how lean of a main jet can u go

[mattmullins]

Have morelys muscle kit air lid dale walkers 4-2 dyna 3000 setting #4 #150 main jet a/f 2 1/2 turns 1000 ft above sea level and still rich running around 12% a/f I have 145 and 147.5should I use 145 . Was at 152.5 mains changed then dyno with 150 didn't change much

 

[one2dmax]

Try the larger 177.5 PAJ2's and see what that does for it. It will effect the main though the biggest range is the mid range

 

[mattmullins]

I didn't install your hole kit sean There were four long skinny lookin jets Didn't know if I needed to put those in not

 

[mattmullins]

Did some searchin on the dyna 3000 and found a guy that did a dyno on the first 5 settings and from stock to the 2nd setting was the same 3 - 5 looked like performance went down just a little. So I put in the 147.5 main jet resync put the dyno 3000 on stock setting and went for a ride feels like I'm pulling a lot harder. So when I did the dyno with the dale walker hole shot 4-1 with 170dj mains with stock air box 90F out side was at 113.75hp today did the dyno with dale walker hole shot 4-2 morelys muscle kit dyna 3000 on setting #4 150 mj stock needles 50F out side and dynoed at 111hp wtf? Dale must be full of shit on his 4-2 pipes

 

[joelyons50023]

Can u post ur dyno sheets that show where u are at. Are u going to fenders to get it ran? As i have been dynoing my bike i have noticed differences in the numbers vs. Engine temp and oil temp. With only a difference of two hp that not a huge deal. Bring it by the big barn sometime so we can mabie take a second look.

 

[mattmullins]

I Have my sheets but I don't know how to post pictures from my phone and yes I did do my testing at fenders and 1 at van wall

 

[mattmullins]

I guess with everything I added plus cooler temps I expected more not less with dales new 4-2 pipes suppose to be more HP over his old 4-1 witch I had on so I expected more not less

 

[Sauron]

I have Dale's 4-1 on my FZ1, and it performs exceptionally well. That bike dyno'd at 141 rwhp four years ago.

 

[mattmullins]

So has anyone ran 145 mains?

 

[one2dmax]

No reason why you can't run that small.