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Operating instructions 

 

MVVS 80 IRS No: 3007L 

MVVS 80 IRS SP No: 3007SP 

MVVS 80 IRS TS No: 3007TS

 

 

 

 

 

Version 1.2 

 

Before using the engine, please read these instructions carefully. 

 

Congratulations on choosing the gas engine MVVS 80. 
MVVS 80 has been designed and manufactured for propeller-powered radio-controlled model 
planes. It is able to meet all of your expectations of an acrobatic racing engine.  
 
 

Technical specifications 

 

Bore 

48 mm 

RpM range 

1000 – 7500 RpM 

Stroke 

44 mm 

 

 

Weight of complete 
engine without ignition* 

2220 g 

Fuel 

Unleaded 95-octane fuel 

Weight of ignition unit  

190 g 

Lubrication 

Oil with petrol in mixture 1:40 

 
 

Safety precautions 

 
1)

 

Never use the engine for any manned vehicles. 

2)

 

When operating model planes, always follow the rules and laws in effect in your country.  

3)

 

The manufacturer declines all responsibility for all damages arising from the operation of 
models and other appliances droved by MVVS 80 engine. 

4)

 

Always use original spare parts. 

5)

 

Never tamper with the engine construction. 

6)

 

Before  each  flight  check  that  all  the  propeller  screws  are  tightened  up  and  in  good 
condition.  If  you  use  a  spinner,  check  that  it  is  tightened  up,  too.  When  mounting  the 
spinner always follow the assembly instructions. 

7)

 

Periodically check that the engine is firmly fixed to the engine mounts. Never start a loose 
engine! 

8)

 

Always use a balanced propeller! Always replace the propeller when damaged! 

9)

 

Make sure that no part of your body intersects the plane of the spinning propeller. 

10)

 

Always  wear  close-fitting,  well-fastened  clothes  when  starting  or  operating  the  running 
engine. Never wear loosely hanging clothes (ties, scarf, etc.). 

11)

 

Never try to stop the engine by any part of your body. 

12)

 

Always stop the engine either by turning off the ignition switch or by completely closing 
the carburetor throttle valve. 

13)

 

Before  starting  the  engine  always  make  sure  that  the  model  is  safely  fixed  in  place  and 
cannot start moving. 

14)

 

Fuel is combustible and therefore must be kept in an enclosed container at a safe distance 
from the engine when it is running.  

15)

 

When preparing fuel carefully follow the manufacturer’s or dealer’s instructions. 

16)

 

Small objects must be kept at a safe distance from the engine when it is running. Never 
throw any objects towards the spinning propeller. 

Summary of Contents for 80 IRS - V1.2

Page 1: ... the propeller screws are tightened up and in good condition If you use a spinner check that it is tightened up too When mounting the spinner always follow the assembly instructions 7 Periodically check that the engine is firmly fixed to the engine mounts Never start a loose engine 8 Always use a balanced propeller Always replace the propeller when damaged 9 Make sure that no part of your body int...

Page 2: ...pe of engine preferably brand name MVVS engines with which you also get the power output guaranteed The manufacturer declines all responsibility for all engine damages arising from the use of improper exhaust systems When mounting the exhaust follow the manufacturer s instructions Make sure to secure sufficient cooling of the exhaust Fuel Strictly use unleaded 95 octane petrol mixed in the proport...

Page 3: ...y another 3 5 min this should be done because the needle was previously set at a boundary value if atmospheric conditions changed during flight the problems might recur If the engine still has bad acceleration open the needle by 10 min If the engine s operation does not improve afterwards stop it and check the basic setting Set the adjusting needle L at 1 turn and 50 min and the adjusting needle H...

Page 4: ...or is not overflowing If it is overflowing only give the engine 1 2 turns 2 Switch the ignition on open the choke valve set the throttle at slightly higher idle speed and give the engine a few quickly turns If even after the fourth turn with the choke valve closed you do not hear a suggestion of the engine starting give the engine 2 turns following the instructions in paragraph 1 above Then procee...

Page 5: ...em with new ones screw the screws back in and tighten them gently when reassembling make sure you fix the gasket correctly Mechanical faults of the engine must always be commit to a professional service department Service information At the latest after 200 hours let the engine check by authorized service After each 20 hours of running change the spark plug and check the read valve After each 40 h...

Page 6: ...sket 3309 Spark plug 0701 Piston 3314L Electronic ignition unit 3007L 0702 Piston ring 3314S Electronic ignition unit 3007SP 0801 Piston pin 3227 Carburetor 0802 Piston pin retainer Warranty The MVVS gas engines come with a three year guarantee against defects in workmanship and materials Only original buyers of the engines are eligible warranty claimants The warranty cannot be transferred with a ...

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