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last update 23.10.2012 

CARBURETTOR DIAPHRAGM 
 

To  work  correctly  the  carburettor  diaphragms  should  be  maintained  in  a 
sealed  wet  state.  After  numerous  hours  of  operation  of  or  where  it  is 
believed  that  the  diaphragms  have  been  in  a  dry  carburretor  a  substantial 
period  –  it  is  recommended  that  a  diaphragm  repair  kit  M10V5  or  full  kit 
M10V5K be installed to ensure optimum performance. Contact your dealer if 
in doubt. After long period of inactivity it is possible that the diaphragm has 
dried  out  due  to  fuel  evaporation,  this  in  itself  is  enough  reason  alone  to 
change the diaphragms. 
 
The  replacement  of  the  diaphragm  is  recommended  annually.  As  with  all 
things  -  they  wear.  Associated  with wear of  the  diaphragm  is  a  decrease  in 
pump  performance,  which  is  turn  effects  fuel  mixture  ratio.  The  failure  to 
replace  the  diaphragm  will  cause  a  degrading  of  pump  performance,  and  a 
leaning out of the mixture ratio, resulting in possible engine seizure. 
 
Changes to the mixture setting may also be necessary due to season changes 
/ altitude variation (+ -500 m from previous location). This may be performed 
by  persons  comfortable  with  the  function  of  the  engines  operation  or 
alternatively by you dealer. 
 
 

 

Summary of Contents for TOP 80

Page 1: ...ASSEMBLY AND MAINTENANCE MANUAL NIRVANA KIT TOP80...

Page 2: ...ER S MANUAL ENGINE Content CARBURATION 3 CARBURETTOR 3 CARBURETTOR DIAPHRAGM 4 SYMPTOMS OF A RICH OR A LEAN FUEL MIXTURE ADJUSTMENT SCREWS5 VALBRO 5 TROUBLESHOOTING 8 RUNNING IN 8 THE KIT ASSEMBLY 10...

Page 3: ...y cause more problems that cure Engine RICH MIXTURE will cause excessive fuel consumption and engine vibration Engine LEAN MIXTURE will cause the motor to run hotter than normal and may under severe c...

Page 4: ...out due to fuel evaporation this in itself is enough reason alone to change the diaphragms The replacement of the diaphragm is recommended annually As with all things they wear Associated with wear o...

Page 5: ...to idle for 2 3 minutes engine loads up with excessively wet rich mixture and dies Fuel pools at the bottom of the engine cases when accelerating the enginein this state you will get a rumbling sound...

Page 6: ...arburetor will open the butterfly valve inside the carburettor increasing the engines idle speed Screw C is the high RPM fuel mixture screw and is responsible for engine fuel mixture at engines speeds...

Page 7: ...butor shop The height of the lever upon which the spring acts is also critical and should be 0 5 0 7 mm above the body of the carburettor The adjustment of the fuel lever and fuel spring is a very del...

Page 8: ...epeated revvings are unsuitable the clutch may be surcharged After each switching off do carefully check all the mechanic parts bolts and knots After at least 10 minutes of work you can fly gently avo...

Page 9: ...ing it is advisable to check the head screws to verify the seal of the motor head see locking torques Usually a loss of seal can be perceived by dull strokes at starting or by oil leakage once the air...

Page 10: ...10 last update 23 10 2012 THE KIT ASSEMBLY 1 Skeleton TOP 80 2 Engine TOP 80 3 Unscrew matrix and put the glue 4 Put on the engine 5 Tighten 4 screws into the silent blocks 6...

Page 11: ...11 last update 23 10 2012 7 Put these plugs into these 2 holes 8 Connect the fuel hose 9 10 11 Unscrew the rod of choke 12...

Page 12: ...12 last update 23 10 2012 13 Screw the choke into the holder 14 Put the glue 15 Screw the rod of choke 16 Dismount screws 17 Tight and glue screws to fix the exhaust 18...

Page 13: ...13 last update 23 10 2012 19 20 21 Thread through and assure the wire 22 Put the washer on the spark plug 23 Screw the spark plug 24 Connect the spark plug...

Page 14: ...14 last update 23 10 2012 25 Put the airbox 26 Screw and assure the airbox 27 28 29 30...

Page 15: ...15 last update 23 10 2012 31 32...

Page 16: ...16 last update 23 10 2012 THE FRAME ASSEMBLY The process of the frame assembling is showed step by step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step...

Page 17: ...17 last update 23 10 2012 7 Step 8 Step 9 Step 10 Step 11 Step 12 Step...

Page 18: ...18 last update 23 10 2012 13 Step 14 Step 15 Step 16 Step 17 Step 18 Step...

Page 19: ...19 last update 23 10 2012 19 Step 20 Step 21 Step 22 Step 23 Step 24 Step...

Page 20: ...20 last update 23 10 2012 25 Step 26 Step 27 Step 28 Step 29 Step 30 Step...

Page 21: ...21 last update 23 10 2012 31 Step 32 Step 33 Step...

Page 22: ...aused by falls The warranty ceases if the PPG is sold to the third person or in case of incorrect use unprofessional repair or installation of unoriginal parts The guarantee is valid when dated and si...

Page 23: ...23 last update 23 10 2012 NIRVANA SYSTEMS s r o Jatecni 523 760 01 Zlin Czech Republic tel 420 577 226 616 fax 420 577 019 117 sms 420 775 917 001 e mail info nirvana cz http www nirvana cz...

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