Do i need to rejet the fcr mx if I add the Yoshi RS-3 full exhaust system?

I was wondering if i need to rejet the fcr mx when i add the yoshi RS-3 full exhaust system to my 07 DRZ400S.

Yes, If it was jetted properly for the old set up then you probably just need to go richer on the main

I haven't bought the fcr mx yet though. I was going to get both the full yoshi and the fcr mx together. Sorry bro, Guess i should of mentioned that... Thank you for the info kind sir :smirk:

Get the FCR from Epic motorsports / Sisneros Speedworks and he will jet it for your exact set up before it gets mailed to you.

Yes ..re jet required.. do carb , pipe and 3x3 at the same time....

I've got a full Yosh RS2 on my DRZ400SM. The stock carb has been jetted for sea level and the airbox modded.

Will the jets supplied in the thumpertalk kit match up with the RS2?

Carb comes standard with the following:

- 200 Main Air Jet

- 160 Main Jet

- 45 Pilot Jet

- 100 Pilot Air Jet

- EMR or EMS Needle

I've got a full Yosh RS2 on my DRZ400SM. The stock carb has been jetted for sea level and the airbox modded.

Will the jets supplied in the thumpertalk kit match up with the RS2?

Carb comes standard with the following:

- 200 Main Air Jet

- 160 Main Jet

- 45 Pilot Jet

- 100 Pilot Air Jet

- EMR or EMS Needle

160 main jet

200 main air jet

EMN needle

clip 3

45 pilot jet

remove pilot air jet

2 turns fuel screw

o-ring mod

Thanks Craigo!

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