AKheathen Posted August 9, 2010 Report Share Posted August 9, 2010 drill the holes out to 10mm then turn the timing plate to the right then tighten the bolts put some lock tight on the threats put the head on and measure the squish first. then you will know how much you can mill. you can often just cut .030" and call it a day. you generally want to keep close to .040"squish. it also depends on bore size as to what will keep you on 93oct zone with the timing bump. as for the plate, you will need a 3/8-10mm carbide burr bit to slot the flat surface over. you can go +5.5 by slotting it to the the side of the pickup mount on the bottom hole. you will see what i'm talking about. then use a 1/4" bit to slot the holes over to match. if you don't have the tools already to do it, and aren't going to use them other than this one thing, it's not woth it to do, but it's a fun project just to do. neasurements, are- 4mm= about 4.5-4.6 degrees timing, if i remember right. an aftermarket plate is cheaper than the tools to do it. too much timing will start to take off from the topend. most people like +4 as a good ballance for anywhere from trails to dune, but your preference needs/setup can differ. i'm not sure what drilling the holes out will do other than letting the screws go through the plate, instead of holding it Quote Link to comment Share on other sites More sharing options...
JamesB88 Posted August 13, 2010 Author Report Share Posted August 13, 2010 Put the bike all back together, Head milled 2/100th of a inch, new base gasket, rings, and head gasket.. It started right up, before I had to give it some gas to get it to start.. It tooke me about a hour to get the damn flywheel off, I pulled one of the bolts and out to find that some one had already notched the holes and advanced the timing. But atleast I got to clean alot of dust out from the inside of the cover/flywheel.. I'm just hoping now that they had not already milled the head also.... Quote Link to comment Share on other sites More sharing options...
RadarRacing Posted August 13, 2010 Report Share Posted August 13, 2010 James I'm a KC guy too I have em cut in olathe. If you check your squish and its too tight just do the math to get your squish to .040 or .045 and get a thicker base gasket to raise the cyls and head up to get it to .040. Raising.it 020 or .030. Will be ok it will just rev a bit higher on the topend and add a hp or two. Quote Link to comment Share on other sites More sharing options...
JamesB88 Posted August 13, 2010 Author Report Share Posted August 13, 2010 James I'm a KC guy too I have em cut in olathe. If you check your squish and its too tight just do the math to get your squish to .040 or .045 and get a thicker base gasket to raise the cyls and head up to get it to .040. Raising.it 020 or .030. Will be ok it will just rev a bit higher on the topend and add a hp or two. Thanks for info. Bike ran fine for me in stock forumn, just figured might as well do a few cheap mods while I had it apart. I live up near Smithville, just alittle north of KC. Quote Link to comment Share on other sites More sharing options...
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