Question about 1991 Suzuki GSX-R 750 M
1)You have two coils servicing four spark plugs. This is called the wasted spark system because the spark plug fires on the compression and exhaust stroke. Therefore on one of the coils , one spark plug is firing and the other is fouled. I would guess that you have a bad spark plug cap on that cylinder(about $25). Replace the spark plug cap and the spark plug and your problem should be solved.
2) You have low compression on that cylinder and need a rebuild.you may want to pull the plug and do a compression test.
Posted on Sep 10, 2010
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
Tips for a great answer:
Jun 07, 2017 | 1989 Suzuki GSX 750 F (Katana)
May 06, 2016 | Suzuki Motorcycles
Jul 20, 2017 | 2010 Suzuki GSXR750
Jul 01, 2017 | 2003 Suzuki GSX 1300 R Hayabusa
Sep 16, 2017 | 2007 Suzuki GSX-R 600
May 19, 2010 | 1985 Suzuki GSX-R 750 F
Feb 23, 2010 | 1992 Suzuki GSX-R 600
Sep 30, 2009 | 2000 Suzuki GSX 600 F (Katana)
Jan 22, 2009 | 2006 Suzuki GSX 750 F (Katana)
Jul 19, 2011 | 1991 Suzuki GSX-R 750 M
327 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: