2007 key west wont start

[gm]

my dad bought a 2007 key back in 07.  rode it for a whopping 58 miles then just let it sit in his parking lot outside. 

its been sitting for at least 5 years.  i am trying to get it started.  i check compression on the engine.  was about 100-110psi.   i replaced the battery and the spark plug as well. i get a spark on the plug.

gas tank was disgusting but i think i got it mostly cleaned out.  first problem i have encountered is that with it cranks i dont see fuel getting to the carb.  i think the petcock valve may be messed up but how can i tell?  is there a way to unclog those things?  i dont want to assume the carb is bad until i least get gas to it and it wont start.

any help would be greatly appreciated.  i dont know much about these scooters.

thanks.

[harry]

so  was there rust in the tank? that's really bad
 because  you will be cleaning the carb all the time
due to tiny pieces  of it  clogging the jets.

 there  is a bent pipe @90  comes out the
middle  of the shut off   you need to suck (vacuum)  on it ,
 i use a syringe , that will open up the flow  of fuel.
 i would remove the fuel line to the carb so that bad fuel  doesn't
go into the carb .
 and most likely you will  have to clean the carb if it has sat for that long.

oilyhans
 

[gm]

Got it started tonight. By not using the petcock.  Just ran fuel line into filter into carb. 

But I think the flow was too much because it kept stalling.  Does that sound possible. 

I ordered a new petcock. It's really gunked up.   Not sure if this is will be all I need to do.

[harry]

well it might be a good idea to clean the tank really good
then replace the shutoff ,filter and the hoses , then clean the carb.
 if there is any rust/muck in the tank the carb/jets will get plugged up.

oilyhans

[gm]

i cleaned out the tank as good as i could.  i don't know if its perfect but the gas seems to be flowing good.  i replaced all the hoses and cleaned the carb.  got it running now.  i was able to take it for a test ride but now it seems that it works well during the ride.  then when i go from riding to idle it stalls.  do you think it could still be a carb problem?

also another question i had was about gear oil.  can i use anything else but 85w-90 and do you know how much i need to put in after i drain it?

thanks for all the help.

[harry]

you will find the service manual linked to the bottom
of the forum home page.

oilyhans

[gm]

got it.  90cc of gear oil.  can i use 80w-90 even tho the manual says 85w-90?  none of the auto parts stores have that?

[harry]

yes,  thinner <80w> is better where its a cooler climate
 but 80/90w is what  i've  used for 10 years.

 oilyhans

[gm]

im in florida so do you think thats a bad idea then?

[harry]

its fine

oilyhans