Custom/Hybrid Rebuilding A/M mikunis (Riva 48mm Power bombs) pump question.

[Christian_83]

Hey guys
Im about to rebuild 2 Riva 48mm power bombs and im not sure with gasket to use in the pump body (or with diagram to follow)
http://www.jet-world.net/partsacc/carbsintake.asp or the mikuni sbn manual.
The 44/46 uses the normal gasket in the pump body and NOT the oring type.
The 38 and late 44 uses the Oring type.
Im a litlle confused wich to go with in the 48mm Riva Power bombs, ( i gues the started life a 44 or 46sbns?)
Can anyone give me a advice?
Thanks Christian

 

[Matt_E]

I'm pretty sure they all use the same pump section, with o-ring.

 

[Christian_83]

Okai, thats allso what i did. But if anyone knows that this is wrong. please chime in

 

[JetManiac]

Hey guys
Im about to rebuild 2 Riva 48mm power bombs and im not sure with gasket to use in the pump body (or with diagram to follow)
http://www.jet-world.net/partsacc/carbsintake.asp or the mikuni sbn manual.
The 44/46 uses the normal gasket in the pump body and NOT the oring type.
The 38 and late 44 uses the Oring type.
Im a litlle confused wich to go with in the 48mm Riva Power bombs, ( i gues the started life a 44 or 46sbns?)
Can anyone give me a advice?
Thanks Christian

Just use sequence as they come apart. Yes, they started life as 46sbns.

 

[Christian_83]

Yeah, they are rebuild as they were before. But thats no gaurantee that the guy before me, rebuild them correctly?