[quote]
Originally posted by: Rob4092
Put a aftermarket silencer on, then go up two jet sizes like you would with any engine with a modified silencer.

You will hear the popping without any question. In fact, everyone around you will hear it. It sounds like backfiring. Take it a step better. Do this at night with your lights shut off and you will actually see white flames out the silencer.


Maybe I'm not understanding this correctly, but everyone that I know of that has an aftermarket silencer, not the full exhaust, none of them recommend changing the stock jetting. I have the K&N filter and WB silencer, and I have <u>never</u> had any popping what so ever. The only time that it backfires is when it's cold outside and I leave the choke on too long, so that would tell me it pops when it's rich, like a car getting too much gas. My friends have 2 400ex's and 1 Raptor, all aftermarket silencers, different manufacturers, and not a one change the stock jetting, even with the K&N.

Just my 2 cents.

 

G'day ProX
Mate what elevation are you at?
Love to see a pic of your tacho.

Thanks from down under, Geoff.

 

Just uploaded the pictures, waiting for that approval crap, should be up by tomorrow I would think. If I read the airport site correctly, we are at 651 feet. Does that sound correct?

 

AUSSIE, here is a link to all of the pictures I have loaded on the net, that is if this works correctly.......

 

Sorry, didn't work, try this: http://photos.yahoo.com/bc/pro_x_predator and click on the "Ride it like you stole it" link there.