whats the point of the resonator?

[toalco-kdx]

what does the resonator do? im not sure if its called the resonator but i ordered a new gasket for it and thats what they called it, its on the left side( sitting on bike) on the side of the cylinder. it says KIPS on it so i always though the powervalve was under there but its just a open space. so whats the point of it? does it have anything to do with the powervalve mechanism?

 

[MX175]

I think it is a little like black magic, but there are pressure waves that form or develop in there that assist in scavenging the exhaust gases. It kind of helps the expansion chamber do it job.

Mid '80's Yamaha IT200 had a similar arrangement, but on in intake side. I'm not sure how effective it was, but it was there. There was a black rectangular container above the head on the left side and it was connected by a hose to the intake side. I can't remember if it was before or after the reed valve (I think after).

 

[carrslott]

From my 1995 to present service manual (a very handy reference tool) "Operation at low engine speed...Some of the exhaust gas flows into the resonator. The resonator generates a delayed pressure wave that suppresses the escape of fresh gas, lowering fuel consumption." The resonator is closed at high engine speeds(over 6000 rpm)

 

[farmerj]

Here are a couple of threads that you might want to look up re: resonator function & volume.

<http://dirtrider.net/forums3/showthread.php?threadid=31159&highlight=canyncarvr>

and

<http://dirtrider.net/forums3/showthread.php?threadid=61479&highlight=canyncarvr>

I want to do anything I can to increase low end and "stall-proof" my '01 200, so if anyone has tried increasing resonator volume let me know! I'm thinking I might have a spacer plate machined just for the fun of it... ;)

Jeff

 

[toalco-kdx]

i cant go to those links because it tells me i need to log in and i tried searching for 'resonator' and all that came up was this thread. so could you copy some of the stuff from those links u gave and post it here?

 

[farmerj]

toalco-kdx,

Too much good stuff to post here! I'll PM you. Let me know if it doesn't work. There is a good deal of interesting Resonator Theory that I'm sure you won't want to miss!!

 

[Michelle]

Toalco, see if this works - just deleted the "&hightlight=cayncarvr" which may have been causing problems for you? If it doesn't work this time, try cutting & pasting the links, rather than just clicking them.

http://dirtrider.net/forums3/showthread.php?threadid=61479

http://dirtrider.net/forums3/showthread.php?threadid=31159

Farmerj, no point in sending Toalco a PM as he's not a subscriber so unable to read PMs.

Hope that works for you this time Toalco. Only other way I can think of getting the threads to you to read would be to download & email them (yell out if need be).

 

[farmerj]

Thanks, Michelle - your help is much appreciated!

Jeff

 

[toalco-kdx]

thanks.i got michelles to work. in the adress bar i deleted the last 5 numbers 76088 and put in 61479 (the last 5 numbers from micheles link) and it worked. i guess that the only way for a no subscriber to see a subscribers links.