31
Photos & Videos / The mighty KX500!
« on: May 15, 2012, 01:03:05 AM »
That guy has some serious cahones! Very cool! 
News:
Like the Phoenix rising from the ashes Two Stroke Motocross is reborn!
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32
General Two Stroke Talk / who rides what?
« on: May 15, 2012, 12:25:00 AM »
Current ride is a 2002 honda CR250, also have an 01 KX250(blown motor).
Will hopefully get a new KTM 250SX in the next year or two!
Will hopefully get a new KTM 250SX in the next year or two!
33
Photos & Videos / New look on the RM125
« on: April 24, 2012, 10:13:31 PM »
Rm looks good! Hog Heaven is a great track! I rode it back in February with my Dad. The owner is very nice, he opened up the track the next day for us too. He keeps the track in great shape. I'm moving back to Elizabeth City, NC in July. So I will be riding most of the tracks around Eastern NC. Can't wait to ride there again! Have fun at the Hog!
34
General Two Stroke Talk / Yet another project
« on: April 22, 2012, 06:28:40 PM »
Keep us posted on how the build is going! I have done most of the same stuff to my 02 CR250 as well. I'm looking into the JD Jetting carb, just need to save the cash first. The bike is looking much better now too.
Good luck!
Good luck!
35
General Two Stroke Talk / Info on a 2002 CR250
« on: April 18, 2012, 07:18:59 PM »
Ran into another issue today, the carb has been giving me hell trying to get it dialed in, or so I thought! The bike idles great, and will run on the stand all day long and revs to the moon. It's getting plenty of fuel and air, it's still not dialed in to where it should be but it's good enough to start plug chops. Rode it around the yard for a bit and never really cracked it open(yard is not big enough for that), so after she is all warmed up and seems to be breathing fire again I head out on the street to open it up and wind through the gears. First is somewhat smooth and the power winds up quick, shift into second and crack it open again, it winds up strong until about halfway through the powerband and starts to die off like its not getting fuel, I let off the gas and pull in the clutch, it idles really high then starts to jump up in rpm's, let the clutch out a little and brings the idle back down, crack the throttle open and it sputters and dies. The carb is emaculate at this point every thing but the slide and body are new, and set to fmf jetting specs for an 02. I can sometimes run it through the gears up to 4th without opening the throttle all way. A buddy of mine that had a little pitbike with a fourstroke motor in it had a similar problem. His bike would die under load in the same manner that this cr250 is doing, put his bike on the stand and it runs great, idles and revs to it's limiter no problem. He went through every option, even replacing his carb. He heard a few guys on forums talk about possible electrical issues, so he chased the electrical system starting at the plug all the way back to the stator/alternator. He replaced everything through that system and found the problem was the alternator/stator. When the bike was not under load it performed as expected, under load and on the go the stator could not provide a strong enough spark to combust the air/fuel mixture in the cylinder. So, I am wondering if anyone has ever had issues with this sort of problem on their 2strokes and am I way off in assuming this to be a problem or possibly on the right track!
Any help would be greatly appreciated!
thanks,
Chad
Any help would be greatly appreciated!
thanks,
Chad
36
General Two Stroke Talk / Info on a 2002 CR250
« on: March 28, 2012, 01:32:50 AM »
Started tuning the carb today, got a ways to go to get it spot on! This Mikuni carb is kind of a pain as well. Gonna swap it out with a keihin carb from JD. The previous owners had the jetting all jacked up. She'll be running smooth as butter by the weekend!
37
General Two Stroke Talk / Info on a 2002 CR250
« on: March 27, 2012, 02:35:25 AM »
Here are a few pics of the bike! It's a work in progress, definitely not as clean and awesome as MxSkillz CR!
This is what it looked like when I picked it up.
This is where it's at currently, I have a lot more planned, just waiting on a few bucks to throw at it!
I had found an issue with the base gasket. So I replaced the gasket and added a little extra gasket sealant!
I found the base gasket was not replaced after the new top end was done, cylinder was not even torqued to spec, and the mating surfaces between the cases and cylinder had residue and parts of old gaskets on them. It would make a kind squeaking/ plunging sound when you kicked it over, it was sucking air through the space between the cylinder and case into the crank case! I took it all apart and the surfaces mate good, but with so much extra crap between the surfaces and not being torqued to spec, it's no wonder why it wasn't sealing properly! One of the previous owners must have jammed a crow bar or similar tool between the cylinder and case to pry it off, What a jackA##! It really freaked me out at first, but it's all good now.
This is what it looked like when I picked it up.
This is where it's at currently, I have a lot more planned, just waiting on a few bucks to throw at it!
I had found an issue with the base gasket. So I replaced the gasket and added a little extra gasket sealant!
I found the base gasket was not replaced after the new top end was done, cylinder was not even torqued to spec, and the mating surfaces between the cases and cylinder had residue and parts of old gaskets on them. It would make a kind squeaking/ plunging sound when you kicked it over, it was sucking air through the space between the cylinder and case into the crank case! I took it all apart and the surfaces mate good, but with so much extra crap between the surfaces and not being torqued to spec, it's no wonder why it wasn't sealing properly! One of the previous owners must have jammed a crow bar or similar tool between the cylinder and case to pry it off, What a jackA##! It really freaked me out at first, but it's all good now.
39
General Two Stroke Talk / Info on a 2002 CR250
« on: February 27, 2012, 07:39:48 AM »
Well, it's sitting in my garage now! looks pretty good, needs a couple minor things(chain, sprockets and some TLC!!). All in all its in great shape!
It has the V-Force 3 reed valve with a FMF Fatty Pipe and a turbine core 2 silencer. Brand new top end, with heat cycles completed. Suspension is decent, needs some tweaking , but the springs are right on for my weight. It needs a face lift, but that will have to wait! I'll post pics soon!
Thanks
It has the V-Force 3 reed valve with a FMF Fatty Pipe and a turbine core 2 silencer. Brand new top end, with heat cycles completed. Suspension is decent, needs some tweaking , but the springs are right on for my weight. It needs a face lift, but that will have to wait! I'll post pics soon!
Thanks
40
General Two Stroke Talk / Info on a 2002 CR250
« on: February 26, 2012, 05:21:18 PM »
My kx250 just blew another crank bearing under 40 hrs on a complete top and bottom rebuild, The cylinder has to be stripped and replated. I was debating on fixing my kx or getting something else. The CR seems like a steal and it just got a new top end. It's in alot better overall shape than my '01 KX. I think I'll swap the Keihin carb from my KX to The CR. What else can be done to improve the Motor?
Thanks
Thanks
41
General Two Stroke Talk / Info on a 2002 CR250
« on: February 25, 2012, 11:29:40 PM »
Hey guys,
My buddy is selling his '02 CR 250. He will sell it to me for pretty cheap. I just wanted some info on that model year before I bite.
Anything helps!
Thanks,
Chad
My buddy is selling his '02 CR 250. He will sell it to me for pretty cheap. I just wanted some info on that model year before I bite.
Anything helps!
Thanks,
Chad
42
General Two Stroke Talk / How do you train?
« on: January 17, 2012, 12:07:40 AM »
Very good topic. This is the most overlooked aspect of riding!
For the Pro riders, they have personal trainers and nutritionists. They have pre-planned regiments for fitness and diet. It would be great to have someone push you and tell you what to eat all the time during training and competition. However, the reality for us poor folk is quite different. It is quite clear that the best thing you can do is ride! But riding cost lots of money, and most riders can't afford the up keep of their machines for practice, training, and racing! Apart from riding all the time, there are numerous options for conditioning and maintaining your fitness level.
-Hydration, as TwoSmoke commented on earlier. Hydration is the most important aspect of any activity. Staying Hydrated allows your body to do many things. It helps your body regulate its temperature, whether you are hot or cold. It also aids in joint lubrication. Drinking 8-12 ounces of water in the morning when you first wake up helps do all of these things and boost metabolism. You should be drinking at least 64 ounces of water per day. Of course this all depends on your level of activity, hydrate according to your exertion level. Sports drinks such as Gatorade and Powerade are high in elctrolytes, but the down side to them is the high amount of sugar put in theses drinks. Mixing them 50/50 or less with more water is acceptable, but unless you are working out for 1-2 hours or more at a high exertion level water is all your body needs.
-Nutrition, With a well balanced diet, your body will get plenty of electrolytes(mostly from sodium), natural sugars(not refined/ processed), protein, fat, and carbohydrates.
-Pre-Hab(warm-up) There are several misconceptions when it comes to this topic. First is stretching, there are many different ways to stretch, some are good and some can be damaging.
"Types of stretching: Static, Active, Dynamic, PNF & Functional Stretching"
Static Stretching
As the name suggests, static stretching involves holding a muscle at the stretched position for 20 -30 seconds. No additional benefit has been shown to extend the stretch for more than 30 seconds.
Static stretching is best done after your workouts. It has shown to decrease strength and power if done immediately before weight training. The stretch is held when you feel a nice stretch ( or slight discomfort) until you feel the muscle relaxing.
Active Stretching
Active stretching involves stretching the muscle actively. In other words, you are holding the stretched position with the opposing muscle group. You muscles are playing an active role in holding the stretch position.
Dynamic Stretching
Dynamic stretching is similar to active stretching. However, in dynamic stretching you don?t hold the stretch. You are always moving or dynamic. Dynamic stretching is not the best for improving flexibility. But it is good way to warm up for your sport and has shown to improve performance.
PNF Stretching
Propioreceptive Neuromuscular Facilitation (PNF) is said to use receptors to improve the neuromuscular (related to nerves & muscles) response of the body. The flexibility gained can be maintained by doing PNF stretches of minimum one repetition for at least 2 times a week. There are different ways to do PNF: Contract relax, Contract-Hold relax and so on.
Usually, PNF is performed with the help of a partner. But you can do it on your own with a towel for resistance. Atleast if you get hurt, you have only yourself to blame.
PNF yields greatest gains and is the fastest way known to improve the range of motion or flexibility.Recent studies have shown that there is nothing neural or propiorecptive about PNF and is due to an increase in stretch or pain tolerance. So forget the term ?PNF?.
Functional Stretching
Functional Stretching is something which came out recently. Most of the strength coaches now lean towards functional stretching to improve flexibility in their athletes. Athletes mainly use free weights and not much machines because of the theory of specificity. The theory says that strength, coordination, speed, & balance is highly specific to the movement.
Based on the same theory, if you want the newly gained ROM to show up in your movements (or have the strength and coordination), the stretching should be functional or specific. Since most movements are ground based (or standing), it makes a lot of sense to do lower body stretches standing on your feet.
* Use static or PNF stretching if the muscle is really tight. Better to avoid static stretching before your workouts. Functional stretching is a better option to PNF & static, atleast theoretically.
* Use dynamic stretching as warm up rather than static stretching.
* Maintain the arch in your back and keep the non-stretched leg straight and toes pointed upright.
* Always remember to breathe while streching. Stretching shouldn?t be painful.
I'll post more later, but do some research for warm up routines and find what works for you!
For the Pro riders, they have personal trainers and nutritionists. They have pre-planned regiments for fitness and diet. It would be great to have someone push you and tell you what to eat all the time during training and competition. However, the reality for us poor folk is quite different. It is quite clear that the best thing you can do is ride! But riding cost lots of money, and most riders can't afford the up keep of their machines for practice, training, and racing! Apart from riding all the time, there are numerous options for conditioning and maintaining your fitness level.
-Hydration, as TwoSmoke commented on earlier. Hydration is the most important aspect of any activity. Staying Hydrated allows your body to do many things. It helps your body regulate its temperature, whether you are hot or cold. It also aids in joint lubrication. Drinking 8-12 ounces of water in the morning when you first wake up helps do all of these things and boost metabolism. You should be drinking at least 64 ounces of water per day. Of course this all depends on your level of activity, hydrate according to your exertion level. Sports drinks such as Gatorade and Powerade are high in elctrolytes, but the down side to them is the high amount of sugar put in theses drinks. Mixing them 50/50 or less with more water is acceptable, but unless you are working out for 1-2 hours or more at a high exertion level water is all your body needs.
-Nutrition, With a well balanced diet, your body will get plenty of electrolytes(mostly from sodium), natural sugars(not refined/ processed), protein, fat, and carbohydrates.
-Pre-Hab(warm-up) There are several misconceptions when it comes to this topic. First is stretching, there are many different ways to stretch, some are good and some can be damaging.
"Types of stretching: Static, Active, Dynamic, PNF & Functional Stretching"
Static Stretching
As the name suggests, static stretching involves holding a muscle at the stretched position for 20 -30 seconds. No additional benefit has been shown to extend the stretch for more than 30 seconds.
Static stretching is best done after your workouts. It has shown to decrease strength and power if done immediately before weight training. The stretch is held when you feel a nice stretch ( or slight discomfort) until you feel the muscle relaxing.
Active Stretching
Active stretching involves stretching the muscle actively. In other words, you are holding the stretched position with the opposing muscle group. You muscles are playing an active role in holding the stretch position.
Dynamic Stretching
Dynamic stretching is similar to active stretching. However, in dynamic stretching you don?t hold the stretch. You are always moving or dynamic. Dynamic stretching is not the best for improving flexibility. But it is good way to warm up for your sport and has shown to improve performance.
PNF Stretching
Propioreceptive Neuromuscular Facilitation (PNF) is said to use receptors to improve the neuromuscular (related to nerves & muscles) response of the body. The flexibility gained can be maintained by doing PNF stretches of minimum one repetition for at least 2 times a week. There are different ways to do PNF: Contract relax, Contract-Hold relax and so on.
Usually, PNF is performed with the help of a partner. But you can do it on your own with a towel for resistance. Atleast if you get hurt, you have only yourself to blame.
PNF yields greatest gains and is the fastest way known to improve the range of motion or flexibility.Recent studies have shown that there is nothing neural or propiorecptive about PNF and is due to an increase in stretch or pain tolerance. So forget the term ?PNF?.
Functional Stretching
Functional Stretching is something which came out recently. Most of the strength coaches now lean towards functional stretching to improve flexibility in their athletes. Athletes mainly use free weights and not much machines because of the theory of specificity. The theory says that strength, coordination, speed, & balance is highly specific to the movement.
Based on the same theory, if you want the newly gained ROM to show up in your movements (or have the strength and coordination), the stretching should be functional or specific. Since most movements are ground based (or standing), it makes a lot of sense to do lower body stretches standing on your feet.
* Use static or PNF stretching if the muscle is really tight. Better to avoid static stretching before your workouts. Functional stretching is a better option to PNF & static, atleast theoretically.
* Use dynamic stretching as warm up rather than static stretching.
* Maintain the arch in your back and keep the non-stretched leg straight and toes pointed upright.
* Always remember to breathe while streching. Stretching shouldn?t be painful.
I'll post more later, but do some research for warm up routines and find what works for you!
43
General Two Stroke Talk / what did yall think about the 2nd round of SX?
« on: January 15, 2012, 03:46:57 AM »
I was glad to see Dungey win, especially for KTM. Stewart looked fast, but as usual, he choked. RV was wicked fast after his mishap! Weimer looks fit and a pretty solid ride. I was kinda dissapointed in Windham, he ran so strong for most of the race and wasn't really paying attention to who was catching him, RV made a solid pass on Windham though.
Has anyone been paying attention to the lines that RV is taking/choosing? His cornering looks quite a bit faster than most of the other guys and carries his speed on the outside line on those 180 degree corners.
Has anyone been paying attention to the lines that RV is taking/choosing? His cornering looks quite a bit faster than most of the other guys and carries his speed on the outside line on those 180 degree corners.
44
Open Forum / The officially official hunting/fishing/outdoor thread
« on: January 13, 2012, 08:26:19 PM »
Nice Grouper Rookie! What is a Toman? It looks like it would put up a good fight!
45
Open Forum / The officially official hunting/fishing/outdoor thread
« on: January 10, 2012, 04:45:50 PM »
Yeah the Caribou has very little nutrition, but it was a fun hunt! They move so fast across open ground and tundra with little effort, kind of a pain to get within rifle range. I've got lots of other hunts just didn't have a camera. 