What PJ, MJ & Needle #'s Are Guys Running?

supertireguy · Dec 4, 2005

What PJ, MJ and needle numbers are you guys running on your bikes?

Any commentary as to why you chose or changed the jet sizes you did? Local temperature, altitude, engine size, stock exhaust, slip-on, full system, etc. Any future plans to rejet based upon performance observations?

Here's the info from my tuning efforts so far.

2005 FS650E (San Francisco - Sea Level)

* Stock (After HSB Supplied Jets Installed) *
PJ 48
MJ 180
Stock Emulsion Tube
Stock Air Jets
Stock Needle - Clip 3 From Top
Stock Exhaust (Tea Strainer Removed)

- Comments -
Jetting generally rich. Spark plug dark, bothersome off-on 1-5% throttle stumble made worse at altitude, good power and feel once on the gas. Fuel screw adjustments of little help.

* Currently *
PJ 38
MJ 158
Factory Pro Emulsion Tube
Stock Air Jets
Factory Pro #1090 Needle - Clip 3 From Top
Akro Ti Slip-on, Stock Header Pipes

- Comments -
The Factory Pro Emulsion Tube with its many small pin holes (to better atomize the fuel) made the mix very rich with the regular 48PJ/180MJ combo. We began by using a #1085 Factory Pro needle. MJ dropped from 180 to a 158MJ. PJ dropped from 48 to 45, 42, 40 and finally 38PJ. The primary tuning bug/issue during this process was a bothersome off/on throttle stumble at 1-5% throttle. This problem improved as we lowered the PJ#. The last step was to change the Factory needle from #1085 to #1090 increasing the root diameter size. This last adjustment finally leaned out the mixture just right at 1-5% throttle, fixing the stumble issue and throttle response thru the rev range feels perfect now.

I'll post dyno results the next time I can finagle some time on the machine.

Post up your settings and/or findings. Hopefully sharing this knowledge will help the Husaberg community to better understand and develop their favorite bikes.

LINEAWEAVER · Dec 4, 2005

Re: Experience With PJ & MJ Numbers 450, 501, 550, 650?

OK, all joking aside.
Why have you resorted to using "Factory Pro" tuning components when I offer a proven Husaberg Jet Kit?

In my opinion and unless Mark is giving the stuff away you are clearly barking up the wrong tree.

Factory Pro / AKA Wheelsmith Racing:
http://www.factorypro.com/

Please say hello to Mark for me as we go back some thirty odd years.

Sincerely,
Dale

PS
Support those which support Husaberg!

supertireguy · Dec 4, 2005

Re: Experience With PJ & MJ Numbers 450, 501, 550, 650?

The Factory Pro stuff was done gratis with the help of Adam Wade and located nearby SF so I thought it was ok to bark up that tree.

No offense the the Lineaweaver jet kit. Dale has many years of experience with the magic arts of engine tuning.

A drop in jet kit is fine and dandy but for me it was good fun being personally involved in the learning experience of jetting my bike. It might be fun for other Husaberg owners too.

LINEAWEAVER · Dec 4, 2005

Re: Experience With PJ & MJ Numbers 450, 501, 550, 650?

supertireguy said:
The Factory stuff was done gratis so I gave it a shot.

It was a learning experience for both of us but all is well now.

Thank you for the reply.
Gratis? Mark? :lol:

How about a Factory Pro and / or SuperTireGuy Jet kit?.
Like I said, "I have known Mark for over thirty years".

Regarding Adam Wade:
Adam has authored a very good book.
http://www.motorbooks.com/Store/UserDir ... 136172.jpg

Best Regards,
Dale

PS
For those inclined to experiment:
For years Yoshimura has offered a hollow perforated metering rod for the FCR. Pretty darned ingenious that Pops Yoshimura.

Taffy · Dec 4, 2005

Re: Experience With PJ & MJ Numbers 450, 501, 550, 650?

the wheel!

at last!

what a good idea!

regards

Taffy

LINEAWEAVER · Dec 4, 2005

Re: Oh Pops

What, you thought I was kidding?

Yet another ingenious design compliments of the late Pops Yoshimura

Multiple Jet Nozzle (MJN) system replaces tapered needles found on standard carburetors with a symmetrical, hollow perforated needle. Machined holes in the needle atomize fuel at the center of the carburetor throat, the point of highest intake velocity. Improves throttle response and horsepower at low and midrange rpm. Peak power is also increased because the main jet is allowed to flow fuel with minimal restriction. Pilot fuel circuit is stopped when the throttle is closed to eliminate engine run-on and keep the combustion chamber cleaner. Includes hard-chromed brass MJN needles that provide awesome throttle response with no wear on the needle jet.

sm610 · Dec 7, 2005

It would be a shame to imply that folks who tune their own bikes without buying some proven drop-in jetkit from a reputable vendor is like reinventing the wheel because said vendor already offers a proven solution. Reinventing the wheel you say? Why bother when a vendor already has the unique wheel you think you need? Because it's fun to tinker and learn! I had hoped to see other UHE members compare notes and offer some support for this end-user learning process instead of some veiled why bother, go buy a jetkit approach.

I think most Husaberg owners are the type of people who want to know more about their bikes, how they work, how to perform the service, how to tune the engine, enjoy doing so and learning during the process. I think it's great that SuperTireGuy, with the help of FactoryPro, did their own carb tuning discovery resulting in the problems, changes and improvements they found. Even better that he chooses to share his findings with us. :idea:

Or just maybe the possibility that SuperTireGuy and FactoryPro might come out with their own $49 Husaberg jet kit is what shivers ye timbers? Or maybe they will just publish their jet/needle# findings so folks can think, learn and do it themselves? Cat's chasing dogs, gay marriage, double solitaire, jumbo shrimp, soft rocks and synthetic natural gas! What's next? :shock:

This motorcycle engine tuning business, Husaberg or otherwise, is really not some deep dark art best left to mysterious engine wizards in their distant dyno castles. While we very much respect the wizards (like DL) with their many years of experience they first had to first tinker and learn themselves, just like SuperTireGuy.

Surprised that Mark at FactoryPro might assist someone with their engine tuning gratis? After knowing Mark for over 30 years it seems you might not really know him as well as you thought you did. I've known Mark for only 7 years now and on many occasions he's gladly helped us in this regard without presenting us a bill at the end of the day. Based on that alone I've referred a number of customers to Factory.

LINEAWEAVER · Dec 7, 2005

"Cat's chasing dogs, gay marriage, double solitaire, jumbo shrimp, soft rocks and synthetic natural gas! What's next?"

What a great time to be alive! :roll:

Oh, I get it. You feel as though I have attacked yoyur buddy:
http://www.husaberg.org/modules.php?nam ... thor=sm610

Don't take it to heart as such was not intended as a character assault.

Regards,
Dale

PS
You do not stay in business for three decades (as has Mark) by giving away the farm. :lol:

LINEAWEAVER · Dec 7, 2005

Re: SM610

Just curious as to how you feel regarding my earlier statement:
"Support those who support Husaberg"

Should a prospective Husaberg buyer use Ebay to purchase his motorcycle (good price and all) or support his local dealer?

http://cgi.ebay.com/ebaymotors/Other-Ma ... 3429QQrdZ1

Food for thought:
How many Husaberg related questions does SuperTireGuy and / or Factory Pro answer each day?

Robbie,
Does Adam offer a free version of his book? I paid retail.

Kind Regards,
Dale

nsman · Dec 7, 2005

Hi Guys...ok if I elbow in here for a minute.
From my perspective ,as much as I don't mind doing some experimenting to solve a problem, at the same time if there is a proven solution to that problem that can be bought then that is the route I take.I work a lot and my riding time is important to me,if it can be avoided ,I do not want even one ride spoiled by a poor working bike.Think of it like this, a jet kit for your bike may seem expensive next to a few jets but a poor working bike can wreak a whole weekend...frustrating and expensive...
I know alot of guys like to experiment,thats ok but I want my bike as good as it can be when its time to ride.
As far as supporting those that support this site, truth is, it is those few really knowledgeable people who frequent this site that makes it as truly special as it is.These people really do not have much here to sell you so its not that they are making money for sure...Dale sells a few jet kits,the numbers are so low he has to make the needles by hand,a few cams,Boss markets a few Rad guards and a few other pieces, thats it,Taffy has spent more hours documenting the known problems and cures for these bikes that it borders on an obsession and he has nothing to sell you.
To understand better where Dale might be coming from,think of this...say you worked at an auto parts store and you just spent 2 hours talking to a customer about spark plugs,you took the time to educate and inform him all about spark plugs and his options and what would work best for him,he does not buy any plugs from you but calls you a hour later on his cell phone and tells you he is at Wal Mart and could you tell him again what plugs he should get because he has forgotten......nsman

HusaStarts · Dec 7, 2005

nsman said:
.I work a lot and my riding time is important to me,if it can be avoided ,I do not want even one ride spoiled by a poor working bike.Think of it like this, a jet kit for your bike may seem expensive next to a few jets but a poor working bike can wreak a whole weekend...frustrating and expensive...
I know alot of guys like to experiment,thats ok but I want my bike as good as it can be when its time to ride.

Well said nsman thats just how I feel. If it were not for the suport paid for or free from people like Dale, Taffy, Boss, Dan at motoxotica and Jason
with uhe site I wouldn't still have a berg. I understand Dales frustration with the jet kit, the masses clamer for a kit and he sells like 12? I guess such is the nature of the internet, but I also understand how a dealer like Dan can't just mark up each berg he sells to pay for said kit and remain competitive. All in All I fell very lucky to have Dale around to help keep me on the berg. I did buy a Linaweaver jet kit and it works flawlessly.

Phil

albacore · Dec 7, 2005

All of this simply has boiled down to Dale being pissed off that someone didn't buy said kit that he put together. I find it pretty sad that a person can't come on here and just ask a simple question "What PJ, MJ and needle numbers are you guys running on your bikes?" and the answer turns out to be why ask just buy my product.

LINEAWEAVER · Dec 7, 2005

albacore said:
"All of this simply has boiled down to Dale being pissed off that someone didn't buy said kit that he put together". I find it pretty sad that a person can't come on here and just ask a simple question "What PJ, MJ and needle numbers are you guys running on your bikes?" and the answer turns out to be why ask just buy my product.

Pissed? Nah.
Disappointed? Yes.

By popular request I put together a few Jet Kits.

Considering all of the experts that now grace this site I suppose it was rather foolish of me to suggest that they actually be purchased.

What was I thinking? :roll:

Kind Regards,
Dale

supertireguy · Dec 7, 2005

My intent was not to create a ruckus. I just wanted to share my findings with other UHE owners who wrench on their own bikes.

For those of you who don't want to experiment and just want to buy a solution you know what to do.

bigbob · Dec 8, 2005

Last year I enjoyed playing with my Husky stock needle and differenent jets and clip settings as a way to learn about jetting and my bike and my elevations. However I am lazy and since apparently I can't just rotate the Husaberg carb to jet it, I read I'll have to drop the inlet boot to get the carb down and rotated. I am just staying put with my stock set up, until I get Dale's kit one day.

I actually went thru lots of amateur testing on my Husky and posting about it, while e-mailing James Dean about my personal testing as I bought his kit. He was pretty cool about it, listening patiently while slowly teaching me why his settings and needle does better then where I was with my experimentation. that patience that JD showed and the fact that he answered my personal e-mail really won me over.

I won't pester all you nearly as much because...I did my learning curve with JD, now I'll just drop in Dale's kit and jet recomendations for my elevations/ temp range and go with it.

oh my settings now for 4000 ft 50-80F , I use extended fuel screw to adjust for temperature / elevation swings

at 4500 ft 65F

1.5 turns on FS,
stock needle - one clip richer then stock/factory placement ( sorry forgot where it is)
48 pj
178 mj

Bike runs good, no rich bogs, no hesitations, no poping, seems buttery smooth............ I kinda think I can go leaner. My husky jetting when slighly rich was buttery sounding, but with JD's kit its runs more like an electric sewing machine. so that buttery sound on my Husaberg tells me even though it runs smooth thru the whole powerband, that maybe I could get it leaner...........but like I said, I'll just drop in Dale's kit and go with it.

sm610 · Dec 8, 2005

LINEAWEAVER said:
By popular request I put together a few Jet Kits.

Considering all of the experts that now grace this site I suppose it was rather foolish of me to suggest that they actually be purchased.

What was I thinking? :roll:

Kind Regards,
Dale

I would never be so presumptuous as to call myself an "expert", but I do know when someone is being condescending. :roll: :lol:

LINEAWEAVER · Dec 8, 2005

SM610 = Patrick = Owner http://www.subcycles.com/husaberg.html

Gentlemen,
I am more than happy to share the technical limelight.

Husaberg owners and prospective owners:
I encourage you to contact Patrick and / or Robbie regarding your Husaberg technical needs.

Patrick = http://www.subcycles.com/husaberg.html
Robbie = http://supertireguy.com/

Albacore,
Not really sure what your axe to grind is all about. In any event I understand Rick Bozarth to be your tuner of choice. Rick comes highly recommended and as such I also encourage others to seek out his expertise. Rick Bozarth: 503-255-8971

Since I am by choice an authorized "Husaberg Warranty, Service and Parts Facility" as opposed to that of a stocking dealer I have on numerous occasions referred prospective clients to both Patrick of Sub and Dan @ Motoxotica.

I am indeed pro Husaberg and shall continue as I have for the past decade to support the community. I am however a bit surprised regarding the lack of "Jet Kit" support. 8O

Sincerely,
Dale

courier1009 · Dec 8, 2005

Now boys; be nice. Personally I appreciate both approaches. If humans didn't teach each other how to use fire we would all still be walking. I thought that this was a forum to exchange information not sell product. If you want to sell stuff buy an ad. :roll:

LINEAWEAVER · Dec 8, 2005

courier1009 said:
Now boys; be nice. Personally I appreciate both approaches. If humans didn't teach each other how to use fire we would all still be walking. I thought that this was a forum to exchange information not sell product. If you want to sell stuff buy an ad. :roll:

Yeah , your right.
We should all pour our own cases and forge our own rods.
The online store, how stupid is that? :roll:

How about the exchange of information regarding where to purchase a particular product and / or reviews?

Information comes in all shapes and sizes.

Dale

courier1009 · Dec 8, 2005

I can see the smoke from your forge from here, no wait; thats just the smoke shooting from your ***. That there are other people developing their own bikes burns doesn't it?

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What PJ, MJ & Needle #'s Are Guys Running?

supertireguy

LINEAWEAVER

supertireguy

LINEAWEAVER

Taffy

LINEAWEAVER

sm610

LINEAWEAVER

LINEAWEAVER

nsman

HusaStarts

albacore

LINEAWEAVER

supertireguy

bigbob

sm610

LINEAWEAVER

courier1009

LINEAWEAVER

courier1009

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