running with damaged y-pipes ?

[nb-attak]

Both of my y-pipes are damaged from running without exhaust donuts late last year. Donuts were on back order last year and i just didnt care of the cost or damage, i just wanted to ride. I have ordered a set of steel y-pipes from bender racing that should be in next week. Now im guessing the heat sheild would stop most of the heat from going to gas tank and because the tunnel is open to cool exhaust the heat wont be an issue. I care just a little more this year as far as cost and damage because im probably changing sled for next year. The sled is LOUD but theres still some 2 smokes with cans that are louder. What damage could possibly be done if it is ridden as it is. Park it or ride it is my ???

 

[gotta-b-blue]

Damage

Worst case scenario is if something, like a chunk of header, got sucked back into the motor, or if some debris fell down into there if enough header has busted out.

 

[SumpBuster]

Apparently I've ridden mine for several hundred miles with no donuts (part of one was all there was), but no cracked pipes. Your flex pipes stick into the y pipes and the clamp seals the two, sort of. I found no real performance issues. Just sounds loud and funny at idle. I don't see anything sucking into a four stroke that's running. They don't scavenge and pulse back like a two stroke.

 

[S pump]

I would be concerned with burning a valve with no back pressure. My sled had leaky pipes and burned several and the dealer suspects the exhaust leak as the culprit.

 

[dave_dj1]

if the crack isn't too big, i sould run it, like stated above, the flex pipes go inside the y pipe about 3/4" and the clamps are still in tact. I doubt you will lose much back pressure. Look at all the people running with bad donuts and cracked pipes who didn't even know it.