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945
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5/17/2008
Location
st cloud, FL
US
Edited Date/Time
1/25/2012 12:55am
I have some questions on the stock class rules at LL for this year.Who do I contact for some rule clairification?
http://www.amadirectlink.com/.../2009_MX_Stk_FAQ.pdf
http://mxsports.com/pages/rules/stock-class-information
Per the 2009 AMA Racing Rulebook Chapter 1, Section 1.2, Paragraph B (pages 11-12): Stock Class Additional Equipment Standards:
1. To be eligible for the STOCK CLASS, the following cannot be changed or modified:
a. Air box frame, carburetor (jetting changes allowed), rim size, electronics, stroke, exhaust system, swing arm, internal engine components, wheel hubs
b. Cylinder re-plating is allowed but must retain the original manufacturers bore.
c. Changes to carburetor jetting are allowed.
d. Clutch plates, pistons and piston rings may be accessory items as long as they maintain the stock shape, design and material of the OEM parts.
e. High compression pistons are not allowed.
f. All other internal engine components must be stock OEM parts.
g. Material may be added to the existing frame for strength, including welding. These changes shall not affect frame geometry.
h. OEM front and rear suspension can be altered with internal modifications only. Shock linkage and suspension spring rates may be changed to any commercially available part.
2. To be eligible for stock classes in oil injection systems used in stock classes, only oil may be put in the reservoir. Pre mix gasoline is not allowed in the oil injection system. Any items not listed above may be changed or modified.
Violations of the stock class rules as determined by the protest process or by the referee of the event will result in a disqualification from the event. A second violation of the stock class rules will result in a disqualification from the event and a suspension from AMA competition for one year. However, if a violation is deemed by the referee to be cosmetic in nature, with no performance advantage or willful misconduct involved, he may issue a warning or fine in lieu of disqualification.
In addition to the above AMA Stock Rule, the following apply to the Stock classes for the AMA Amateur National Motocross Championship:
1. Parts/components that may be replaced or added include but are not limited to: fuel filters, air filters, gas line, handlebars, crossbar pads, non-metal open ended hand guards, serrated foot pegs, lower fork leg protectors, spokes and nipples, decals, spark plugs, spark plug caps, sprockets, handlebar mounts, seat covers, triple clamps.
2. The kill switch on all 51cc automatic machines must be stock and fully functioning.
3. Class 18: Oil injection systems must be present and fully functioning. Only oil may be put in the reservoir. Pre mix gasoline is not allowed in the oil injection system.
4. Removal of gaskets, O-rings or other components is NOT allowed. Port cleanup is NOT allowed.
5. Aftermarket front fork hole shot devices are NOT permitted.
6. Metal hand guards are NOT permitted.
7. Rims can be replaced with OEM or aftermarket rims of the same size and width.
The Shop
BTW, if or when you call MXSports, chances are they'll say unless it's listed, it's not legal, so then the question is, "can it be proven?"
Top of my head I can think of a half dozen things that can be done that is not TECHNICALLY stock, as in out of the crate stock, but can be done and can't be proven.
In the day of two strokes, there was always that occasional stock bike that was a rocket ship. Could actually compete with worked over bikes. How? Things kind of fell into place off the production assembly line. Had a little more compression, timing was perfect, crank was free and balanced, cases were true and sealed well, cyl ports were a little cleaner/matched, etc.
Find out what there measuring and how, what the allowable specifications are, and see how close your motor is.
Another way is to buy several stock motors, have them dynoed, pick the best one and sell the rest. Sound crazy? Seen it done in midget racing divisions where you had to run a sealed motor.
These advantages can help tremendously in other forms of racing, but in MX????
I think in MX you are better off making sure your STOCK bike is properly jetted, fresh/correct tires, well suspended and running to its full potential, and your kid [or who ever you are helping] is in shape, and has in his mind that he can and should win this race!
Do not let your kid think for a second that he can't win, because his bike is not good enough!
Kenney Roberts once said, it is better to have the wrong tires and think you have the right tires, than it is to have the right tires and think you have the wrong tires.
We all have seen someone out there with inferior equipment put it to the rest of them, and others that had the best stink it up.
Hmmmmmmmmmm, I wonder what was the biggest advantage the guy with the inferior equipment had over the rest?
Doug S
Wasn't "stockified" the buzz word last year?
Thats what I am going do do. This may be the last vacation with my 16 yr old before he dont want to hang with the old man any more.
Pit Row
How many people do you think right now are going through the Regional results looking for Edwards... Kissimmee Florida... Class... bike... number...
OK, got that...Print specifics from Vital MX... "modifications that are in question it would be things that lighten rotating mass,produce less friction and just make it run better."
Your kid, beat my kid...protest...proof...busted!
In a few weeks someone is going to come armed at Loretta's!
I have seen many a rider choke at LL's...rider's who were considered favorites to win or podium just meltdown.
As for mods, on two strokes, I have SEEN OEM sponsored riders engine builders receive boxes of heads, cylinders and pipes in order to play "mix and match" on the track or dyno...and yes, it makes a difference because castings vary
None of those are numbered so there's no way of knowing if it came out of the crate on that bike or not.
So think about all the little parts that involved engine operation that are not numbered and with a little mix and matching....
Mike Alessi was protested a zillion times and never caught cheating
Jeff got caught once by removing the backfire screen and they claimed it was a mistake by the mechanic
Top guys rarely get busted for cheating
and catching a cheater by teardown is tough because you MUST SPECIFY EXACTLY WHAT IS MODIFIED AT THE TIME OF THE PROTEST, before the teardown.
Now, if you have a piece of sponge in your brake pedal.....LOL
And there is plenty of ways to reduce weight and friction while still staying by the rules 100%.Think outside the box really back to the basics on how things work.If anyone wants to protest the bike go right ahead.I will give you the riders bike number,classes,etc if you would like.Heck ill throw in an extra $200 if you can win the protest.It will be a legal bike and im sure it wont be the fastest out there with all the mod bikes in the stock class.
I bet a solid 50% of the bikes in 20th place back arent "stock'.
i have thought about it but never tried.
i have qualified several times just never went.
so is it worth the effort time $$$$$ and all the
other stuff that goes with it?
Would you like to be able to say that you are one of the top 40 MX racers in (whatever) class?
Would you like to be able to tell that to your kids?
Also, the experience is one of those "gotta do's" for any hardcore MX person.
Spending a week at a track watching racing everyday from 7:30am to 6pm, non-stop (except for a 1/2 hr lunch)
Watching not only the best amateurs in today's sport, but tomorrow's future Carmichael's, Stewarts, Villopoto's Alessi's and more....Barcia raced it last year
If you really want to know about the future of MX, you go to LL's
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