The rebuild of the carbs was pretty straight forward, thanks to your help, carb rebuild guidelines and all the related postings! The ski had a new engine installed less than two years ago and the owner before me had the stock airbox replaced with K&N flame arrestors. The needle valves were at 44 PSI before my rebuild, now they're at 31-32 PSI as Bill O' suggested. I replaced both needle valves during this rebuild. Also, just as he said, backing the high speed screws out a little cleared up the acceleration bog instantly. The problem now is that it has developed a hard and hot starting condition. If I turn it off and restart it instantly, it will fire right up. However, if it sits for 2-3 minutes, it will take 3-4 longer then average starts to get it going. I tried backing out the low speed screws about 1/8 turn, then 1/4 turn and that made for a rough idle. Also, I tried increasing the tension on the throddle cable to get the idle up a bit. I've not changed the idle stop screw ever, nor sync'd the carbs. It's running sooooo much better than before this rebuild(throughout the entire throddle range), except for the hard starts that I did not have before. Any suggestions before I pull the carbs off again and add a primer kit? Also, having not ever audibly heard a lean or rich fuel condition myself, I'm having a hard time distinguishing the two. Here's a picture of the new plugs that I ran yesterday for about 3 hours, maybe too long to tell by their looks, but any ideas as to too rich or lean? Many, many thanks in advance!!
Jerry
Jerry
Comment