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09-12-2007, 07:43 PM
| #1 (permalink) |
| Newbie  Join Date: Sep 2007
Bike: 1992 Gixxer
Location: South Coast, NSW. Australia
Posts: 11
|  1992- GSXR 750- Backfire ???
Hello, I'm after some assistance please??? When I got my bike, the old pipe seemed to have been bodged up a bit, from a previous 'drop' I'd say. (MAGNUM pipe) Silastic, brazing, soldering etc. etc. I cleaned it up to see damage for myself. It took an effort to remove, due to all the silastic, and other sealants. In the process I noticed lower mounting to engine, did not have a bolt through it, causing excessive movement whilst removing pipe (old). After I had 're-bodged', repaired pipe, bike was running like a dog through lower rev-range, even as high as 5000-RPM, till she got her old 'zing' back, and BACKFIRING quite a lot. I've since fitted a new pipe, (MegaCycle <-Australian Made), and resecured lower mounting bolt. (doing this moved lower part of system 1", 25mm closer to motor side, or left-side) Although she is performing, and sounds a lot healthier, I've still got some BACKFIRE happening... OK, now we get to the questions- Could I have possibly loosened headers @ motor? Any other possible causes? any help highly appreciated, cheers, Paul... "sometimes I know I should leave things as they are, but I just can't seem to help myself" |
