Didnt realize its been a few months since i posted last.
I was going to post a quick update but figured i would take the time to document the build.
I have gotten the bike to a point where it is somewhat rideable. Giving her the italian tune up has really shaken a few things loose and highlighted what needs to be addressed.
Completed in the past few weeks:
- Triple tree tig welded (it didnt hold)
- Triple tree powdercoated so it looks good for now even though its cracked still
- new wheel bearings front and rear
- rebuilt the front master cylinder.
- new brake pads for the disk
- installed taper head bearings on the front steering stem
- Carb Sync
- new carb boots
- new condenser
As i mentioned I have been riding it a bit around the neighborhood just to see what is going on with it.
two things stick out to me and they might be related.
Firstly
i noticed that it would idle fine at start up with no choke; when i would ride it for say 15 min or so and get it hot it would not idle at all.
If i adjust the idle screw so that the bike idles when its hot; it will idle at ~ 4k when cold.
I am not sure what to make of this.
Secondly
I was noticing some.... power discrepancy. I felt what felt like really good acceleration early in the rev range and then it would die off unexpectedly.
I finally noticed today that it seems like the R/H cylinder dies at about 4k RPM's. So really good acceleration early on then it just is kind of meh.
When i rebuilt the carbs i noticed that one of the diaphragms had an attempted repair to it. at the time i let it go to see if it would run like that. i popped the top off the carb today and found that the repaired diaphragm was in the R/H carb so it seems the diaphragm perhaps may be the culprit as to why that cylinder dies higher in the rev range.
The left hand diaphragm looked fine. no tears or anything. Should i replace it at the same time? I have 1 on order from Common motor.
Pic below. Would this diaphragm be causing the cylinder to die or would it be a potential problem with the advancer?