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Thanks Alley and Sprocket Your advice was exactly correct. I just changed the roller weights and went to 5.8 gram from 6.5 and it made a world of difference. It has really helped with the scoots ability to climb hills and engine seems to have more power since it is in the power band.... Thanks again!

Bill

Thanks for the reply. It is appreciated. The CDI came from the JMStar donor scooter and the engine is 50cc. I have ordered a new performance CDI from ScrappyDog Scooters just to have a spare on hand but will install it when it arrives to see if it makes a difference. As for the throttle cable, I just checked and the throttle is rotating all the way to the stop on the carb.

Thanks again.
Bill

Project update:

Scooter is built and ready for the road so I started the process of acquiring a VIN. Since the frame was an "in process" item, no VIN had been issued for it. Michigan has a procedure for this. Basically, it entails extensive documentation for everything used in building the vehicle. Names, addresses, phone numbers, serial numbers, dates, etc....While building this scooter I entered everything I used into a spreadsheet so I had all of this data. All I had to do was make copies of all the receipts and print the spreadsheet. Not all that difficult. Also, a formal on road equipment inspection of the scooter had to be completed by a Michigan police officer. Here, it was verified that there was no VIN on the scooter, lights, horn, turn signals, etc are all verified to be operational and seat to handlebar height was correct. After that was done and the form completed I went to the Sec of States office (who does licensing in MI) and after a thorough examination of my paperwork I was issued a VIN and then proceeded with getting a moped tag for the scooter. It is now legal to drive on the road. A formal VIN tag will be prepared by the Bureau of Records and I will have to bring the scooter in to have the tag installed when notified that it is done. Time frame for this is 6 to 8 weeks but it is legal to ride now. I must give the Jackson, MI Sec of States office credit for making this process painless. They were very helpful and extremely well organized. Thanks for following along on my scooter build journey. Now I am going out to put some miles on the scooter and then on to scooter build #2

Thanks for the reply. I have seen this done (online pic's) on some scoots. When reversing the intake does it change the angle the carb is mounted at? If so, any problems with flooding/starving? I will keep this idea in mind though.

I am confident that the frame will stand up to the stress. These aren't the usual "electric" scoots that I have seen being sold recently. On my first build jct842 brought this subject up so I did the calculations

www.scooterdoc.proboards.com/index.cgi?board=customscootsmodsetc&action=display&thread=5515&page=1

and there actually was more steel cross sectional area in these frames as compared to a gas scoot. There is some real meat on these bones....

The original wheels are 10" but because it will be capable of higher speeds, I feel I may have to go with 12's. Of course 12's bring on their own set of problems as it will mean a "long" gy6 case which will change wheelbase length, etc... so right now I'm just trying to get a grasp on the 150 mounting issues. One bridge at a time.....

Thanks for your reply.

Bill

Thanks to all who have replied. Yes, runningslow, you are correct. I still have 3 scoots, new, in the shipping box that originally were destined to be electric powered. First of 4 is done, with the exception of acquiring a VIN for it and that process will start later this week. I don't expect any issues with that procedure as it looks straightforward and manageable but you never know.....So I am now contemplating build #2, hence my question on the 150's mount.