:

You can install the engine on the frame by using 4 rubber mounts of 30 mm.

To attach the propeller use only bolts of class 10/8 (100 Kg) and make sure that their

length is enough to exit from the reductor-pulley. Tighten the 6 bolts M8 in a cross, at

1.5 /2.0 Kg.m.(15/20 Nm). Re-check the torque of the bolts after the first hour of

engine’s working.

For the connection between the carburetor and the fuel tank use a proper hose of the

right diameter. The length of the fuel line must not be more than 80 cm.

IMPORTANT NOTES

DO NOT try to start the engine without the propeller. DO NOT start the engine with

loose bolts or parts, since this can cause the detaching of the propeller, the ovalization

of the propeller holes, and the damage of the rubber mounts.

IMPORTANT! BEFORE FLYING CHECK ALWAYS EVERY PART OF YOUR CRAFT,

FROM ENGINE TO FRAME. Verify that there are no damaged electric wires, that there

are no leaks from hoses, tank, carburetor or engine’s crankcase, that the propeller is not

damaged or loose, that the exhaust-pipe has no cracks, that the frame is not bent or

broken because of falls, that rubber mounts are not cracked, that the reduction belt is

not loose and every bolt is tight. Finally you can start the engine, leaving it to warm up

at a speed of 2.200 to 3.000 rpm with head temperature at least 100 °C.

USER’S MANUAL MVL ENGINE 2019



FUEL

Use for the mixture only premium gas for cars 98 octane, together with good-quality,

synthetic oil for mixtures at a quantity of 2,5% (DO NOT USE MIXTURE ALREADY

DONE AT PETROL PUMPS).

When you prepare the mixture, make sure that the can has not dirt or water in it, put

always the oil first and mix thoroughly. Never run the engine without the air-filter,

because dirt and dust raised by the propeller can damage it.

USER’S MANUAL MVL ENGINE 2019



ADJUSTMENT OF THE CARBURETTOR

The carburettor has one adjustment screw for the high rpm.

CARBURETOR SETTINGS

MVL ENGINE

H screw

1 hour + 20/30 minutes

This is the standard carb. set up we suggest, as engine manufacturer, of course any

carburator should be adjusted in base of weather conditions and flight altitudes.

WARNING: THE FOLLOWING OPERATION HAS TO BE DONE WHEN THE ENGINE IS

HOT.

For regulating the fuel flows, play gently with lever # 1 opening it in case you need to

make the engine running richer, and viceversa closing it in case you have to run the

engine a little bit lean.

Lever # 2 is used for adjusting the mechanical idle, that we suggest to set up at

2500/2600 RPM.

# 1

Lever #3 controls the choke #

2 and must be kept open

USER’S MANUAL MVL ENGINE 2019



RUNNING-IN

All the engines PARAMOTORES HE have a quality control before being delivered in

order to verify if all the components related to the fixed parameters, but a further

running-in is still necessary.

A CORRECT RUNNING-IN PROCESS WILL PROLONG THE LIFE OF YOUR

ENGINE!

Go to a quiet place, put a thick rubber carpet under your craft to avoid that stones

or other things damage the propeller by putting it on earth and let the engine work

at a speed of 2500 rpm for 5 minutes, then regulate speed at 3000/3500 rpm for

15 minutes, then at 4000 rpm for other 15 minutes.

Switch off the engine and check that there are no loose nuts or bolts and that

every component is ok.

DO NOT TOUCH THE HOT PARTS! (POWER UNIT AND EXHAUST PIPE).

Start the engine again and take it step by step to 4000 rpm for 5 minutes, then

accelerate to 4500 rpm for 15 minutes.

During the first 10 hours, do not subject the engine to extreme efforts and speed.

Also during normal use excessive loads (ex. tandems with passenger) can force

the engine with possible damages to the engine itself.

ALWAYS CHECK at sight your craft before and after every flight, for loose parts

or damage.

During the run-in period vary the power often for a proper piston ring setting.



MAINTENANCE

oAFTER THE FIRST HOUR OF RUNNING, CHECK THE BELT TENSIONING

AND TIGHTEN IT IF NEEDED.

oAFTER THE FIRST 2 HOURS, TIGHTEN HEAD NUTS (IN CROSS ORDER)

WITH A TORQUE WRENCH AT 1.6 Kg.m (16Nm).

oAFTER THE FIRST 3 HOURS OF ENGINE RUNNING MAKE A NEW BELT

CHECK UP AND IN CASE RETENSIONING IT AT 350 HRZ

Every 20 hours:

oCheck the condition and gap (0.7 mm) of the spark plug

USER’S MANUAL MVL ENGINE 2019

oClean the air-filter, the carburettor filter placed at the end of the fuel

pipe and the filter of the fuel tank

oCheck the torque of every bolt

oCheck the tension and condition of the reduction belt

oCheck fuel lines and wiring

oCheck that the cord of the starter has no abrasions.

Every 50 hours

oSame controls of the 20 hours and furthermore:

oCheck the torque of the engine’s crankcase nuts

oChange spark plugs

oChange the petals of the reed valve

oCheck the reduction belt and the play of pulley bearings, change them

in case of need

oCheck the conditions of the starter gears (version with electric start)

oOnce a year (independently from flight hours) change the diaphragm of

the carburettor.

oN.B. It is advisable to keep records of all maintenance in a log book for

the engine.

It is also advisable to install an instrument (CHT) to control the head

temperature at sight.



TENSION OF THE REDUCTION BELTDRIVE –USE

CAUTION

Attention:abeltwhichisovertensioned candopermanentdamageto

bearings of pulley anddrive shaft.

Therefore we strongly suggest for you to follow carefully these

instructions.

Beforeadjustingthebelt takeafeltpenormarkerandmakeasmallsignonthecamshaft

andon the front of the reduction plate.

ThisisyourZeroorstartpointandfromhereyouwillbeabletoclearlyseehowmuch

youmove the eccentric tensioningcam in relationto thereductionplate.

Remember theseareFineadjustments andwesuggestnottorotatethecamanymore

USER’S MANUAL MVL ENGINE 2019

than1 mmperadjustment.Aftereachadjustmentyoucan try tostart theengineand

check theresult.

Iftheenginedoesnotstartwellthenitusuallymeansthebeltisstilltoolooseandis

slipping, in this case repeatthe operationbytensioningthe beltanother1 mm.

Consider that if the beltslips a little, butthe engine still startsfine, then the tension is

correct. Belt tension always increases automatically when the engine is running

because of thermal expansion in thepulleys.

Once you havefound thecorrect tension, donot adjust itanymore.Incaseofdoubts

please contact yourparamotordealer–ortheHE team.

To adjust the belt do the following:

oLoosenthecamofpulleyboltlocated,oncethisisloosenedthenyoucanturnthe

camwitha

n.27 mm size wrench - careful to observe the 1 mm increments.

oOnceyouhavefinishedturningthecamremembertore-tightenthesafetyboltsat

2,5kg.(25 Nm),firstthebackbolt,bykeepingfirmthecamwiththewrench,and

thenthesidebolt.



IGNITION

Incasethecoiland/orthehandwheelmustbechanged,itiscompulsorytoturntoyour

dealer or to trained personnel, even if this operation can appear simple at the first

sight,sincethetiming oftheengine,ifwrong,canchangetheperformanceandcause

damage to the engine. To check the timing: the distance between the coil and the

flywheelmagnetis0,4-0,5mm.



WARRANTY

Warranty includes spare parts and labor, transport excluded.

For any defective part, please contact your reference authorized dealer or HE

directly, so that you can get proper indications about how to handle it.

DURATION OF WARRANTY

1 YEAR beginning from the date of purchase from PARAMOTORES HE.

WARRANTY IS VOID IN THE FOLLOWING SITUATIONS:

Alterationsto the enginenotapprovedbyPARAMOTORESHE.

Wear & tear of components of the engine due to the instructions within

the product manual not being adhered to.

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