Just got back from a ride. It was backfiring quite a bit.

I adjusted the air/fuel mixture back to 1 turn out. It was at 2.

I'll go for a ride in a little bit and see..

I have the DJ kit installed and the instructions said to set the clip in the 4th notch but made no mention of whether to include the original spacer or not, so I did a side-by-side comparison of the two needles.  That seemed like a rather large difference from the stock needle with the spacer, so I decided to try the DJ needle (set at the 4th notch, as indicated) with the spacer.  That appeared to be somewhere between stock-with-spacer and stock-without-spacer, so I figured I'd give it a shot.  Now that I've tried it, I am sure it's still too lean on throttle release.  Tomorrow I will remove the spacer and run it with the DJ needle set at the 4th notch.

Firefighter wrote on 12/31/69 at 16:00:10:


So it is a "pop" and not a "boom".  Let's call it a "pop" instead of a backfire then.  They are different lean conditions and sometimes can mean a leak.

Have you checked your muffler clamp and the header clamp at the cylinder?  Do you have any black stuff on the oil level sight glass?  That can mean a muffler clamp leak.

Yeah, I'm going to do another side-by-side and maybe even take a photo.  You can't assume the kit is complete.  I know for sure the spring was not included in it.  The instruction sheet was somewhat odd in the way it represented the parts.  There were basic drawings of each part in the middle, with lines pointing to the stock parts from the one side and more lines pointing to the DJ parts from the other side.  In some cases, lines from both sides pointed to the same part (such as the needle and main jet).  There were not separate depictions duplicated parts.  In the case of the needle, you know you only use one and choose the new one.  In the case of the spring, you know you need it and the only one available is the stock one because there was not one included in the kit.  In the case of the spacer, well.... it's kind of up for grabs.  That's why I did the side-by-side.  I don't recall a difference in taper but it's entirely possible.

Quote:

So the dealer did yours with the needle set at the 4th notch and with the white spacer installed too.  Is that correct?

I just checked the clamps at the muffler and the header bolts.  The header bolts were loose, and the muffler clamps were just a tiny loose.

I'm off for a ride.  

Just got back...

It still pops on decel and shutting off.  I'm not too sure what else to do.

I figured out why it was dying on me the other day when I was putting it into 1st gear....
I still had the kickstand down, and I guess it won't let you into gear with it down   (correct?)  I had no idea.

Live and learn.