kvanderploeg
The Dutch Terror
OK, so I fought with the BS34's and decided to give the VM34's a chance. Bought a set from Michael Morse of 650Central.com. I put the carbs on last night and it would start but ran like total crap. Went in for the night and read the Mikuni Guide, the Sudco book, and the guide here from Panic (very helpful).
Bike will start, but giving it a fairly quick snap to maybe 1/4 throttle will cut the bike out. If you feather it past that it revs well. Here's what I've done so far:
I did find that turning the air screws all the way in did seem to help this problem, but when I pulled the plugs after running it that way for ~10 minutes they were already quite brown and wet. Please let me know if I've omitted any important information. Any help and/or thoughts are appreciated. L
Bike will start, but giving it a fairly quick snap to maybe 1/4 throttle will cut the bike out. If you feather it past that it revs well. Here's what I've done so far:
- Adjusted Cam Chain Tensioner - Was very close, but I adjusted very slightly.
- Adjusted Valves - Left side intake and exhaust were very close to correct. Right side intake was also very close. Right side exhaust was slight out of spec.
- Checked Timing - I have a Pamco with Ultimate Coil and had originally set it to the approximate spot where it is recommended to make it run. With a timing light, I made a very slight adjustment and locked it back down.
- New spark plugs gapped to .036"
- Checked compression again this morning. This was a cold check with the kicker and holding the carb slides open.
Left Side 152
Right Side 155
- And these are the carb settings per the sheet Michael sent:
MJ - 180
PJ - 25
Needle-clip - 6F9-3
NJ - P-6
CA - 2.5
AJ - None
FL - 25
Mounted VM34's, attached throttle cables, set air screw to 1.5 turns out per Michael's document. I also set the slide height with a 5/32" drill bit, then set the adjusters to pull the cables at the same time. With that said, here' the video of what's happening:PJ - 25
Needle-clip - 6F9-3
NJ - P-6
CA - 2.5
AJ - None
FL - 25
I did find that turning the air screws all the way in did seem to help this problem, but when I pulled the plugs after running it that way for ~10 minutes they were already quite brown and wet. Please let me know if I've omitted any important information. Any help and/or thoughts are appreciated. L