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Needing some direction please!!! Thanks!

This just keeps getting better and better. Quite an undertaking that's for sure! I need all the help/pictures/docs that you can spare on removing the engine completely from this scooter since I've come to the decision while failing to remove the bolt that broke in the head I'm just going to replace the entire head. Stupid me didn't realize there would be studs coming from the engine not bolts holding the head down. Duh! I should've known better. But it's a learning experience! I'm guessing it's as easy from where I'm at now all I have left is to pull the exhaust off and remove the swing arm. The wheel and once that happens the engine will slide back and I'll be able to remove the head or put the entire engine on the bench for that matter? Thanks and here are some pics on where I'm at currently...

See if you can wrap your head around this one.... I attempted and failed at a bolt extraction. It was my first go at it and I really didn't know what I was doing. I watched a youtube video... Does that count? Now I'm left to deal with a broken tip of a hardened screw extractor in the hole. I've unsuccessfully tried to drill that out and no luck! Now I'm wondering what my next step is. I was thinking I could do all this off of the bike much easier but removing what I think to be the head isn't as easy as I thought.  I remember the chain actually runs into there and I don't know much about removing that and putting it back on. So I'm at a cross roads so to speak! I'm not sure what my next move should be but I have an idea to put the intake back on with a good bolt on one side and jb weld the other side. Think that might work? What's an alternate idea? Help! Please!

Hear you on that one.... While I was just in the garage making sure there wasn't any air leaks I decided to take the intake off and check it just to make sure. Well..... you know how you try one things and it leads to another while this genius was putting it back together I tightened a bolt too tight and boom! It broke in half in the case. Now I've got to go out and get me a set of E-Z out or screw extractors. Never used them before but watched a youtube video just now. I have a new fuel pump coming Tue for good measure. Can't hurt? And once I get everything back together and I know the carb is clean as a whistle! I'll be getting me a new coil if it continues to act like this! Also tell me what you think. The old CDI box on this bike which appears to be original and scratched up will cut the engine out if I wiggle the plug wires that connect to it! It would seem like I have a lot of variables in play here..... Just giving you what is questionable to me? All I can do is one thing at a time. I have to continue to throw parts at it but I just want to get the darn thing running!

Moving right along. Since I've attached the air filter correctly and I'm starting the scooter and letting it warm up to temp then I'm starting to adjust the A/F screw and I know this. Starting at the factory default of all the way in and 2 1/2 turns out.... The scooter wants to bog down... So I gradually adjust the screw out a 1/4 of a turn and by the time I've reached several turns out the scooter bogs down even worse to the point of dyeing out. What does this mean?

alley..... Tell me what you think about this? I thought I might have a problem on my hands when the air cleaner arrived today. It wouldn't fit as you can see in the pictures... I scratched my head   in curiosity as to which way it went... And then it hit me when I was searching on the Google and found a pic of how it should be. It was then that I realized the extra extension that was coming off of the intake shouldn't be there. So once I pulled that off everything else fell into place. Also my neighbor helped me clean up the wiring. All in all making progress. Next thing tomorrow is crank her up... let her get up to temp and start trying to make adjustments on the A/F screw and hopefully I can get this thing lined out. I've got a new fuel pump on it's way as well for good measure. Something is got me going in the direction of my fuel flow aka fuel pump and the enricher either not working or not turning off.

mxmatt just for grins.... I'm entertaining the notion of getting the 08 Roketa 250 running, selling, and putting that towards a new 150. Any suggestions on one? Which model did you purchase? Where? How has it been for you? This also applies to anyone that may want to add their 2 cents. I'm not looking for anything other than suggestions on reliable 150cc scooters that you may have owned or know someone that has great luck. Please specify website/model.... Thanks!