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BellicoseBanshee

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Everything posted by BellicoseBanshee

  1. Keep the spring in. :thumbsup:
  2. That is what I was thought. That will be a 'must have' if I ever decide to upgrade my R to a Puma set-up...
  3. Are these installed on top of the pressure plate like the DD?
  4. They are called slingshot lockouts. HJR sells this one...
  5. I'd ride it. First thing that came to mind was an ATC70 with a Banshee engine.
  6. F.A.S.T. sells the coil and wires as a kit. Nology Coil and Wires
  7. Check your intake rubber for cracks...
  8. Well, I was wondering that myself. I am more surprised that the those errors, and some grammitical errors as well, made it to the second edition. Oh well, it is still a great source of information...
  9. The formula to convert degrees to mm before TDC is correct: T = L + R X (I - cos A) - [L^2 - (R X sin A)^2]^0.5 The formula for exhaust duration should be: D = (180 - cos^-1 [(T^2 + R^2 - L^2)/(2 X R xT)]) X 2 or D = 360 - 2cos^-1 [(T^2 + R^2 - L^2)/(2 X R xT)] The formula for inlet duration should be: D = (cos^-1 [(P^2 + R^2 - L^2)/(2 X P X R)]) X 2 or D = 2cos^-1 [(P^2 + R^2 - L^2)/(2 X P X R)] When using the formulas, simply remember that: the cosine of an angle is a number and the inverse cosine of a number is an angle, provided the numbers and angles fall within the range and domain of each function... :beer: And just a reminder for the formula in the exhaust chapter: cot = 1/tan :thumbsup:
  10. I spy "2GU" cases. :ninja: Old school right there...
  11. Thank you, Lee. A little downtime is a small price to pay to have the site back to normal... :thumbsup:
  12. Stock banshee needles have five grooves. The Toomey/Dynojet needles have six grooves.
  13. J-Madd, it looks like the same applies to the valve timing formula as well... A = cos [(T^2 + R^2 - L^2)/(2 X R X T)] Should be: A = cos^-1 [(T^2 + R^2 - L^2)/(2 X R X T)] where: R = stroke divided by 2 in mm L = con rod length center to center in mm C = deck clearance in mm E = distance from the top of the barrel to the piston at the instant of inlet opening or closing T = R + L + C - E For: R = 27mm L = 110mm C = 1.8mm E = 44.7mm (valve opening) 31.9mm (valve closing) T = 94.1 (valve opening) and 106.9 (valve closing) Valve opening: A = cos^-1 (-2516.19/5081.4) A = cos^-1 (-0.49518) A = 119.7
  14. I am assuming you are referring to a graphing calculator. The fact that all the values can be stored makes the calculating process easier. I am old school, I still prefer to work problems with pencil, paper, and simple scientific calculator whenever possible...
  15. I think the answer lies in the definition of cosine: cos θ = (X / r) Where: θ = angle in degrees X = adjacent side of triangle contained within the unit circle r = 1, radius of the unit circle Since we are using the unit circle where r = 1: cos θ = X The formula states: A = cos [(P^2+R^2-L^2)/2PR] If you consider the formula for the inverse cosine, cos^-1, it states: cos^-1 X = θ If the formula is written: A = cos^-1 [(P^2+R^2-L^2)/2PR], the math works out. cos^-1 (8404/8880) = 18.8
  16. Someone has been reading the A. Graham Bell book...
  17. Yes, it is feasible. Granted, it is easier for some to see it come apart to aid in assembly, but it is not that complicated. You should only bore the cylinders as much as necessary to keep the tolerances within limits. If the tolerances are getting close to the service limit, you may want to consider doing it now while everything is disassembled... :cool:
  18. That is funny, you even posted in that thread! :ninja:
  19. Blue- 0.125 Black- 0.160 Red- 0.190
  20. Unplug the control unit and unplug the throttle switch (connector is usually located between the fuel tank and radiator). You have a 2-to-1 carb, so the carburetor switches are aleady disconnected. You can clean-up the wire harness by eliminating the useless plugs and wires. I am pretty sure the electrical write-up on the technical documents page linked from the HQ homepage explains how to do it... Scroll down to Q&A #63... Electrical Q&A
  21. No problems, it is great. I only asked about the carbs because it is too big for stock carbs, should have said that earlier... :cool:
  22. What carbs are you using? I use the intake F.A.S.T. sells. I think it is a Boss... F.A.S.T. Intake
  23. The Pro-Wedge II tires are worth the money. :thumbsup: It sounds good to go out and have fun without studded tires, but you will get frustrated very fast. I am not trying to discourage you from trying, I am just pointing that out...
  24. That picture is worth a thousand words. Hey Kaos, is that the same one posted a while ago? I was looking for it or the one like it. It sure makes the 'splainin much easier... :biggrin:
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