backfiring????
-
maestro319
- Posts: 510
- Joined: Thu Apr 08, 2010 9:22 pm
- Location: West Chicago, IL
- Motorcycle: 1986 Honda Goldwing 1200 Aspencade
backfiring????
My '86 GoldWing 1200 had been sitting for a few days. Took her out today for a short trip and when I returned there was a strong exhaust smell and backfiring as I pulled into the garage.Since I am new to this, does that mean a tuneup?? New plugs?? Bad gas?? (not me, my bike) Help.
-
RBGERSON
- Posts: 3233
- Joined: Tue Mar 09, 2010 7:57 am
- Location: SCOTTSDALE, AZ
- Motorcycle: 98 SE GL 1500
had every year from 75 to 83
Re: backfiring????
Back firing out the pipes is from the timing being off and the cylinder firing when the exhaust valve is open a bit..so check timing, check valve setting..one could be hanging open.
HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE
FAIR WINDS,
RB
NOW INTO 1500'S..RIDING A 1998 SE
FAIR WINDS,
RB
-
WingAdmin
- Site Admin
- Posts: 23863
- Joined: Fri Oct 03, 2008 4:16 pm
- Location: Strongsville, OH
- Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (sold)
1998 XV250 Virago (sold)
2012 Suzuki Burgman 400 (wife's!)
2007 Aspen Sentry Trailer - Contact:
Re: backfiring????
It can also be from a faulty ignition system or spark plug. If the plug is only firing some of the time, then the times it doesn't fire, unburned fuel/air mixture is sent into the exhaust. Then the next cycle when the plug DOES fire, the hot exhaust ignites the fuel/air mixture still in the exhaust pipe from the previous cycle, and BANG.
If you have an infrared thermometer ($10 at Harbor Freight) point it at each of the exhaust manifolds coming from each cylinder and see if they are the same temperature.
If you have an infrared thermometer ($10 at Harbor Freight) point it at each of the exhaust manifolds coming from each cylinder and see if they are the same temperature.