Archived posting to the Leica Users Group, 2003/12/06
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At 2:33 PM -0700 12/6/03, John Collier wrote:
>As you all know I am building up a 125 engine using an ETS cylinder,
>piston, head and a 100 sport engine as a base. I have had my local 2
>stroke shop bore the cylinder. They did a great job and beveled the
>ports nicely too. I also had them deck the head and cylinder and
>o-ring the cylinder. This is a narrow groove into which you insert
>stainless wire; simple, cheap and it works. I also have rounded up
>some inexpensive nos vmb cases (dunno why but they were half price),
>a four speed conversion kit and a primavera primary gear set. Still
>to go is polishing and match porting the cases, cylinder, piston and
>manifolds. I am also going to try and source a PK multi spring
>clutch for no particular reason I can think off.
>
>So far so good and PLEASE nobody ask how much this has all cost!
>Remember I got the bike for free :-)
>
>Now I have a stock crank and a 100 sport flywheel and I would like
>to go to a lighter flywheel. This leaves me with two options. First,
>lighten the 100 sport flywheel and stay with the stock crank. Is it
>easy to do or is it also easy for an inexperienced person to machine
>the magnets off? Second, get a XL crank large taper crank and a HP
>flywheel; more money but stronger. Can I keep the 12v battery set
>up with an HP flywheel? Someone told me I couldn't and someone told
>me I could. Dunno who is right.
>
>I would greatly appreciate direction here. While money is not too
>much of a concern, if the stock set up is fine then I might as well
>go that way.
>
>Finally I see that you can get a shorter fourth gear kit. I assume
>this tightens up the jump from third to fourth and allows you to get
>a higher top speed by taking advantage of higher revs. Is this a
>good idea or is it more for a hopped up, narrow power band engine.
>
>Just plain ignorant in Edmonton,
>
>John
Dunno. Sounds like you might get frame overlap no matter what M
camera you put it on. Won't do much for the scotch, either.
- --
* Henning J. Wulff
/|\ Wulff Photography & Design
/###\ mailto:henningw@archiphoto.com
|[ ]| http://www.archiphoto.com
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