The coils have gone bad on my Suzuki SV650 racebike again. I do not want to replace with OEM, since they are obviously questionable. This system is an...
... The CDI-unit wont be any warmer than usual because the circuitry is charging a capacitor and the capacitor is being discharge over the coil by a thyristor...
The system is inductive, not CDI. So instead of a thyristor it is probably an IGBT. I am also aware that I am pushing the current, that is why I am concerned ...
... That's very high - OEM coils are often 3 - 3.5 ohm but 5 seems very high. MoTec systems don't like anything above 1 ohm. Cheers IAN...
D.M.Co.
iwd@...
Jun 6, 2005 12:04 am
8680
Service manual says between 3.5 and 5.5 ohm, and every one I have measured is pretty much spot on 5ohm. Yup, pretty high, and not the best for high-RPM use....
Guys, It's been a bit quiet the last few days so I have taken the liberty of asking an OT (sort of) question because I know that we have a wide range of...
Some more info: I have an old ignition box that someone donated, and I have removed most of the potting. There are two power transistors in there, with D1976...
Greg I too am an electrical engineer and can't give a definitive answer but consider the following. As long as you have removed the negitive half waves, you...
... Peter, Yes, this is the sort of intuitive 'feeling' I have .... but I am still not certain enough to do it this way without testing that I am correct. Half...
... Why the doubts, guys, you are right of course ! ... 1) See a B-H diagram, you have to reverse the field to zero the induced magnetism. 2) Even if you...
Nandan
saffrontsunami@...
Jun 7, 2005 6:38 pm
8687
... Yes Jordan, it certainly would, in fact it was my first consideration when I decided to build one. However,when you do the calcs to get 70,000 Ampere-turns...
... Just don't forget to take your credit cards out of your pocket before you start ;) Peter __________________________________________________ Do You Yahoo!? ...
I've heard capacitors are sometimes used, to give a big pulse of current. Beyond my ken, but could that help back up the battery power, and reduce the...
Jordan, Capacitors act like temporary batteries so they would not work to help charge your battery. To the contrary a capacitor in the battery circuit may...
You are more likely to get it to work by using an inductor and designing a resonant circuit to create voltage spikes - but you would have to know what you were...
... Yes Jordan. I believe that some magnetisers charge BIG capacitors to high voltages (and hence, high stored energies) slowly from a small current supply ...
Well, I'm partly right. Capacitive-discharge magnetisers are common enough it seems, but are generally powered from mains I think. Lots of info on internet,...
I have been lurking for some time without making a contribution, but now I can share some of my BBC Radio training with you on this subject - I learned this as...
... Thanks Mike. Yes, I've come to the same conclusion after been reading an old text book of my grandfathers' that I found while searching for another book ...
Hi, This regards a tuned MZ ETZ250 two-stroke single cylinder motor. I have been contemplating the use of a twin plug cylinder head and was wondering of the...
Urco, I think the short answer to this question is that you won't know unless you try it. A lot of engineering developments have started from that "what if" ...
RohanB
rohan3333@...
Jun 15, 2005 11:44 pm
8698
... As a tuner and racer of ETZ250s I would hazard a guess at the waste of time .. from a practical point of view, reasons being: (i) the Motoplatt or PVL ...
... how about a motor with a 5" or greater bore? I would agree there is probably nothing to gain. he may however be able to stagger the spark timing and induce...
... cylinder ... a ... angle ... tho' ... two ... so ... be ... waste of time ... Motoplatt or PVL ... certainly the ... never any ... (fine wire ... there ......
Hi People, couple of months ago I posted something similar but didnt have any info. got this sent to me last week http://rbowes1.11net.com/dbowes/ Model...
... OK, I see where you are going with the double-ended coil - but that is a battery-powered unit, the magneto types have the triggering mechanism inside the...
Cap'n Cap'n, engineering report the engine has maxxed out at 101 rpm, what do we do now ?? Wonder how long it takes to get somewhere, and how much fuel they...
RohanB
rohan3333@...
Jun 21, 2005 12:14 am
8705
... Completely different scale, but my friends have just finished their new 3.6 litre / 150 hp 9 cylinder radial engine. http://www.rotecradialengines.com ...
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