Hey did you get the sport bike air box mod yet for the predator? If so what do you think? I just got the pipe on and the K/N and was also wondering what outerwears you are running instead of the snorkle on the airbox? Thanks for your help.

Dude whats up?
I told you to leave it stock!
No The airforce kit is not available yet.
Me and this guy from La Quinta are trying to come up with a solution based on a jet kit made by Dynojet .... Haven't got it dialed yet....
If I were you I'd hold off a bit on jetting etc. until someone comes up with the answer..... Daryl Rath at Rath Racing has some ideas .... Gary at superbikes has the airforce kit coming out.... Trinity is doing testing ....
It will happen its just going to take time. Here is the url to the "Pred Pack" site if you haven't already found it and the predator Owners site as well.
But like I say no one that I know has came up with the perfect jetting for the combination of sea level and hard acceleration thru whoops without popping.... I.E. Old's hill .... when we do get it figured out ....... Look out :shock:
This engine gots ton of potentail as you've probably already figured out.
Handles like a works bike and turns on a dime. I'll keep you posted on any enroads we accomplish. How did you like your first weekend riding the thing?

Oh yea , The outerwears thing is not correct.... superbikes say you need to remove that whole snorkel assemby including the gromet thing ... to get the air flow to its max potential..... I think some holes are going to need to be drilled in the airbox ... Daryl Rath stated in this months Dirt Wheels mag. that he cut a 3"X4" square out of the back of the box to get the airflow needed I'm a bit hesitant to do that.... Toomey racing has airbox inserts 12 of them (1") for 16.00 I might go that route.... I'll know more after this weekend Ciao

http://www.xmetal.ws/html/jet_kit__air_box.html Is this the one you were looking at or have you seen this one seems to be better than the outerwears velcro thing but $100.00 bucks yikes. Well the first weekend was great the suspension on this bike is very nice. Well I will work with mine some more on the jetting also. I am going to a 157.5 and see what happens. With the pipe they recomend stock jetting have you tried that also?

One more thing I am sure you have probably already checked out all of the predator sites but here is a good one that Sand Ho sent me have you seen it or checked it out? http://www.pred500central.com/phpBB2/ Like I said you have probably already seen it but if not it is worth checking out.
Later

Which silencer are you guys using? Im using the HMF silencer and it works great except for the damn popping. When I ordered it they told me to use a 155 main jet but my quad pops like hell. But I also heard it had something to do with our rev limiters? I also noticed a lot more popping in my quad when i switched to a 13 tooth countershaft sprocket. Do u guys think the 540 kit that is supposed to come out for the Predator is even worth the money?

Well I told you all to leave it stock but nooooooo.....
I gots to fiddle.....
I am ordering the airbox kit from Gary at Esuperbikes today.
You can either a) wait for my review on the thing or...
call an order one or
c) try to figure it out on your own or
d) take your bike to Ron Woods and have him custom install a TM42 Carb
for the thing approx 400.00


Gary seems to think his Airbox kit will solve the popping problem
if it does 100.00 is well spent.

It's more than just the airbox it also has to do with the float adjustment a lighter needle spring and also has instructions and a special drill bit to drill holes in the slide to reduce weight and provide for snappier throttle response. Above and beyond that I have spent at least a couple of hours on the phone with Gary himself so it's not like he sells you something and then say's " Good Luck" hope it helps..... He is as anxious as you are to get your bike running right. I'll keep you all posted as to my progress.

And yes I did try to run with stock jetting ...Bike popped that is why I started trying to figure out the jetting.... best setup to date was ....
157.5 main, clip in 3rd, snorkel completely removed even the rubber grommet.... K& N filter with the prefilter removed... and of course I have the white bos. slip on. with all 9 disc's

However this setup does not in my mind give enough protection from the sand.

Gary has a 580 kit coming ... but I am going to concentrate on getting this thing running correctly before proceeding.

Also a 38 tooth rear sprocket helps in the sand ..... I would not mess with the counter sprocket as it is already 14 tooth and I feel 13 teeth is too tight of a turn for an o-ring chain which put's undue pressure on the counter shaft. I have a 39 tooth sprocket I have not tryed yet ....would like to get to a 40 ... as changing the front sprocket 1 tooth is equivalent to adding 3 in the rear...so I've heard stock gearing is 14/37

All in all this is one sweet bike ...but it's a first year bike ...there will be things that we will go thru that next year owners won't have to ... it's just the nature of "The Beast"

Wait before we start messing with it LEAVE IT STOCK holly cow man are you crazy? Well I for one am going to wait for your impression of the air box kit for several reasons the main one being I wont have time to insall it into the bike before my next trip anyways. I too will probably order it when I get back from my next trip but would love to hear what you have to think about it first. Thanks for all you help Tres and good luck.

John asked:
Hey I was wondering if all the popping is cuz of air restriction from the airbox or cuz it is running lean. Would you happen to know?

Here is an excelent article by Duncan Racing..... yes it is talking about a Keihen and our bikes run a Mikuni BSR type carb but the basics still apply.

http://www.duncanracing.com/techfaq/Tech_k...n-jetting.phtml

But to answer your question directly ...I believe it is a lack of air.
Therefore I do not believe it is due to a lean condition. I.E. lack of air = rich mixture. Keeping a close eye on your sparkplug is always a good idea. if it is white chalky looking your lean.... Cocoa brown just right.... Dark brown or black extending down the insulator is obviously rich.

I also suggest you check out this web site for useful info.....

http://www.b2g4.com/boards/board.cgi?&user=miltony

someone said something about the rev limiter, i have been told that the rev limiter cuts out kinda harsh, casuing popping and sputtering, that might make you think its lean.