New main jets

[Wally]

I order two one size down main jets. What has arrived is a physically smaller jet same thread size Can I still use these??
Thanks

[dicky]

If it's the same thread and the right ID hole then the smaller head size is the only problem. It does look a lot smaller.
Can you get it to seal against the o-ring? (assuming there is actually an o-ring, there should be)

[Wally]

http://www.showandgo.com.au
Go to micuni jets,, the one I've been sent is N102
The ones in my carbs are N100
It's 8 mm base to hold the brass clip that also holds in the other jet.. the n102 hold the clip in also??

[dandywarhol]

Mikuni sizes are measured by flow rate and most others size by dimension - no comparison

[Racer-unk]

I have been told the spray pattern is not the same for the N102, but it is not a train-smash.....also have them in.
I presume you talking about the "starter Jet" which holds the main jet in place? The Square-round rubber seal is under the Main jet which has no size markings.