Pro Boat PRB2250 - Manual (Page 10)

10
Replacing the Exhaust Coupler
After a period of time, it may become necessary to replace the exhaust coupler that joins the tuned pipe to the exhaust header
(see replacement parts, Section 10). To replace the coupler, follow these simple instructions:
Step 2. Use a 3mm hex driver to loosen the two tuned pipe
mount screws. Now, pull the tuned pipe out as shown.
Step 1. Cut tie wraps that secure worn coupler to the
manifold and pipe.
Step 3. Remove the remainder of the worn coupler (from
manifold and/or pipe) and thoroughly wipe away any oily
residue from both the manifold and pipe. It will be helpful
to use motor spray (DYN5500) or alcohol to fully remove
the residue.
Step 5. Place a drop of threadlock on the two 3mm screws
that you removed. Carefully place the screws back through the
tuned pipe mount bracket. Make certain the screws are tight.
Step 4. Replace the exhaust coupler and secure it with tie
wraps. Make certain that there is an approximate space of
1/8'' to 1/4'' of space remains between the manifold and the
tuned pipe.