Cross-pipe repair.

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  • ssco156
    Forum Apprentice
    • Mar 2015
    • 67
    #1

    Cross-pipe repair.

    The cross-pipe on my 450 has rusted through and I've now got a hole that's about half an inch wide. Would any of these exhaust repair kits do the job or do I have to take it to a shop to be welded? Thanks in advance.
    1981 GS450
    Tags: None
    • chuck hahn
      Forum LongTimer
      Past Site Supporter
      • May 2009
      • 25918
      • Norman, Oklahoma
      #2
      Just weld a cap over the holes. I never understood a need for the crossover. No crossover makes removal and installation much easier too.
      MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
      1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

      NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


      I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

        Comment

        • Gorminrider
          Forum Sage
          Past Site Supporter
          • Aug 2012
          • 4803
          • British Columbia, Canada
          #3
          The Suzuki crossover pipes are the first to rust out,imo. They're very vulnerable to road fling and moisture under there....

          As a quick fix, funky, not guaranteed but has worked well enough for me,
          You can try "hvac foil tape". Several makes, commonly available,but check it out here at 3M.
          3M™ Foil Tape 3340 | 3M United States
          https://www.3m.com/3M/en_US/p/d/b40068009/
          When sealing ducts and other surfaces for heating, ventilation and air conditioning systems (HVAC), it's essential to have a strong, long-lasting foil tape that can stand up well to hot and cold temperatures. The 3M™ Foil Tape 3340 has the combination of 2.0 mil aluminum foil backing and strong, pressure sensitive acrylic adhesive that gives our tape a superb operational temperature range of -40°F (-40°C) to 300°F (149°C) making it ideal for sealing rigid fiberglass duct boards and flexible air duct systems. The foil backing also serves as an excellent barrier against moisture, dust and many chemicals — making it strong, durable and long-lasting. The very low moisture vapor transmission rate makes the tape a good sealant and the acrylic adhesive supplies superior temperature and UV resistance to give you a strong, lasting and reliable bond. It also has an easy releasing poly coated kraft paper liner to protect the adhesive and keep the tape ready for use. 3340 tape meets requirements for UL 181 A-P and UL 181 B-FX Listings as a measure of reliability and quality standards. 3M™ Foil Tape 3340 is used in a variety of applications including heating ventilation air conditioning (HVAC), duct closure, vapor seal on reinforced fiberglass duct board, rigid fiber glass duct board, and flexible air ducts and air connectors across a number of industries, including: transportation, specialty vehicle, metalworking, construction, automotive, military and government, general industrial, MRO, electronics and aerospace.


          It's high-temp to a certain degree... I've used on several crossovers and even on holes in a crankcase or valve cover temporarily....clean off as much rust as you possibly can and wrap it 'right round the pipe several times. A hose clamp can help back it up. I've even wrapped it on crossovers that aren't yet thrashed as a preventative measure...

          It's generally useful for several things...sticky but It does NOT stick to any oily surface.

            Comment

            • jprice90
              Forum Newbie
              • Sep 2025
              • 12
              • Southern NJ
              #4
              Personally i would just do a quick search on ebay. parts and labor time isnt worth it

                Comment

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