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Momaru · March 28th, 2010, 07:01 PM

I think the sucking sound is your carbs drawing in much more air than they used to. Give it a LOT of throttle briefly while standing still (like from closed/idle to half or 3/4 open) and I think you'll hear the same sound you're describing. If that's it, it's the way your bike breathes now. I'll try to get a recording of mine in the next day or so for comparison.

For what it's worth, I left my stock runners on, but ran a big zip tie around the filter between the runners & attached it to the zip tie holding up the carb. But whether you use the runners or not MAKE SURE YOU TIGHTEN YOUR CLAMPS! I didn't tighten mine enough the first time around and the carb end of one runner fell off; sucked in road crud for an unknown period. Got to spend about a week & a half cleaning dust & gravel out of my carbs & engine because of that.

March 28th, 2010, 07:01 PM	#77
Momaru ninjette.org certified postwhore Name: Paul Location: Roanoke, VA Join Date: Jun 2009 Motorcycle(s): 2008 Candy Plasma Blue 250R Posts: A lot.	I think the sucking sound is your carbs drawing in much more air than they used to. Give it a LOT of throttle briefly while standing still (like from closed/idle to half or 3/4 open) and I think you'll hear the same sound you're describing. If that's it, it's the way your bike breathes now. I'll try to get a recording of mine in the next day or so for comparison. For what it's worth, I left my stock runners on, but ran a big zip tie around the filter between the runners & attached it to the zip tie holding up the carb. But whether you use the runners or not MAKE SURE YOU TIGHTEN YOUR CLAMPS! I didn't tighten mine enough the first time around and the carb end of one runner fell off; sucked in road crud for an unknown period. Got to spend about a week & a half cleaning dust & gravel out of my carbs & engine because of that. __________________________________________________ Proud member of the Blue Army