Thanks again!
I checked up some engines ,vintage HMW´s, Sachs,etc. on german Epay, and also a great Villers lawn mover engine in UK, but trouble is international shipping, they dont see that international selling is giving higher prices than local?.....and also the shipping cost is real heay by the sellers... i need a trip down there later to find what i want direct i feel....to the right price...as i belive - ha,ha
The saw is great..function as h***,real strong! And this had got a major checkup before i got it. No,for sure,the ugly exhaust box is thrown away already! Gonna do some tweaking,and fabricate a new in "pipe" style. The pull start are i not sure of using yet. I did a lot of cutting away (the hole lower part of engine was made as one unit, gasoline, crank case and chain oil. (big ugly part) and the side cover with pull start was following this 3 units to be screwed on.........cutted away this mounts too.....but it got quite little now, and barely could be recognized of the original.
I will see if i´m making a new pull start cover and fastenings for it, or just go without.
Plans are jackshaft, or possible mock up a belt tranny /or gears, as a 2-stage gearbox, before going chain to the rear wheel. Sprocket on the chain is easier to find here, than to fabricate a slim big beltring fastened to the rim.
The pedalarms/crank are not of the wide style, and the engine fits barely between, but then straight in middle of frame, with no space for sideways movement to line up against the rear wheel. With a jackshaft/tranny, this problem is eliminated. As the engine is on pic, its clutch (centrifugal) is coming straight free of the rotating pedal, and when fanblades are cutted away on the other side, its spaced approx. 0.25 inch away from the left pedalarm.
Yeah, i know the possibility to bend, but one side pedal arm, i cant get the pedal shaft loose, and its gonna make trouble or possible ruin this old shaft to bend it right. And i dont want newer style crank, they dont look great!
Ratio?? dont know...I suppose im making a jackshaft/tranny, and put on some of the bigger rear chainsprocket from a 8-12 gear newer bike, and take a testride....if not anyone comes up with some preferences...
One factor by this build is that i haven't used lots of money on it, great to have fun, making a nice machine, without doing it expensive, and more fun finding solutions on own fabricating! New tires,tubes, grips and pedal rubber for the look,some new bearings, some bulbs for lightning, very cheap buy of battery and chainsaw, rest is reworked original items, and old stuff already laying around, or newly fabricated of steel/alu parts/sheet already in garage from earlier doings.Paint is leftover from my cars paintjob earlier this year, seat upholstry leftover from the car interior work, and the tools is there, to be used..... I think the bike as now, have a total of about $80-100 w/ bicyle cost .......but how many hours to do it..want be calculating! ;-)