Author Topic: R.P.M @ 60 (55)  (Read 9142 times)

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jimsE

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Reply #15 on: March 16, 2008, 01:52:27 am
baird4444,
Thanks for the link to "tinytach".  I guess REs have one spark for each revolution(wasted spark on the exhaust stroke).  Right?
Thanks,  Jim
2008 Electra, smiling jim


baird4444

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Reply #16 on: March 16, 2008, 03:25:18 am
I think that is correct but don't quote me. I never bothered remembering that one cause I didn't plan on ever getting the tach.
                                                              - Mike
'My dear you are ugly,
 but tomorrow I shall be sober and you will still be ugly'
 - Winston Churchill


birdmove

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Reply #17 on: March 16, 2008, 05:04:20 am
   I'm going to bet that the Bullet does not spark on every stroke. Why? Because if they did,then when you used the method of parking the bike with the piston at TDC on compression stroke, said method wouldn't work.You apply the compression release, and turn key on.Ease the kick start over till you see the ampmeter needle go to the far left, then a bit more till it comes back to the right. If this thing fired a spark on every revolution, then this method would not find TDC on compression stroke--but just TDC period.
    Someone smarter then me tell me if I'm right or wrong please.

    jon
Jon in Keaau, Hawaii


cyrusb

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Reply #18 on: March 16, 2008, 01:36:40 pm
The ratio of crank to  cams and distributor is 2:1.  Dist turns half engine speed.
2005E Fixed and or Replaced: ignition, fenders,chainguard,wires,carb,headlight,seat,tailight,sprockets,chain,shock springs,fork springs, exhaust system, horn,shifter,clutch arm, trafficators,crankcase vent.


Trapper

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Reply #19 on: March 17, 2008, 01:09:40 am
I have an xls spreadsheet calulator for this. With a 17t sprocket, I get 4200 rpm for 65mph, 3800 for 60.


Bankerdanny

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Reply #20 on: March 17, 2008, 03:55:40 pm
dead on, balls accurate?

That's Marisa Tomei's line in My Cousin Vinny. She's the daughter of a mechanic who clinches the mystery of an armed robbery at the end of a lost-cause trial.

http://www.youtube.com/watch?v=DhL5exi_avE

Jeff

Ah, my friend, I got the reference. I was hoping you would give me the follow up: "It's an industry term."
Endeavor To Persevere

Current: '75 Honda CB550F, '76 Honda CB750F. Previous:  2007 Yamaha Vino 125, '75 Harley FXE Superglide, '77 GL1000 Goldwing, '77 Honda CB550K, '02 Royal Enfield Bullet 500ES, '68 Suzuki K11, '68 Yamaha YR2, '69 BMW R69S, '71 Honda SL175


jdrouin

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Reply #21 on: March 17, 2008, 09:30:04 pm
Quote
Ah, my friend, I got the reference. I was hoping you would give me the follow up: "It's an industry term."

Alas, my own memory of the sketch was not up to par!

Jeff


Bankerdanny

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Reply #22 on: March 17, 2008, 09:41:26 pm
Shame on you, neglecting the classics   ;)
Endeavor To Persevere

Current: '75 Honda CB550F, '76 Honda CB750F. Previous:  2007 Yamaha Vino 125, '75 Harley FXE Superglide, '77 GL1000 Goldwing, '77 Honda CB550K, '02 Royal Enfield Bullet 500ES, '68 Suzuki K11, '68 Yamaha YR2, '69 BMW R69S, '71 Honda SL175