DezertKing83

Bog if the jet is too big I meant... also how strong is the function of the need clip position? I've been keeping it at the center when changing jets to do fine tuning for when I get the right jet...should I keep doing that? Or would say 1st or 5th position give a noticeable difference in jet selection?

OK haha I put on the 158 earlier didn't go far just down the street as soon as I pulled in the garage a cop drove by! Haha but at least the plug was wet she was throwing a bit more smoke too but still pulled strong! I'll grab a couple jets before we head out so I can do some tuning in the dirt! When I'm up sizing the Jets it should bog a bit on wot?

@possum not short shifting just not letting the gear tap out at max rpm I'm breaking in and testing not dragging! I'm shifting prolly 80-85% of the top rpm range..

I only did the choke thing kuz I read up to ride with it on to see how much richer the jetting needs to be i.e. if it acts rich I don't need to upside but it's not the case.. I'm pretty much at sea level in San Diego been colder since the rain but not bad 70°f give or take..I'm gunnar have to bring the Jets with me and work on it when I head to superstition mtn on Thursday I'm gunnar put on the 158 I got if that doesn't richen it up I don't know then I might have to take it to somebody before I break sumptin!

OK I got pulled by the cops so I can't do test rides down the street anymore!! Haha I'm not fully fully rapping it up kuz I'm still in the break in process but yes yesterday when it bogged I slowed down "slightly" for a stop sign gave it a little go and shifted when I ran full it didn't bog on 4th but guessing did on 5th because I slowed down again! How many sizes should I jump at a time for the main? And yeah I meant 5th "bottom" of the needle for richness! I'm running it with the chokes on right now to keep it wet without its been completely dry through all the Jets I've been using! Is the 58 pilot OK or should I drop it? The initial response from trinity was to run the 55 and 145..

I'm running 35mm keihen currently 58 main and 148 pilot needle clip on 6th position still dealing with lean conditions did a plug check it still looks a bit grey/charred and plugs are dry I been doing the choke on runs and the plug is still the same but wet... after I did the post I tried fully punching it and 4th didn't bog but 5th did! My take on it is if I'm not revving/speeding high enough then it bogs! But the power band should keep climbing? I don't have a leak down tester but when I first put her together I did have a leak it caused all kinds of issues but I redid everything retighten everything and the issues stopped... here's what's done to the motor.. 400cub 68mm bore Noss coolhead forgot the dome size but remember it's built for pump 91 ProDesign intake yes it has a boost bottle till I get caps Billet reeds and 1/2" spacer 35mm keihen k&n pods Barnet clutch basket HD discs stock springs lock out maxed Cpi oofs

Wut up guys!! So finally got my bike all put together "4year build" and I've been trying to tune this monster every jetting I run is too lean "spark plug check" but today I finally got it into 4th gear and it bogged at 4th gear powerband... these are the Jets I tried and all the motor upgrades are on my signature... 1st set 142main 52pilot 2nd set 145main 55pilot 3rd set 148main 52pilot All had needle in middle for fine adjust if needed and air screw at 1.5 turns out! This is a trinity set I called trinity and told them my setup and they recommend these! Now I don't think I've gotten into 4th gear before but could the bog be from jets too big? If so why is the spark plug dry and charcoal? Shees running like a bat out of hell but guessing it's kuz it's lean?