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ReconRat

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ReconRat last won the day on November 24 2018

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About ReconRat

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    Senior Member
  • Birthday 05/03/1950

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  • Name
    Tommy TuTone
  • Location
    Columbus, Ohio
  • Bike(s)
    02/07 919² and a pile of parts...

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  1. ReconRat

    Sudden Power Failure

    unburned fuel in the exhaust can be a backfire when and if it detonates. Or in the case of old Toyotas, it can fragment the catalytic converter into little pieces and lift the car several feet off the ground...
  2. ReconRat

    fasteners, lock washers are bad.

    That's true. Maybe I got that backwards. Now I'll have to look it up. I do remember using those special beveled washers for special bolts. edit: Yup, sharp side should be down. Rounded side always against bolt or machine screw radius. Keeping the bolt from breaking is more important than the surface below the washer.
  3. ReconRat

    Sudden Power Failure

    Get a pair of plugs too. Might need them for getting it all back in order. You can always put the old ones back in and keep the new ones as spares. Also check to see if it's the right plug, you never know... edit: If you're really cheap like I used to be, and it's only one plug looks bad, swap the plugs between cylinders and see if the problem moves. Then it's either a plug or the firing of a plug.
  4. ReconRat

    Sudden Power Failure

    Not the first thing I'd try. If you can smell the fuel, it's flowing but it isn't igniting. Might be electrical problem, might be the spark timing. Check the plugs first. See if both are the same (for a Harley with the rear cylinder hotter) correct color. See if one or both are wet from not fully firing fuel. How many coils it got? One? Might want to check the coil with a VOM for correct resistance on both sides. edit: an easy way to see if one cylinder is goofed is to check the temps of the exhaust right after it starts up. Don't touch it, but put hand up there and see if one warms up way faster than the other.
  5. ReconRat

    fasteners, lock washers are bad.

    Dunno, never thought about Euro metric. And yes, the JIS bits with a T-handle set is a must have, for a Japanese bike.
  6. ReconRat

    fasteners, lock washers are bad.

    Not too sure about some of that "engineer" list. Kinda strange. Aerospace has it's own rules. The list of rules was long (Two big manuals full of rules and requirements). We didn't use common lock washers. We did sometimes use inside or outside star washers, in electronics, for grounding. We used a lot of safety wire. We used self locking nuts, especially self locking nutplates that rivet into place on sheet metal. No one puts threads in shear, that's a failure waiting to happen. A minimum of 4 threads in bearing required, 6 to 8 preferred. We never ever put a bolt (some types of bolts are ok), nut or lock washer against a part without a plain washer in-between. Plain washers are punched out of sheet metal, and have a sharp side vs a rounded side; put the rounded side against your part and the sharp side up in the air. (edit: Backwards! sharp side goes down, and the rounded side goes under the bolt or machine screw to prevent contact at the radius under the head and trying to break it.) The torque from the bolt side isn't the same as the nut side, if it's a through bolt with a nut, torque the nut. Torque requirements are strict, and doesn't include "torquing to yield" or " turn it an extra 90 degrees". Hardware of all types is never re-used more than 4 times, and then it's replaced with new. It slowly deforms to failure. Zero cadmium plate, we used zinc plate. All steel hardware was zinc plated. Certain metals never contact each other, it generates di-electric corrosion. The common error is stainless steel and aluminum in contact. Titanium and aluminum in contact is a disaster. I don't remember using chromed hardware anywhere. That's a few of the highlights. Note: Japanese motorcycles use a different type of Phillips (JIS). Striping (cam-out) is common, when using SAE phillips tools. There's special JIS screwdrivers and bits for them. I don't always use them, but I've got them. You can find them on Amazon, or motorcycle tool websites. Or replace them all with socket head cap screws. Read aircraft hardware: https://www.flight-mechanic.com/category/aircraft-materials-processes-and-hardware/
  7. ReconRat

    Motorcyclist Killed by Lightning

    Yes, massive hit. But the crash after that was pretty severe also. Just don't know. I want to add, that lightning strikes can occur well in front of an approaching storm. In the clear dry air, when a motorcycle might be trying to outrun the storm. It's something to do with the mix of cold and hot air in front of a moving front that carries a thunderstorm.
  8. ReconRat

    Yamahademover

    Well, what's next? Add one more rear wheel and actually have some stability (or less)? Why not?
  9. ReconRat

    Motorcyclist Killed by Lightning

    That was a few miles North of me on I-95. Wasn't the first time and won't be the last. There was another rider hit last year. Happens here more often. If nothing else, the general area is the lightning capital of the world. I use apps on the phone to warn me. You can also buy a stand alone lightning alarm, for hunters, fishermen, hikers, etc. edit: Not sure the lightning was fatal, it apparently knocked him out and he crashed at freeway speeds. Hard to say.
  10. ReconRat

    Lettuce discuss washing

    oops, correct... that's what I was using it for.
  11. ReconRat

    Lettuce discuss washing

    I tried the S100 stuff. It seemed to degrease and/or brighten things pretty well. I leave it for last to get the hard to remove crap and funky looking spots. I use the Honda quick spray and one of the wax that dries clear. Clear drying lets you protect some places that are hard to buff out. Any car wash works for me, even Dawn or Ivory dish soap. Don't care. (Ivory used to be an industrial grease cutter, or so they say...) edit: as Tonik pointed out, dish soap will generally remove your old wax.
  12. Now wondering what was I thinking... I've straightened a few from the 60s, by just putting them on a block of wood and hitting them with a big hammer. None of them ever broke. But I wouldn't overdo it, there are limits. I think it would make a big difference whether it was cast or drawn/forged/machined. Cast will break without much help. That bike master lever was probably cast. Yes, castings will break just yanking on them with your hand. It only requires a weak spot, like one little flaw in the casting grain of the metal.
  13. ReconRat

    Exhaust backpressure

    In general, individual pipes and cans perform better at higher rpms and produce better horsepower. Headers or collectors, combining into less cans tend to perform better at lower rpms and improve torque. Pipe diameter should increase in size from the collector back. My basic rule, if high compression or high redline engine, go for the horsepower with the singles. If low compression, low rpm, torque engine, high displacement, etc type thing, go for the torque with a single or dual can setup. The cam design plays in too. The cam might be either high rpm or low rpm usage. Mix parts wrong and it won't work too well. The other truth. When seeking performance of any kind, improve the electrical primary and secondary first. Then work on the rest. Performance changes can degrade the electrical quickly. Not to mention that if you do electrical last, you pretty much have to go back and start over on all the rest.
  14. ReconRat

    Exhaust backpressure

    Nope, but I've run design calculations on exhaust systems to see what is right and wrong. Typically Honda does it exactly right, per the book. Length, diameter, etc. And I will say my one 919 had gutted baffles, and didn't run for crap at lower rpms. I replaced with used stock cans from ebay and it runs great. The right amount of back pressure is tricky. It depends on restrictions, flow volumes and velocities, size of valves, cam duration and lift, compression, rpms, etc. And the right amount will vary for various desired results.
  15. ReconRat

    Screenshot_20190416-194008.png

    I had a St Bernard pull up along side my motorcycle at 35mph and open his mouth to bite my leg. Yeah, moved my leg and hit the gas. No, dogs aren't supposed to be able to run that fast.
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