i have a 1998 xc 600 liquid cooled and i can ride for about 30 mins and my exhaust gets so hot it starts too melt the belly pan and i have all the heat shields in place...and my can gets cherry red.. if anyone had this problem could u let me no cuz i have no clue on wats goin on cuz i looked in the can and it looks like everything is still in it.... if u could PLZ help me out...

Check the position of the e clip on the jet needle. If these sleds are adjusted lean they will turn the muffler cherry red on a cold day.

but i dont have mikuni's i got kehne's....

You mentioned that you had all the shields in place. Does the include the one Polaris supplied as part of a recall? (I had a '98.)

i dont no anything about a recall..

Timeing

If you do a Google search, I bet you'd find the information.

I got a letter at home from Polaris (many years ago) letting me know that I should have a new shield installed because some belly pans were melting. Mountain riders in particular were having problems.

Never seen an exhaust can get cherry red from too retarded timing....usually its the manifold or head section of the pipe that will. Almost sounds like the cans exit is plugged somewhat.

i looked inside of the can and its not plugged er anything...

if you got a stock can take it out and shake it if theres a rattle then its junk find a new one
mine did the same thing on my 97 700 bought a slp can and its all good

Keihens have needles also.

how much did the slp can cost??? and i dont think anthing was movin around inside of the can...

like 150 i think my buddy got it new from slp's scrach&dent sale

theres a plate inside and on mine it cracked or broke and thats when it started
melting the belly pan so i got a slp can and new belly pan its fine now

btw changeing a bellypan sucks