Top speed Peace Sports 50cc By thbell1 (Read 866 times)

[thbell1]

I'll order some 4 gram weights to achieve low end torque and top speed of 25 mph (the speed limit in my community).
Still worried about RPM's though.
Thanks for your patience with a neophyte scooter owner.
T.

[jct842]

You can mix weights too if you make sure the same sizes are opposite each other, so that the balance is not effected.

[thbell1]

Got new 4 gram rollers, fuel filter, and hose from Scooter Parts. It is back together, starts, and runs.
I now cannot get the engine to Rev to what my ear would tell me is full throttle - it seem to log a bit at full throttle.
Although the scooter has roughly 1600 hundred mile on it is was not used since 2014. Apparently the carb still has old fuel residue and I am reluctant to order a kit as there is no discernible numbers I can see so the only I'D is 2009 Bashan 49 cc Peace Sports.
Any "mechanic in a can" that you have used in the carb or added to the fuel that I could try before removing the carb?

[daddymark66]

These carbs are pretty basic. Just work on a protected surface like a newspaper. I use a pen or marker as I'm taking it apart to draw circles on the paper and notes about the location of the parts. Most have different size screws so make sure everything goes back in the right place. Get some good carb solvent and put the parts in a can or plastic jug (make sure it's very clean) and spray down or soak the parts. I use a cheap toothbrush in a kids size to scrub everything. Be careful when you get to the float and needles parts. The float is plastic and can be broken easily. The needle has a small clip that holds it to the float. You can scrub everything else though. If all else fails, new carbs are super cheap. Get some good gloves the black ones work well so you don't smell like gas and solvent for a few days afterward!

[thbell1]

Removed carb, cleaned, and reinstalled. The only part I was not sure where it came from was a tiny (3/26") O ring so I guessed. I checked suction from manifold which seemed adequate and made sure vacuum opened the gas valve. I also cleaned the gas valve tube into the tank which was scuzzy.
When I tried to restart the scooter gas comes out of the throat of the carb. ??
The carb is an HK CVK. What are the odds of getting one that matches?

[scotx50]

Apr 27, 2017 20:09:50 GMT -6 thbell1 said:

Removed carb, cleaned, and reinstalled. The only part I was not sure where it came from was a tiny (3/26") O ring so I guessed. I checked suction from manifold which seemed adequate and made sure vacuum opened the gas valve. I also cleaned the gas valve tube into the tank which was scuzzy.
When I tried to restart the scooter gas comes out of the throat of the carb. ??
The carb is an HK CVK. What are the odds of getting one that matches?

That O ring goes on the under that little side plate. You will see where when,you remove the screw

[scotx50]

Apr 27, 2017 20:09:50 GMT -6 thbell1 said:

Removed carb, cleaned, and reinstalled. The only part I was not sure where it came from was a tiny (3/26") O ring so I guessed. I checked suction from manifold which seemed adequate and made sure vacuum opened the gas valve. I also cleaned the gas valve tube into the tank which was scuzzy.
When I tried to restart the scooter gas comes out of the throat of the carb. ??
The carb is an HK CVK. What are the odds of getting one that matches?

There's a little side plate it seals one of the ports

[thbell1]

Put the "O" ring in the correct place, reinstalled, and started scooter with the help of some starter fluid. It was difficult to get it above idle, but revving it gently and it finally made me smile for the first time since I got this scooter. However, it seemed to choke out and die at which point raw gas started running out the air box for a minute or two (maybe a couple of tablespoons).
After it sat while I changed oil and gear lube it started, but again would not Rev up for a bit. I leT it idle until it choked out and them came the gas.
What now?

[thbell1]

Finally got the carb put together correctly and reinstalling several times to remember where the hoses went. Anyway, success with both the original carb as well as the new one I purchased (the new one is somewhat better).
The scooter now goes 30 mph which is adequate for the use I have for it (although I thought the 50 cc scooters were supposed to go 40-45.
Thanks for your advice and help without which would have turned a bad purchase into trash for the garbage man.
T.Bell