mikuni tm38 needle and seat question

[hydroboyv9]

Does anybody know off hand what the mikuni part number is for the needle and seat needed for the pro engines running pressure tanks?

Thanks
Brennen

[AndersonV21]

Loaded question...

But for your 250 w/full pressure, they are probably 2.5mm meaning you need to buy a 2.0mm, and drill/ream it out to 2.5mm. I would measure them first though.

Mikuni 786-46001- Needle and Seat Size 2.0

[Dan M]

Brennan,

Like Jay said, measure what you have. Dennis Kirk has many sizes available

https://www.denniskirk.com/search/mi....q/20.ipp/1.pg

but you may have to open one up to match what you have.

Dan

[1100-one]

Numbers

Brennon,
the part numbers your looking for are 786-46001 2.0. this is for the needle and seat assembly.

There are many places to buy them such as the 2 mentioned above.
There is also a great book that you can buy from Olav AAen that has great information on Mikuni Carbs for you and you can also buy parts from them as well.

Brennon - Bob T has this book Im talking about.

[hydroboyv9]

Thanks for the quick replies guys. I have always run a 2.4. I've always taken a 2.0 and drilled her out to a 2.4. Thanks again for the quick assistance.