Identifying genuine Mikuni jets

[FakeName]

I have the stock pipe on my blaster but I want to remove the airbox lid/snorkel.

I stopped by the local Yamaha dealer to pick up a few main jets...I bought a 240/250/260. The guy at the parts counter assured me these are genuine Mikuni jets, but I’m concerned that there are no Mikuni markings. The jets are stamped “AB240, 250RB, and 260RB”.

Should real Mikuni jets have logos, or are these genuine jets?
Thanks

 

[Larry's Shee]

Generally speaking you'd think they'd only carry genuine.
Tried googling it. No go. Anyhow it's a little square with something in the middle.

 

[FakeName]

These jets most definitely do not have any other markings. I didn’t give it too much thought because I assumed a dealer would only stock the real thing. I’ve googled it every which way I can think of and can’t really find anything definitive. However I’m leaning toward these being fake.

 

[Larry's Shee]

If I get a chance, and I remember, I'll look . Getting ready for deer hunting

 

[FakeName]

I did enough googling and finally found that these are NOT genuine Mikuni jets. The “RD” marked jets are manufactured by EBC brakes. Weird. Supposedly these are just as good as the real deal but I’m still skeptical.

 

[Larry's Shee]

While EBC does make good brakes and clutches. I might think twice.
But if you understand that plug chop is plug you should be fine.

I'd still complain to the dealership