THANKS WILLY, YOU PUT ME LIGHT YEARS AHEAD.
As for as what I did, most of it was staring, thinking and talking with other folks. Playing off experiances of others, watching a lot of full size truck and tractors pull, watching the utility ATV's pull and just general physics. As far as the bike goes the mods have been very, very limited. Stock motor with slip on, jets and no air box lid. Factory orginal 2001 Stock clutch. However, the hitch and gear ratio are another story. Hitch is all bolt on no holes drilled, stock swing arm, adjustable up and down, in and out. Running 1100 lbs with me on the bike. It seems to like that weight, at 1200 it doesn't want to open up.
Watching that video, really got me wanting to get back into that sport, but unfortunately there arent any pulls for atvs around here anymore.
When I first started there were about 4 per year that I competed in, and I really had to be careful that I didnt over do it, I remember at one pull where the only thing that stopped my bike was the sleds brakes after I had gone by the fiinsh line about 50 feet.
This pull was put on by a local ATV dealer in the pulls location. I drove over an hour and a half to get there and I had taken my sons bike also, I had never pulled with his bike so getting a launch with it was difficult but I did get it to launch on the second try. After I stalled it on the first try I could hear in the back ground a lot of the competitors cat calling me to just go home, even the flag man was asking me if I could even move the sled, all I said is dont worry, I'll move it.
The farthest pull that day was about 200 feet on a 250 foot track, when I launched the bike and started pulling, I was amazed at how fast my sons bike got going and I took it full track until the sleds brakes came on. 300 feet and nothing was stopping me other then the sleds brakes.........
So I clearly won the class but was disqualified because the front wheels of my bike had left the ground, even though some of the 4wd drives also had done the same.
As a result of this, I was told I could not participate because I couldnt gurantee that the front wheels would remain on the ground, and because of this all of my friends that had gone down to participate also pulled there bikes from the competition. So the ATV pull lost a third of there bikes with one according to me irrate dealer trying to stop me from particapating...........
The picture I displayed in an earlier post is of my bike competing in the last pull I ever competed in. I had 7 pulls that day of which I had 5 full pulls, the full pulls I had even though I stopped past the finish line were not even slowing my bike down, the combo I had was near perfect and tooks about 4 years of pulling to perfect. The bike with me on it weighed around 1150 pounds with 75% of the weight at the rear of the bike, the hitch was built into the rear suspension linkage, I had to keep the bike stock appearing and functional, the gearing was a whopping 7 to 1 with homemade gears. I also used techniques from other pullers to setup my bike, I went with lots of wheel spin and I would rarely ever hook up, My goal was to keep the engine rpm up in the torque peak and used tires that were practically cut and worn down until I barely had 3/8 of inch tread bars, they were sharpened also, but since we werent allowed to use cut tires we would install the tires backwards and then spin them on concrete until they smoked to wear out the cutting marks,