All Mikuni Jets the Same?

[gs7_11]

Specifically pilot jets. I'd have thought a #40 Mikuni pilot jet would be the same from one carb type to another.

I needed a couple of pilot jets for my BS34's and saw some on Eblag for the VM series. No problem, they'll be the same, I thinks. I fitted them without looking too closely; bike runs like a dog, too rich at idle and small throttle openings. Last thing I suspected was my brand new "Genuine" pilot jets.

Anyway, turns out the ones I bought are different...larger metering orifice, and the orifice is in a different place (half way along the jet rather than at the tip).

You live and learn.

[Gammaboy]

Nope, far from it.

Here's a great guide:

http://www.iwt.com.au/MikuniJets.htm

 

[gs7_11]

21 hours ago, Gammaboy said:

Nope, far from it.

Here's a great guide:

http://www.iwt.com.au/MikuniJets.htm

 

That's good thanks. I wanted BS and got VM!

It's the last thing you expect of the Japs. Now, British engineering is full of that kind of "4 possible options, all fit but only 1 is the right one, and only old Bert on line 4 knows which one it is, and if you fit the wrong one your crank seizes".