Not enough backpressure?

[KEITH KRAUSE]

.050" !!??? Thats WAY too much. Most all aftermarket needle shim kits are .020"

There's always a critic.
Jetting spacers vary a bit in thickness. Most of the ones I have/or have used, are approx' .022/.023" thick. That's equivalent to 1/2 a jet needle position. This guys thread says he has pod filters. I honestly don't believe anything less than one full position up on the needle will help him get his mixture right. So one full position would be .044" or in that area. I also wanted to just add a bit because I think he'll need a little more and it's always best to error on the rich side. I'm also aware that many owners won't buy actual jetting spacers. Instead, they go to Radio Shack or wherever and try to find them.
So my ".050" suggestion was both because I think it may work and it's an easy number to remember/try to match at the store.

[Road_Clam]

There's always a critic.
This guys thread says he has pod filters. I honestly don't believe anything less than one full position up on the needle will help him get his mixture right. So one full position would be .044" or in that area. I also wanted to just add a bit because I think he'll need a little more and it's always best to error on the rich side. I'm also aware that many owners won't buy actual jetting spacers. Instead, they go to Radio Shack or wherever and try to find them.
So my ".050" suggestion was both because I think it may work and it's an easy number to remember/try to match at the store.

Ah yes, the "pods" jetting again. I speak from my own hands on jetting experiences, but I have NO "pod" experience. So I will just politely shut my pie hole, and stick to airbox jetting advice.

[Deesel]

I have a similar setup to the bike in question. I ditched my stock needles which had one clip setting for some dynojet needles which had I think 5 clip settings. The dynojet needles are very similar (maybe the same, except for the extra grooves) in profile to stock needles. In order for my bike to run decent at all, with the free flowing airbox(or pods), I have my clips 1 setting from the richest groove. This positions that needle a good .050" higher than the stock needle was. I went from 115 mains all the way to 136.5 mains as well.

Just trying to help because shooting in the dark buying tuning parts will get old. I wish I had this kinda of info when I did my bike. It has been worth it though!!!

ECR

[Billy Ricks]

I have a similar setup to the bike in question. I ditched my stock needles which had one clip setting for some dynojet needles which had I think 5 clip settings. The dynojet needles are very similar (maybe the same, except for the extra grooves) in profile to stock needles. In order for my bike to run decent at all, with the free flowing airbox(or pods), I have my clips 1 setting from the richest groove. This positions that needle a good .050" higher than the stock needle was. I went from 115 mains all the way to 136.5 mains as well.

Just trying to help because shooting in the dark buying tuning parts will get old. I wish I had this kinda of info when I did my bike. It has been worth it though!!!

ECR

It easier and not all that expensive to just get a kit. Rather than trying a hit or miss method where you keep buying jets and such and repeated trips for parts a kit will get you in the ballpark right off the bat.

[Deesel]

I did that too. The Dynojet main jets were too rich for my setup. Those jet kits dont always apply to everyones setup perfectly. I could have bought a few sets of main jets and shimmed my needles for what I payed for that Dynojet kit, but I didnt know. Live and learn
It runs alot better now than it did in stock form- so Im happy.

[fat_sac]

I'm having this issue too on an 1100. Flat power between 2500 and 4500. I too have pods. Thanks for the info. I have stock headers but the guy who owned it before me put Harley cans on it.

[KEITH KRAUSE]

I did that too. The Dynojet main jets were too rich for my setup. Those jet kits dont always apply to everyones setup perfectly. I could have bought a few sets of main jets and shimmed my needles for what I payed for that Dynojet kit, but I didnt know. Live and learn
It runs alot better now than it did in stock form- so Im happy.

Just so everyone knows....Dynojet, K&N, Factory.... among others, stage 3 jet kits, are designed for use with K&N PODS and a QUALITY pipe.
I tell people that the Emgo and similar cheaper pods and "different/non-quality" exhausts don't flow as well and this will defeat the design of the jet kits. This is why some believe the jet kits are designed with rich main jets. Many don't buy the K&N pods because of cost. Many don't buy a quality exhaust because of cost. Those are mistakes and the jetting (and owner) will suffer.

[carlosjc401]

80 Gs 1000g

I put back on the stock air box after getting new rubbers for it and now my Bike run good and i also lost the nasty sucking of air noise

[Billy Ricks]

Just so everyone knows....Dynojet, K&N, Factory.... among others, stage 3 jet kits, are designed for use with K&N PODS and a QUALITY pipe.
I tell people that the Emgo and similar cheaper pods and "different/non-quality" exhausts don't flow as well and this will defeat the design of the jet kits. This is why some believe the jet kits are designed with rich main jets. Many don't buy the K&N pods because of cost. Many don't buy a quality exhaust because of cost. Those are mistakes and the jetting (and owner) will suffer.

Exactly, you can't expect to make a silk purse out of a sow's ear. If you use the components the jet kit calls for you will be in the ballpark right off the bat. Anything less or more and you will have issues. Years ago when I did run the stock carbs I installed a Kerker K2 exhaust with K&N pods and a Dynojet Stage 3 kit and the jetting was nearly spot on using the tuning info Dynojet supplied.

[Grif]

I went looking for a Stage 3 kit to do the K&N pods right, but bike bandit doesnt ANY stock stage 3 kits for an 850. Any other suggestions?