Exhaust not fitting into port

[Guest]

Hi everyone,
I am new here and trying to build my first bike. I have an 81 gs1100e and I am trying to install a used 4-into-1 exhaust (it is a Vance & Hines)on my bike. the issue that I am experiencing, is the collets are too long for the ports and the clamps are not sitting flush on the motor. Do I still need collars/ plates for the exhaust to make it sit flush? or am I missing something else?

thank you

[Weapon]

well the vance system wont bolt on like a stock one will. is it that the bolts are the wrong length?
If you have a photobucket account why not post some pics of the problem and maybe we will be able to spot the issue.

[Darkspeed]

The Vance and Hines sit farther out than most exhaust systems of that mounting type. You will see alot of the lag part of the mounting bolts. I made the same mistake and thought when tightening everything up there would be minimal space between the head and flanges. Had to return the stainless bolts I just bought for longer ones.

[ukjules]

I may be off target here but I attach a thread i started when I had given up trying to
get my exhaust into the head recess's. The fix was simple and has transformed my bike and
I no longer fear taking the exhausts off.

---- might help

Youll find it under - Exhaust-downpipe-to-head-connection

http://www.thegsresources.com/_forum/showthread.php?233172-Exhaust-downpipe-to-head-connection