So, like many people recently posting, I also picked up one the the cheapo kstar kits, and have been having some trouble getting my engine to behave properly. My setup is as follows
- 14mm bing bored out to 16.5
- 80 jet
- second from top of needle
- intake made from ped's original exhaust header approximating 18mm in inner diameter
- kstar kit w/ kstar high compression head
- Proma country exhaust
- timing is about halfway between fully advanced and retarded
I think I've included all the essentials; bike is hardwired, and am running about 40:1 non-synthetic.
The problem is that it doesn't seem to like slowing down/coasting. It idles fine, and accelerates well, but once I'm up to speed (and am not running WOT yet as the kit is two days old) it seems to four stroke, or for that matter, simply not fire. As I'm cruising at 25 or 30 and ease off the throttle, all I hear is the whirr of the engine, and an occasional pop.... pop.... pop...
Furthermore, as I decelerate when approaching a stop, I can kind of hear the engine stall and I must give it a lil gas to keep it going, but once I'm at a full stop and have given it a few bursts of fuel to recover from the previously mentioned stalling, it idles fine.
This deceleration occurs on a more rapid scale when going around corners as one would expect; slow down for a turn, and it almost stalls out completely unless I throttle into the turn.
I've tried both upjetting to 84 (which resulted in barely being able to start the engine) as well as down-jetting to 76 (which did not hurt, but did not seem to help, and I don't want to run too lean with the new kit).
Any suggestions for what might be causing this are greatly appreciated. Thank you.