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 need help starting bike
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cyco




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69 posts [100%]
Miami Fl
5-1-2003
  need help starting bike« » 3:00 PM 5/8/2008 Reply  Edit

so i'm trying to get my friends' hyosung gv-250 back running agian. it has been sitting since december, battery died, low gas. so i charge it up last night and fill tank this morning, and try to start the bike. it'll only turn over when the choke is engaged and starts by reving up to 3.5 4000 before falling down to a low idle. if you disengage the choke or give the bike any gas it'll die. also, after filling the tank, the needle went down to E instead of up to F. it was working proper before the bike was left to sit. any help or suggestions would be appreciated. thanks


when you expect nothing and gain everything, that's destiny


.RJ
Ton Up



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10462 posts [100%]
Ill Communication
10-14-2001
 « Re: need help starting bike (cyco)« » 3:20 PM 5/8/2008 Reply  Edit

FI or Carb?


Madison Motorsports

03 GTI | 71 CB750
04 Trek 8000 | 06 Trek Pilot 2.1 | 85 Trek 660

Racing is one of the finest mechanisms for the disposal of money - RR98ITR

cyco




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69 posts [100%]
Miami Fl
5-1-2003
 « Re: need help starting bike (.RJ)« » 4:14 PM 5/8/2008 Reply  Edit

carb. plus the bike now has the smell of gas around it. i last left it on about an hour ago, left to drop off my newphew at his house and when i came back i still smell gas around the bike


when you expect nothing and gain everything, that's destiny

GraphiteAccord
Triumph Snob



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2742 posts [99%]
Todays date is
8-21-2001
 « Re: need help starting bike (cyco)« » 4:25 PM 5/8/2008 Reply  Edit

carbs are gunked up.


'07 Triumph Daytona 675
constant error code:
Quote, originally posted by BrokeAssWhiteboy »
P0150-200: Missing #4 Cylinder


MSchu
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7625 posts [101%]
Orange Curtain ca
7-22-2005
 « Re: need help starting bike (GraphiteAccord)« » 4:36 PM 5/8/2008 Reply  Edit

Is your choke a lever or is it a switch? if its a lever, feather it after the bike fires up and let it warm up for a few minutes at 1500-2250 rpms. Then after shes warmed up blip the throttle to make sure you have good throttle response. if she still dies after that you have fuel delivery issues of some kind. Right now it sounds like your carbs are flooded, you'll need to wait until some of the gass evaps to try it again.

.RJ
Ton Up



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10462 posts [100%]
Ill Communication
10-14-2001
 « Re: need help starting bike (MSchu)« » 4:49 PM 5/8/2008 Reply  Edit

If its been sitting for 5-6 months, the carbs have to be taken apart and cleaned up.

Gas will turn to varnish and start blocking carb jets within 6-8 weeks.


Madison Motorsports

03 GTI | 71 CB750
04 Trek 8000 | 06 Trek Pilot 2.1 | 85 Trek 660

Racing is one of the finest mechanisms for the disposal of money - RR98ITR

cyco




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69 posts [100%]
Miami Fl
5-1-2003
 « Re: need help starting bike (.RJ)« » 11:31 AM 5/9/2008 Reply  Edit

thanks for all the help, carb cleaning to be underway shortly along with what looks like a pepcock replacement as it seems to be weeping gas.


when you expect nothing and gain everything, that's destiny

MSchu
H-T White Ops



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7625 posts [101%]
Orange Curtain ca
7-22-2005
 « Re: need help starting bike (cyco)« » 11:33 AM 5/9/2008 Reply  Edit

Quote, originally posted by cyco »
pepcock replacement as it seems to be weeping gas.



Patrick




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289672 posts [101%]
Omaha NE
10-8-2002


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 « Re: need help starting bike (cyco)« » 11:36 AM 5/9/2008 Reply  Edit

Def sounds like the idle jet in the carb is clogged. I had the same issue once before.


"Answer hatred with justice, and love with benevolence."

2002 Nissan Xterra SE S/C
2002 Honda CBR600F4i
1971 Yamaha R5

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Slidin'Sidewayz




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213 posts [100%]
Rock Hill SC
8-29-2007
 « Re: need help starting bike (cyco)« » 11:38 AM 5/9/2008 Reply  Edit

Yea just needs a carb rebuild if its anything like a car/truck.

Patrick




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289672 posts [101%]
Omaha NE
10-8-2002


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 « Re: need help starting bike (Slidin'Sidewayz)« » 1:17 PM 5/9/2008 Reply  Edit

I wouldn't say a rebuild is necessary unless the seals are wrecked. Might just need to be pulled apart and cleaned thoroughly.


"Answer hatred with justice, and love with benevolence."

2002 Nissan Xterra SE S/C
2002 Honda CBR600F4i
1971 Yamaha R5

XBL: CountZero160

.RJ
Ton Up



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10462 posts [100%]
Ill Communication
10-14-2001
 « Re: need help starting bike (Patrick)« » 1:19 PM 5/9/2008 Reply  Edit

Quote, originally posted by Patrick »
I wouldn't say a rebuild is necessary unless the seals are wrecked. Might just need to be pulled apart and cleaned thoroughly.

On most newer carbs, this is a 'rebuild' There's not a lot to replace... just disassemble and clean thoroughly.

I like to soak everything in simple green for a few hours, rinse with water, and dry with compressed air - make sure you blow out all the jets.


Madison Motorsports

03 GTI | 71 CB750
04 Trek 8000 | 06 Trek Pilot 2.1 | 85 Trek 660

Racing is one of the finest mechanisms for the disposal of money - RR98ITR

Slidin'Sidewayz




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213 posts [100%]
Rock Hill SC
8-29-2007
 « Re: need help starting bike (.RJ)« » 1:34 PM 5/9/2008 Reply  Edit

Quote, originally posted by .RJ »

On most newer carbs, this is a 'rebuild' There's not a lot to replace... just disassemble and clean thoroughly.

I like to soak everything in simple green for a few hours, rinse with water, and dry with compressed air - make sure you blow out all the jets.


Yeah, my dad is a carburator like expert and he builds them for our race car along with many other race teams at the local dirt track and when I think about rebuild its mostly tear apart, get water build-up/dirt out and replace anything that could be going bad. Most times he just buys a rebuild kit and rebuilds them. i mean its already torn apart, why not?

.RJ
Ton Up



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10462 posts [100%]
Ill Communication
10-14-2001
 « Re: need help starting bike (Slidin'Sidewayz)« » 1:42 PM 5/9/2008 Reply  Edit

The problem is most "rebuild kits" include junk parts.

I cleaned up a set of carbs for my '95 FZR the other day, didnt replace a thing. Everything was cleaned and reused.


Madison Motorsports

03 GTI | 71 CB750
04 Trek 8000 | 06 Trek Pilot 2.1 | 85 Trek 660

Racing is one of the finest mechanisms for the disposal of money - RR98ITR

Slidin'Sidewayz




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213 posts [100%]
Rock Hill SC
8-29-2007
 « Re: need help starting bike (.RJ)« » 1:51 PM 5/9/2008 Reply  Edit

Yea true, my dad doesn't alway use all the parts in those kits but in like the quadrajet carbs some race cars run they have little filters in them that has to be replaced along with some other little things that gets dirt and junk in them. Im not sure how close a car carb is with a bike but I they have to be somewhat similar..lol

.RJ
Ton Up



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10462 posts [100%]
Ill Communication
10-14-2001
 « Re: need help starting bike (Slidin'Sidewayz)« » 2:13 PM 5/9/2008 Reply  Edit

Quote, originally posted by Slidin’Sidewayz »
but I they have to be somewhat similar..lol

Similar in that they deliver fuel to the motor... thats about it.


Madison Motorsports

03 GTI | 71 CB750
04 Trek 8000 | 06 Trek Pilot 2.1 | 85 Trek 660

Racing is one of the finest mechanisms for the disposal of money - RR98ITR

Slidin'Sidewayz




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213 posts [100%]
Rock Hill SC
8-29-2007
 « Re: need help starting bike (.RJ)« » 2:45 PM 5/9/2008 Reply  Edit

Close enough for me!
   

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