jet size style

[modsrx]

is it ok to run those type of jet ...large round vs the small rounds are they the same size jet if they have the same number

 

[snowdad4]

threads are different, wont interchange.

 

[modsrx]

they are the same I got them they fit there im not sure if they size stamp on them equal the small rounds one...maybe they are aftermarket one that I got im just afraid about the stamp size of them

 

[snowdad4]

interesting. hex and round dont interchange for sure. always thought the different heads had different threads.

info from mikuni perhaps as to the difference? someone else will chime in hopefully.

 

[chris700readhead]

Don't the large rounds interfere with the plastic piece around the jet.

 

[Hammer Down]

I have the large round on vmax4 and the plastic pieces still fit.

 

[mrviper700]

it was always my understanding the large head were the atv jets and smallhead were the sled jets. I imagine the orfice size is still whatever its marked at. It wouldnt scare me to use the yamaha jets, I am unsure if I would try it with aftermarket ones.

As cheap as the right ones are, not something I would try and save a couple pennys on to try,but they might be fine???.....

 

[modsrx]

it was always my understanding the large head were the atv jets and smallhead were the sled jets. I imagine the orfice size is still whatever its marked at. It wouldnt scare me to use the yamaha jets, I am unsure if I would try it with aftermarket ones.

As cheap as the right ones are, not something I would try and save a couple pennys on to try,but they might be fine???.....

im pretty sure they are aftermarket ..I will not take a chance to make a bomb

 

[YAMMIEGOD3:16]

I have used jets 2-3-4 in the yamaha carbs with no issues. That first jet is the hex seen alot in the older carbs. There is a huge difference in price also. 3:16 (yammie tony)