Hello I'm new to the forum. Just recently bought the Velocity 150cc Mp-6k model. It has run great for the 500 miles i have had it except for recently. when i first got it i changed the spark plug changed the oil and the gear oil. It rode great. then recently i noticed. whenever i would start it on the center stand and roll off of the stand it would stall. any kind of sudden drop or bump it would stall. I have the Mikuni Pulse pump on it also.... after i noticed it was doing this problem i also noticed whenever i would travel at top speed for a little bit at any stop sign or traffic light i would press the brakes and it would make the engine gradually idle lower and then just come to a rolling stop. I'm not sure what this problem could be. So when i come to a stop i must work the gas and the brakes at the same time to keep it running. I changed out all the vacuum and fuel lines after i first encountered this problem still no difference. Before all this started happening i did notice when i pressed the brakes it made the engine idle a little rougher.... it wasn't like that the first few hundred miles. any help would be greatly appreciated. trying to keep this thing running because i will be taking it to school in a couple months.
Can you make the engine die by just shaking the scoot with the engine idling? If so the carb float may be sinking, causing a rich condition that kills the engine.
A belt that's dragging while the engine is idling might do it. The idle speed may be too fast. Does the rear wheel spin while the engine is idling, on the center stand? If so try reducing the idle speed.
Sometimes a tight valve will give idle problems, of various sorts. Check the adjustment.
Yes you can make the scoot die just by shaking it. what does it mean that the carb float is sinking? Is that an easy fix? Sometimes when i take off i feel the belt grab and it takes off. but for it being so new i never thought to look at the belt. the tire does not spin while it idling on the center stand. When i come to a stop or slow roll to keep the engine going i give it gas it it loses power for a few seconds in and out and then it will take off.
Look...there's no guarantee that the carb float is the problem, but from your description it might be.
The carb float is a plastic piece inside the carb that maintains the fuel level at a certain height. Sometimes they start to sink (fill up with gas), so the gas level is wrong, and when you shake the scoot it sinks even more.....this makes the fuel level too high. and the engine dies.
Problem here....other things can cause the engine to die when you shake the scoot (it shouldn't). A loose electrical connection somewhere can act this way.
It's going to be difficult to pin-point the exact problem. An experienced mechanic could feel a leaking float just by holding it in his hand.....a bad float feels definitely heavier.
wereed: HOw can I start a thread?
Jun 1, 2013 10:55:49 GMT -5
wereed: or respond to a thread I started three years ago...
Jun 1, 2013 10:56:07 GMT -5
marklorenzi: I just bought one of the Fleetwoods. They look like a clone of the Honda XRM's they sell overseas. It is in transit now and I should get it this week. I will try to post my experience here. Call me the guinea pig hahaha.
Jun 2, 2013 20:29:11 GMT -5
flyangler: wereed, this forum is read only the new forum is on the banner above. Dan
Jun 5, 2013 7:35:29 GMT -5
silkyg1973: can someone please tell me how to post
Jun 10, 2013 12:08:46 GMT -5