I am running a Force 28 in a Jammin x1

I think the tune is close to where it needs to be (I've been here before and totally screwed it up, which is why I'm here). After its warm it runs really well at WOT (there is a steady stream of smoke also)

When I blip the throttle or go WOT from a stand still it runs well for the most part.

Here is my issue/question, during driving it around for a little and getting on it fairly hard (running laps on the street), it starts to bog when I give it throttle, it then opens up and runs well. I tried adjusting the LSN and leaning it out a little, but it doesn't seem to help. I could lean it out more but last time I did that I couldn't seem to get it back to where it was.

It will also idle a little high for about 5-10 seconds then drop down to almost a gurgle, it will run for about another 5-8 seconds then die out.

Is my idle too high or do I need to continue to adjust the LSN? I was thinking leaning out the LSN and opening the idle a little.

Any thoughts will be much appreciated.

Lean the lsn til the idle stays high. Then, adjust your idle to desired speed. Make sure engine is up to operating temp before doing this.

Thanks, ill give it a go

not saying that engine is easy to tune in anyway shape or form

sounds like a possible low compression situation and you might just have to richen hsn before starting your low speed tuning , if it doesnt take a tune then something is amidst

Thanks for the help, I leaned out the LSN and lowered the idle, it is running strong.

Appreciate it