hi there, does anybody know what the original carburretor was on the ossa gripper tr80 250cc (the orange one)?

And what would be a good replacement for them?

replys much appreciated

p.s does anybody do a manual for these bikes?

i think it was an amal concentric mk 2, i think you can still get them new. try surrey cycles.

Yes it was and yes you can sill get them, also from Miller and maybe Bultaco UK too.

Lots of info on this site, may also be able to download a manual (sort of) from there. Also keep an eye on ebay as Ossa manuals appear on there now and again.

Mats Nyberg Ossa

As an alternative carb you could use Mikuni, Dellorto etc. but you'll have to use trial and error for jetting as there isn't a spec sheet for jetting anything other than an Amal - unless someone is using one successfully and can provide the jetting info.

Yes it was and yes you can sill get them, also from Miller and maybe Bultaco UK too.

Lots of info on this site, may also be able to download a manual (sort of) from there. Also keep an eye on ebay as Ossa manuals appear on there now and again.

Mats Nyberg Ossa

As an alternative carb you could use Mikuni, Dellorto etc. but you'll have to use trial and error for jetting as there isn't a spec sheet for jetting anything other than an Amal - unless someone is using one successfully and can provide the jetting info.

thanks for the information

i think it was an amal concentric mk 2, i think you can still get them new. try surrey cycles.

A friend of mine bought a new Dellorto jetted for a Fantic 300 as a starting point and hasn't changed any of the settings. It seems to run fine.

A friend of mine bought a new Dellorto jetted for a Fantic 300 as a starting point and hasn't changed any of the settings. It seems to run fine.

Thanks for that, I was thinking of trying a dellorto myself on a MAR but wasn't sure of the jetting to ask for - have a starting point now.