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Scooters - 125 to 300 => People 250 => Topic started by: Diamante on June 07, 2011, 11:01:04 PM

Title: Overheating In Las Vegas
Post by: Diamante on June 07, 2011, 11:01:04 PM
The problem with my 250 is that whenever it reaches over 105 here in Las Vegas the scooter dies at a light unless I keep the brake on and revved up. Naturally, taking it in to the one, and only one repair center here, knows you have no other place to take it, therefore they name their own price, which is $110 just to look, then comes labor, parts, and other irritants. Does anyone know of a possible solution or how one can change / adjust something to alleviate this nauseating and temper testing problem? I'm good with tools and already replaced the speedometer cable (wasn't fun)...

thanks, D
Title: Re: Overheating In Las Vegas
Post by: MaryK on June 08, 2011, 06:16:43 PM
How do you know that the engine is overheating ?

Can you adjust the idle speed up a bit to keep the engine from dieing ?

If it is overheating, you could try replacing the coolant with WaterWetter.
 
http://www.thetruthaboutcars.com/2008/01/redline-waterwetter%C2%AE-review/ (http://www.thetruthaboutcars.com/2008/01/redline-waterwetter%C2%AE-review/)

http://www.redlineoil.com/Products.aspx?pcid=10 (http://www.redlineoil.com/Products.aspx?pcid=10)

http://www.redlineoil.com.au/Uploads/Downloads/MSDS%20WaterWetter%20Euro%207_01.pdf (http://www.redlineoil.com.au/Uploads/Downloads/MSDS%20WaterWetter%20Euro%207_01.pdf)

I have no experience with this product.

Scoot Safely,
Title: Re: Overheating In Las Vegas
Post by: Punk052 on June 08, 2011, 09:42:43 PM
There is a vacuum line that attaches to the intake manifold and then t's of after about 4 inches. check this line and see if there is any damage to it. It helps control idle and when it leaks it causes the scoot to die when you come to a stop. I had mine break and drove me crazy trying to deal with a bad idle.
Title: Re: Overheating In Las Vegas
Post by: mrbios on July 26, 2017, 04:24:12 AM
Quote from: Punk052 on June 08, 2011, 09:42:43 PM
There is a vacuum line that attaches to the intake manifold and then t's of after about 4 inches. check this line and see if there is any damage to it. It helps control idle and when it leaks it causes the scoot to die when you come to a stop. I had mine break and drove me crazy trying to deal with a bad idle.

Thanks for the info.  My scoot just started having this problem - dying at lights and stop signs.  I check the hoses.
Title: Re: Overheating In Las Vegas
Post by: Mr. Paul on July 26, 2017, 09:34:29 AM
In hot temps the air is thinner. (Planes take much longer to lift-off in hot temps) The scooter is pumping the same amount of fuel in with less available air= a too rich condition at idle. Try to lean the idle screw a bit and I think that may solve your problem.