Saturday 2 May 2015

Cagiva Mito 125 fuel system , no fuel problems




Cagiva Mito 125 fuel system , no fuel problems



Just thought id do a post on the fuelling side of  Cagiva mito 125 


It a pretty simple system using the Carburettor , Reeds .


Fuel System consists of


-Fuel Tank

-Fuel Tank Tap - inc built in Fuel filter

-hoses which sometimes have a fuel filter added

-Carburettor which meters the fuel via specifically sized jets

-Inlet manifold

- Reed valves





Carbs fitted to the Cagiva Mito in the Past are the



Cagiva Mito 125 fuel system , no fuel problems



Mikuni 35mm  TM35    early model unrestricted models pre
 emissions regulations

MIKUNI TM35MM

Mito Evo racing '95 original settings Mikuni tm35:

throttle slide 5.5

jet-needle 6AEL4-60, 4th clip from below, 2th from top

pilot jet 45

main jet 310

air screw 1.5 turns from closed



Mikuni tm35-1 'aftermarket' setting:


throttle slide 6.0

jet-needle 6EN11-53, 3th clip

pilot jet 20

main jet  350




Cagiva Mito 125 fuel system , no fuel problems


Dellorto PHBH 28BD and 28RD 

RD jetting

to update soon 

BD jetting 


standard 

115 main jet

55 idle jet

55 diffuser jet

rejet to these after you derestrict

120 main jet

60 idle jet

60 diffuser jet



Servicing the fuel system - check over .


Servicing the fuel system - check over . 

-Clean out the air filter as well , and re-oil prior to fitting  ( not strictly fuel but important ) 
- Check inside the tank for any debris , water etc - make sure any breather holes for the tank are clear and able to breath in air ( this could restrict fuel flow )
 - Check and clean the internal tank tap filter - After refitting check for leaks and refit hoses making sure all hoses are tightly fitted and no leaks and no splits or damage to pipes . - make sure fuel pipe is of adequate diameter and construction so as not to obstruct fuel flow . - fit and inline fuel filter if needed .
 - There is also a small filter on the carb , behind the inlet connection clean this as well . - if the bike is running badly or will not start very well , then clean the carb out thoroughly 
- Make sure all jets are correct sizes and set you float height correctly and clean the float valve and hole out as well while you there .
 - Check the inlet manifold for cranks and correct fitment , any leakage here will affect the running of the bike and possibly cause a non start issue . 

- check the reed valves hold the reeds up to a light source and you should not see much if any light source through them if you can its a sign of wear and will affect the running . 

Here is a photo of the internal fuel filter and it clearly shows the fuel filter on the end of the internal tank fuel pipe , its worth stripping the tank tap down and cleaning out internally if problems persist . 

No fuel: pipes on carb correct empty tank  ?? not taking piss but if you do not have at least third of a tank it could be too low . 

Fuel tank lock vent blocked Fuel tap off Fuel tap blocked Fuel line blocked , corroded Float valve seized fuel filter blockage fuel filter at carb blocked






see our trouble shooting post here 





Cagiva  fuel taps
Cagiva Mito 125 fuel system , no fuel problems






The carb inlet filter is fitted behind the inlet connection pipe pull it

 out and clean it as this could cause a

restriction in the fuel line
Cagiva Mito 125 fuel system , no fuel problems



Cagiva mito reed valves 

Cagiva Mito 125 fuel system , no fuel problems

Cagiva Mito 125 fuel system , no fuel problems


Obviously check for broken petals , correct fitting , and also check

for signs of warping  are below.

Cagiva Mito 125 fuel system , no fuel problems




You could just dump it all in your ultrasonic cleaner , get one they

 are excellent 


Cagiva Mito 125 fuel system , no fuel problems

 







see more cagiva mito 125 posts here 


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