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Message: [QUOTE="reepicheep, post: 1422340, member: 104942"] Update again... finally got it to make smoke this weekend, and boy does this thing run nice. Even without the right jets, it starts great and pulls *hard*. Even with my way overweight butt on the seat, and some coughing at high RPM, it would do roll on throttle only wheelies in the first three gears from mid RPM's on up. It feels like exactly what I wanted it to be, which is a "mini-me" KDX-220. The whole rebuild went well. The weisco crank kit had all the gaskets, seals, and the main bearings for the bottom end. I didn't replace all the other little bearings (shifter drum, etc) as they were in good shape. I replaced them all when I rebuilt my KDX, and it was just a waste of money to replace perfectly good bearings. The top end went well also. The replate and porting from Eric Gorr was perfect, and the bike runs and pulls great. I didn't recognize the piston as Wiseco this time, and didn't recognize the brand. That doesn't mean it's a bad piston, I haven't researched it yet. And maybe it doesn't matter so much on a 100, where the piston is less stressed than a big bore bike anyway. The FMF Q series is unbelievably good. Amazingly quiet (yay!), and pulls hard. Most of the noise is coming from the header / expansion chamber (which means it won't carry). The FMF Gnarly header I got was for a 100, and apparently the exhaust port diameter is bigger. So while it looks like it would bolt up right, it won't fit in the head. I just used the stock header instead, which seems to be working well, and isn't very heavy on this bike, so I'll probably just stick with that for the time being. The bike for sure is not hurting for power. The kickstand is coming along well. I had a spare that came in a parts box with a buddies used KDX-220 (that was NOT for a KDX-220, I think its for some suzuki 4 stroke or something). It was on the KX-60, but was really too long for that bike. So I pulled it off, and brought it over. I had to cut off a long top tab on the bracket, and drill a new hole, but it would actually fit in very nicely. The top bolt went through the idler, the bottom bolt went through the old side stand tube. I had to cut down that tube (as it stuck out), and because the back side of that tube would interfere with the idler pulley if I had a nut on there, I tried filling the hole with weld and tapping it out so I can just bolt it straight in. It worked OK, but the stand bracket was angled out (bad, as it was unsupported) and I didn't have the right drill bit size to be able to tap it nicely... it worked, but I need to redo it (now that i have the right bits). I'll build up an angled ramp (probably grind down a nut into a ramp and weld it on after filling the hole again). I was chicken about frying an expensive CDI, so I used oxy actylene instead of MIG. Last night I started my quest to lower it (my 11 year old is a bit small for it, but his KX-60 just had too small a front wheel for where we ride, it won't climb over rocks). I had sourced a cheap set of rear shock dog bones off ebay. I cut those, and welded in about a 28mm section of bar stock. This REALLY dropped the bike, unladen, it probably dropped 6-8 inches. That's either "too much" or "the maximum you would ever want to try". I'll have to watch the kid bounce it over a few curbs and see what rubs to tell. I'd like to make it taller (maybe 4 inch drop), so I'll probably pull them back out and take 4mm off their length. For what it's worth, you will have a hard time welding them with a 110v MIG unit... I started there and it wasn't going well, but when I switched back to Oxy/Act it went fantastic. I'd say instead of 28mm that 20mm to 23mm would be a better starting point. I dropped the front triple clamps on the forks as far as they would go as well... to the bottom of the raised section the top clamp engages. No idea if I have created stability or handling problems yet, the bike hasn't moved. Its got a really low long look to it though, so it'll be a mean little hill climber. Ground clearance obviously suffered... but its still as good or better than an XR-80. The fact that i used spare dog bones cheap off ebay means that I can put it back to stock in about 20 minutes, and keep cutting and welding the old bones every few months as he grows and gets more comfortable with a taller bike. I'll post up some detail pictures when I get it all sorted, showing the dog bones and side stand fabrications. I'll post up final jetting as well once I get that sorted. [/QUOTE]

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