New Rider
Currently Offline
Posts: 34
Likes: 0
Joined: Apr 16, 2013 12:07:25 GMT -5
|
Post by relaxinrob on Jul 6, 2013 13:20:49 GMT -5
Could the valves being out of adjustment make the scooter start hard, not idle well, run hot and lose power?
That is what mine is doing. I have cleaned the carb, changed the plug, checked the variator and made sure the brakes were not hanging up on it.
The engine gets extremely hot!!! That belt housing cover cannot be touched without burning you. It used to go 40+ and now it will barely do 25.........HELP!!
BTW, full synthetic oil changed regularly and synthetic gear lube.
|
|
|
|
Post by triker on Jul 6, 2013 13:29:00 GMT -5
The short answer is, yes. If the belt housing is getting really hot you may also have a another problem, such as a worn belt, ect..
Roy
|
|
New Rider
Currently Offline
Posts: 34
Likes: 0
Joined: Apr 16, 2013 12:07:25 GMT -5
|
Post by relaxinrob on Jul 7, 2013 9:01:02 GMT -5
Is it also possible that these symptoms are caused by a cdi unit that is no longer advancing the timing???
I am just trying to diagnose with your help before I start throwing parts at it.
The belt looks fine, but the whole engine and case gets hot. It revs up fine on the stand and takes off nice, but falls on its face after that and only goes 25. I had the vacuum advance on a car come off one time and it made the engine run hot....thats why I asked about the CDI.
Thanks in advance for your input.
Rob
|
|
|
|
Post by devo344a on Jul 7, 2013 10:50:02 GMT -5
It still has the plastic shroud around the motor right??if not it will make it get hot
|
|
|
|
Post by triker on Jul 7, 2013 11:53:18 GMT -5
Is it also possible that these symptoms are caused by a cdi unit that is no longer advancing the timing??? I am just trying to diagnose with your help before I start throwing parts at it. The belt looks fine, but the whole engine and case gets hot. It revs up fine on the stand and takes off nice, but falls on its face after that and only goes 25. I had the vacuum advance on a car come off one time and it made the engine run hot....thats why I asked about the CDI. Thanks in advance for your input. Rob You do not have to throw parts at it to adjust the valves. It is possible the engine is running lean check for vacuum leaks. How does the spark plug look? If the vacuum advance came off on your car it would have started running lean because it was sucking excess air in through the hose. The engine started running hotter because of the lean condition, not because the spark timing wasn't being advanced. A retarded or insufficient timing advance will cause a lack of power because the fuel doesn't have time to completely burn. Roy |
|
New Rider
Currently Offline
Posts: 34
Likes: 0
Joined: Apr 16, 2013 12:07:25 GMT -5
|
Post by relaxinrob on Jul 7, 2013 16:41:03 GMT -5
the plastic shroud is in place. I will adjust the valves and report back
|
|
New Rider
Currently Offline
Posts: 34
Likes: 0
Joined: Apr 16, 2013 12:07:25 GMT -5
|
Post by relaxinrob on Jul 10, 2013 17:13:16 GMT -5
resetting the valves did the trick the exhaust valve was very tight!!! Thanks again for all your help!!!
|
|
