Advice on 150cc Scooter Upgrades?
I want to upgrade a few parts on my scooter but don't really know how much it will help.
What do you guys think about this...
I have a 150cc Scooter with a GY6 Engine, Model # ZN150T-E
or
http://www.scooterdepot.us/SSR-150cc-Vintage-Fully-Auto-with-Air-cooled-Moped-Scooter-p-594.html
Currently all I have done is a Synthetic 15w 50 Oil Change
I want to upgrade to:
NGK CR7HIX Iridium Spark Plug $13
Mikuni High Flow Fuel Valve Pump $30
Air Filter EMGO 48mm $20
GY6 Big Bore Manifold Intake $40
What do you think?
Will it all help?
What would you add, remove, or change?
Mainly looking for more speed, it hits like 53 mph
Id like to go up to 60 mph and help so it wont ever brake down on me randomly
Thanks
You're off to a good start but you won't feel that much of a difference. I don't advise changing the air filter and intake without changing the exhaust as well. That amount of new air incoming to the carb has to have a place to go!
Also, if you change the filter and intake, you're basically allowing more air to enter the carb. This will create a lean condition. You will need to up-jet your carb as well to balance this change.
Your other option is to work on your CVT tranny. 53 mph is pretty slow for a 150 cc 4-stroke engine. Have you ever changed your rollers in the variator before? It sounds like they are pretty heavy. Take the cover off and check for flat spots. They need to be perfectly round. Weigh the rollers seperate. Replace the rollers if needed. Doesn't hurt to go .5grams less weight per roller either. This will bring your operating RPM's higher thus producing better power for your scooter.
Also, check for a washer that is on the shaft between the variator halves. This is installed by the factory to restrict speed, not allowing the pulleys to reach full ratio.
Remove the washer if it's there and re-assemble.
Just doing the variator alone can raise your mph by 10 if you remove the restriction.
Any other questions, feel free to click on my name and IM or email me. I can help you out directly that way with part numbers and progress if you need.
Good luck.
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