Dynojet Question

[3hondas]

I have removed the 17mm bolt on the bottom of my carb to replace the dynojet 146 with a dynojet 170 to run with the airbox lid off.
My questions are:

1. do you take the dynojet main jet adapter out to do this?
or
2. do you unscrew the dynojet and screw in a new one while the dynojet adapter is in the carb?

if question 1 is correct, what size socket removes the dynojet main?

if question 2 is correct, can you do this with the carb on the bike?

thanks for any help you can offer.

[SLB400EX]

#2
yes, you can change the main jet without removing the carb. Just loosen the clamps if needed and tilt the carb a little.

[SporTrax400]

ok here is what you do you leave the jet adapter in there and just take out the jet it is a 7mm.

Greg