NEW Scooter NOT running right.

[rks]

I hate to say this again, but....did you perform a PDI on this scooter before running it? It is a very necessary procedure when purchasing a Chinese scooter.

You say it has spark....so it probably is fuel starvation. That sounds like fuel or vac lines...sometimes they come from the factory way longer than need be....did you get one pinched under the seat bucket when reinstalling it? Make sure fuel tank vent is working also, yours probably runs to a small plastic canister on the frame near the seat.

I would pull the valve cover, check the gaps. I hope you changed the oil your scooter came with.

50 mph with only 20 miles on the scooter.....not a good idea. But then again, it is your scooter. Good luck finding this bug and correcting it, and do a good PDI, or this will be just the first, of many more to come.

[gmcjetpilot]

Originally Posted by rks

I hate to say this again, but....did you perform a PDI on this scooter before running it? It is a very necessary procedure when purchasing a Chinese scooter.

Well after I took it out of the crate, and put some items on, I did give it a once over. The manual says keep the break in oil for 150 miles. Why change it? I'll do that now, just asking. Is there something wrong with the factory delivered oil? I plan on going to mobile one at some point, but for now I will use basic oil.

You say it has spark....so it probably is fuel starvation. That sounds like fuel or vac lines...sometimes they come from the factory way longer than need be....did you get one pinched under the seat bucket when reinstalling it? Make sure fuel tank vent is working also, yours probably runs to a small plastic canister on the frame near the seat.

Yes I thought of the seat bucket pinching something. I'll check.

I would pull the valve cover, check the gaps. I hope you changed the oil your scooter came with.

I will do that but the symptoms are not valve, I think. Agree. However I will give it a check, can't hurt.

50 mph with only 20 miles on the scooter.....not a good idea. But then again, it is your scooter. Good luck finding this bug and correcting it, and do a good PDI, or this will be just the first, of many more to come.

Yep keeping it under 60km/h or about 40mph. I went to 50 mph for a brief period, just for fun... shame on me.

[Smaug]

Originally Posted by gmcjetpilot

Well after I took it out of the crate, and put some items on, I did give it a once over. The manual says keep the break in oil for 150 miles. Why change it? I'll do that now, just asking. Is there something wrong with the factory delivered oil? I plan on going to mobile one at some point, but for now I will use basic oil.

The break-in oil will have all the sharp edges and dust/sludge that gets knocked off the inside of the engine. You've GOT to change that on Chinese stuff. Change or clean the oil filter too. It's not well-made enough to skip that. But that's not what's causing your lack of power.

Valve clearances would be the next thing I'd do, I think.

[gmcjetpilot]

Originally Posted by Smaug

The break-in oil will have all the sharp edges and dust/sludge that gets knocked off the inside of the engine. You've GOT to change that on Chinese stuff. Change or clean the oil filter too. It's not well-made enough to skip that. But that's not what's causing your lack of power.

Valve clearances would be the next thing I'd do, I think.

Thanks for the info. I'll go ahead and change the oil and adjust valves. I'm going to go with regular high quality oil, like 10-40W for the next hundred miles. Then I'm switching to synthetic, Mobil 1.

[gmcjetpilot]

I changed the oil at 45 miles. I have to say it looked good and was oil. Am not going synthetic or blend until I get 150 miles.

The valves were checked. The intake was spot on 0.004" and did not need to adjust. The data tag says 0.003 to 0.005 for intake.

The exhaust was too tight, under 0.005 even under 0.004, so I adjusted it. The data tag says 0.005 to 0.007. I went with 0.006, but think I will go back to 0.005"

It is running fine. I think the new battery and drilling the 3/32 hole in gas cap did the trick....