what may of happened is you put the piston to 80* atdc and drew the line. on small engines the width of the pencil mark can be 1* so you end up going 1* to high . depending on the stroke of the engine im dealing with i stop half to one degree short to account for the pencil width
if cylinders are same height, using same gasket, all bolts torqued same, degree wheel set deads nuts, you shouldnt have any discrepencies unless you grinded beyond the pencil marks. most people fail because they dont pay attention to the things i just listed
i wonder how many of these chariot baskets minkia has sold for $189 when you can get it from chariot for $169. minkia doesnt seem like a very sharp feller
http://www.ebay.com/itm/NEW-Chariot-Billet-aftermarket-YAMAHA-Banshee-aluminum-CLUTCH-basket-cushions-/272029998266?hash=item3f56405cba:g:N-IAAOSwwbdWO2Bo&vxp=mtr
http://www.ebay.com/itm/Chariot-Clutch-Basket-Banshee-Hard-Anodized-4130-plate-7-or-8-plate-Cushions-/281833872477?hash=item419e9b9c5d:g:vn8AAOSwYHxWJlQr&vxp=mtr
pretty cool how the dime sticks. magic tricks FTW
if you dont mind my .02 im not sure those boyesens will be all that affective since theyre nearly paralell with the wall, atleast thats how they appear in the photo. heres what i believe will happen, if you had a hallway with a room at the end, and 2 open doorways near the end of the hall which connect to the big room and big fan pulling extremely fast moving air through the hall. in laymen terms i think the air will simply pass right by the doors as if they werent there. this is just what i believe will happen so dont take it the wrong way. these boyesens seem to be half decent http://bansheehq.com/forums/index.php?/topic/183954-4mil-complete-top-end-drag-ported-stock-cylinders-domes-pistons/page-1
Normally I'm against giving people a hard time but even without a ounce of mechanic aptitude wouldn't common sense kick in and guide the way. Used complete oem switch is $8 on ebay ffs
I never had much luck with flat roofs. Tried it on a Honda and chewed the rings pretty fast. On my 4mil everything is mostly opposite of what Tom describes so it'll be interesting to see how it turns out. That post from Tom is over 10yrs old. I wonder if he would still recommend the same specs or maybe times have changed
I don't see anything wrong with the look or air tools but you have to be careful about raising ports that high or strange things can happen as many of us have found out. Normally I recommend starting off with them a bit lower but everyone needs to see for their self
His specs were to make the exh that shape or was that your own idea ? I have a feeling he may have only gave you a small bit of info and not the whole book. Look man I was just saying don't cry if they're door stoppers. Wasn't trying to be a dick. It's just part of the business. Call it School of hard knocks if you will
Finish up and try em out. Just don't be suprised if they're not all that and a bag of chips. Anyone in this business has scrap cylinders I can a sure you of that, unless they copied a known good port but where's the challenge in copying