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Jets, screw head or hex???

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Hi Folks, can anyone tell me if screw head & hex head jets are all interchangeable?

I say this because i want to go larger on the main jet on my 570 (mikuni) & i cant find screw head jets here anywhere, all the dealers seem to stock the hex head type, does it matter if i use these instead????

The dealers here tell me that 160 is the largest size that screw head main jets go up to, after that they are all hex types??????

:applause:

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That is complete GARBAGE! Mikuni has "Large round" and "small round" slot jets. I believe the Mikuni TMR uses large round. Both large and small round are available in sizes up to 200, way larger than you will need unless you're running alcohol!

Tell your dealer to open a catalog and order you what you want, not what they have.

Check this out :

http://www.sudco.com/mikunijets.html

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