[Drummerking55]

So I just got a 1994 650 and I am getting a backfire. Just one pop right when I pull the clutch to shift. Has a super trap exhaust. Also it seems sluggish to me. Any suggestions on where to start. My brain says carb clean but I'll defer to the knowledge on this forum

 

[Toney]

Check for an exhaust leak at the head. The bolts come loose.

 

[Drummerking55]

So I looked into it today. I removed the passenger side cover and I noticed that it appears the air box cover is missing in action. I can see straight into the air filter. I am assuming this would cause a lean condition. Can I just seal it with duct tape temporarily to see if it improves

 

[pdwestman]

Yes.
Is the foam air filter Properly Oiled to keep the dirt on the Outside?

 

[Toney]

.............Can I just seal it with duct tape temporarily to see if it improves

Silly question! Duct tape is good for everything except sealing heating ducts. Go figure.

:wink2:

 

[Drummerking55]

Problem solved. Fashioned a new air filter cover and turned out the mixture screw to adjust for the aftermarket exhaust and my backfire on decel is gone. And I have better throttle response as well.