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Message started by hotprops on 03/02/15 at 09:20:49

Title: new guy with a question
Post by hotprops on 03/02/15 at 09:20:49

long time looker and was for a long time before i bought my bike,i think this site helped me to become a buyer,so many thanks to all. so the question if the bike sits for a few days it is hard starting till i put petcock on prime is this normal or time for the yamaha petcock? o yes the rules 2010 s40 1580 miles kept in a air-conditioned garage in south Florida its whole life. it is new to me as of last week thanks to all great site

Title: Re: new guy with a question
Post by hotprops on 03/02/15 at 09:24:07

to add, that is just to start,than move to run in a few seconds.

Title: Re: new guy with a question
Post by Dave on 03/02/15 at 09:27:56

It can be normal if the bike is in the sun or someplace that would allow the fuel in the float bowl to evaporate faster than normal.... Normally it takes a week or two for that to happen.  The PRIME position allows fuel to flow into the float bowl to refill it.

Do you see that the fuel is dripping out the bottom of the carb when it is parked.

And if you do get a Raptor Petcock...make sure you get the official YAMAHA part #5LP-24500-01-00.....not a cheap Chinese copy from eBay.  If the listing doesn't show the part number on the white box from Yamaha..find one that does:
  http://www.ronayers.com/Search.aspx?k=5LP-24500-01

Title: Re: new guy with a question
Post by hotprops on 03/02/15 at 21:43:41

thanks for the info . looked for fuel leak ,smell of fuel none  ,and it would not start after one day. should i do the carb bowel level check? i am thinking that it [the carb is so hot the fuel might   be vaporizing [baking off, after shut down } any help or ideas? thanks

Title: Re: new guy with a question
Post by verslagen1 on 03/02/15 at 22:03:22

think it's time for raptorcock.

might be a bad vac line, or a hard diaphragm, or both.
as you pull up, the low vac might be restricting the flow.
and the carb is sucked dry before you shut off.

Title: Re: new guy with a question
Post by jcstokes on 03/02/15 at 23:45:39

I hope you are not opening the throttle when you start it. According to the handbook, the throttle should be closed and full choke used for cold starts.

Title: Re: new guy with a question
Post by hotprops on 03/03/15 at 01:21:33

i might be cracking the throttle ,i will stop and see thanks. o i get it less vacuum to open that petcock

Title: Re: new guy with a question
Post by Dave on 03/03/15 at 03:43:53


3C352522393D3325560 wrote:
I hope you are not opening the throttle when you start it. According to the handbook, the throttle should be closed and full choke used for cold starts.


Good Point.    The throttle enrichment functions only when the throttle butterfly is closed.....if you crack the throttle open the vacuum at the enrichment port is minimized and stops the fuel flow through the enrichment valve.

Title: Re: new guy with a question
Post by old_rider on 03/03/15 at 20:02:27

Think its your petc0ck go here:
http://suzukisavage.com/cgi-bin/YaBB.pl?num=1251932429

follow the post and do everything it says to do to fully test it.....

Other questions are going to be:
Did you drain and refill with fresh gas?
Did you remove your oil fill cap and smell? (if it smells like gas, drain and refill your oil)
Did you drain your fuel bowl?
Is there gas in your air filter housing? or does your air filter smell like gas?
Have you drained the hose under the kickstand area to see if anything comes out?
Just saying..... there are questions folks are going to ask to try to narrow down what is going on... don't get frustrated.... we are old and try hard to remember :)
Like Dave says..... get the correct Yamaha raptor 660 petc0ck.
and after you install it... when ever you are done riding.... turn it to the OFF position! LOL.... if you don't and have a weak float needle valve... you will still get gas in your oil. :(

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