I've read thread upon thread and tried everything recommended and nothing is helping. Here is the condition.
Bike sat from September 2016-June 2017. I ran it maybe once or twice as it had a slow discharge on the battery and wasn't charging good I didn't have time to fix it and couldn't ride it so it sat until sept. In September of 2017 I moved from Ohio to CA, took the bike with me and bought a stator / rectifier (https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
) as I had determined that was causing the discharge. I swapped it out and when I fired it up all seemed good but when it warmed up it started popping (after fire) like somebody was lighting a pack of m80 in the tail pipe. It runs super smooth just lots of popping.
-First thing I suspected was bad gas from sitting, drained the gas and put fresh fuel in - no change.
-Next thing, I saw was the tubes from the carbs to intake were dried and cracked. I replaced those but noted that the cracks didn't run to the inside and no change there.
in-between here I moved the bike from sea level to 4k feet above sea level. note that ohio was at 600 ft above sea level.
-Then I disassembled the carbs and cleaned them, again assuming some gas had varnished up and was plugging a jet or something - no change.
-I attempted to tune off of the PMS. I had noted that my rear carb was at 2.5 turns out and the forward was at 2 turns when I cleaned the carbs. I found no improvement by opening or closing the needles in 1/4 turn increments 3 turns out and in until the engine quits. It did get worse going out. The odd thing I noted is that the behavior is somehwat off. The turns I noted above were known place the bike has run good at before but when I turn them out the rpms increase along with the popping up to 3 additional turns out and then rpms asymptote. There is no real lean drop off its just a steady decrease in rpm going down from there and at the 5 turn out setting it pops a lot and sounds very rich (which is what I expect).
-Next I tried plugging the AIS lines - no change.
- Next I checked the valve lash, all were within tolerance but I adjusted to make sure t hey were right in the middle no change.
I'm at my whits end with this thing, I don't get it. Here are my two thoughts:
- It looks like the Stator has the pick up on there as well, is it possible I got a lemon that is messing with the timing and causing this? The problem did show up after I swapped these parts.
-The only other thing I can think is jet size but it doesn't make sense the bike ran fine before.
I appreciate any help this is becoming incredibly frustrating.