5mm or 6mm jets in the Malossi 19mm Carb?

basilfawlty · Post by **basilfawlty** » Mon Jul 29, 2013 5:44 pm

Hi!

I've got a 19mm Malossi Dellorto carb and I don't know if it uses 5mm or 6mm jets. I've seen both sizes referenced online.

This is the one I have: http://www.scooterworks.com/malossi-car ... fapKtLVAd8

Does anyone know what the size is?

az_slynch · Post by **az_slynch** » Mon Jul 29, 2013 5:56 pm

It's a 6mm jet (#1486).

Look here for good availability on the jets.

If you're running a 70cc kit and a 19mm PBHG, I would consider jets from mid-80s to mid-90s, depending on your altitude.

(700).

basilfawlty · Post by **basilfawlty** » Mon Jul 29, 2013 9:26 pm

Great! Thanks for the help. I'll grab a kit that goes from 80-95.

az_slynch · Post by **az_slynch** » Tue Jul 30, 2013 6:03 am

Basil,

Check out the following site as well, it's a good primer for understanding the Dell'Orto PHBG and how to tune it:

How To Tune PHBG Carburetors

basilfawlty · Post by **basilfawlty** » Tue Jul 30, 2013 6:38 am

Wow, yes ... a wealth of information.

Thanks!

basilfawlty · Post by **basilfawlty** » Tue Jul 30, 2013 3:56 pm

az_slynch wrote:It's a 6mm jet (#1486).

Look here for good availability on the jets.

If you're running a 70cc kit and a 19mm PBHG, I would consider jets from mid-80s to mid-90s, depending on your altitude.

(700).

The scooter place I order stuff from tells me that they are 5mm jets. They are sending me this set. http://www.spmotostore.com/MAIN_JET_SET ... l5-002.htm

I'm just a bit concerned since I'm getting mixed messages.

az_slynch · Post by **az_slynch** » Tue Jul 30, 2013 4:16 pm

My bad, the #1486 is a 5mm jet, not a 6mm.

basilfawlty · Post by **basilfawlty** » Tue Jul 30, 2013 4:17 pm

Whew! Well, at least I'm getting the right ones.