Yamaha Discussions about Yamaha ATVs.

03 raptor turning over, won't start??????

Thread Tools
 
Search this Thread
 
Old Sep 12, 2003 | 03:33 PM
  #11  
RaptorOwner's Avatar
Extreme Pro Rider
Joined: May 2002
Posts: 3,443
Likes: 0
From: Bakersfield
Default 03 raptor turning over, won't start??????

my bad, I was typing my thread just before his post.

 
Reply
Old Sep 12, 2003 | 06:01 PM
  #12  
Ward660R's Avatar
Extreme Pro Rider
Joined: Jan 2002
Posts: 4,104
Likes: 0
Default 03 raptor turning over, won't start??????

It sounds like a peice of trash is stuck in the needle and seat valve (IMO). You said the petcock flows good but not gas to the carbs. So its either that or what RaptorJay is talking about. If you float level looks good try using compressed air to blow the seats out, you might even want to take them out and blow through the carbs themselves. The float level normally doesn't just go bad (not that bad anyway).
 
Reply
Old Sep 12, 2003 | 06:06 PM
  #13  
FsT4WrD's Avatar
Pro Rider
Joined: Feb 2003
Posts: 1,176
Likes: 0
Default 03 raptor turning over, won't start??????

This may sound stupid but it happened to a friend of mine ......... is the parking brake on ??????
 
Reply
Old Sep 12, 2003 | 07:26 PM
  #14  
taftraptor's Avatar
Trailblazer
Joined: Jan 2003
Posts: 73
Likes: 0
Default 03 raptor turning over, won't start??????

Stator- Happened to a friend of mine while in Oregon. Try disconnecting the plug under the seat, to the stator. Just a thought.
 
Reply
Old Sep 12, 2003 | 09:50 PM
  #15  
Atkins450's Avatar
Pro Rider
Joined: Sep 2003
Posts: 444
Likes: 0
Default 03 raptor turning over, won't start??????

it sounds like you got mud in your starter. No chance in saving it, your gonna have to get a new starter. If your gonna be mud riding, then you should probably invest in an aftermarket starter with better bearing protecting against these sort of leaks.
 
Reply
Old Sep 12, 2003 | 10:04 PM
  #16  
wshrdskin's Avatar
Extreme Pro Rider
Joined: Feb 2002
Posts: 4,156
Likes: 0
Default 03 raptor turning over, won't start??????

He says he has no gas in the left bowl and very little in the right bowl. He says it turns over but does not start. There is nothing wrong with the starter. He says he sprays carb cleaner in through the air box and gets a fire. He is not getting gas into the carbs and into the cylinder. You say your petcock flows gas. The problem then lyes in the gas line and to the needle valve and seat or floats themsleves. Also check the vent hose on the gas cap. Plugged vent line. You could take the gas cap off and try and start it or remove the vent line and blow through it.
 
Reply
Old Sep 12, 2003 | 10:10 PM
  #17  
Atkins450's Avatar
Pro Rider
Joined: Sep 2003
Posts: 444
Likes: 0
Default 03 raptor turning over, won't start??????

sometimes even a grain of dirt in your carb can cause worse problems then this. You might wanna completely clean the inside of your carb.
 
Reply
Old Sep 12, 2003 | 10:55 PM
  #18  
HiFlyinRaptorRyder's Avatar
Pro Rider
Joined: Mar 2003
Posts: 703
Likes: 0
Default 03 raptor turning over, won't start??????

Im with taftraptor, I have had my stator go out twice. It did exactly what you described. Have someone pull start you, ride like normal for a while so it gets warm, then shut it off and see if it will start. If it starts when its warm but not when its cold, its the stator. If its backfiring when you crank it you could have blown off the carb boots, but thats pretty unlikely. If not the stator, most likely what everyone else is saying.
 
Reply
Old Sep 12, 2003 | 11:16 PM
  #19  
VirginRider's Avatar
Range Rover
Joined: Sep 2002
Posts: 141
Likes: 0
Default 03 raptor turning over, won't start??????

check the wire leads going to the cdi box I had one fall out once and it took 3 days of testing to find it, The bike would turn over but would not start.
 
Reply
Old Sep 12, 2003 | 11:19 PM
  #20  
Slowwarrior's Avatar
Range Rover
Joined: Jul 2002
Posts: 152
Likes: 0
Default 03 raptor turning over, won't start??????

I believe its your float valve. Take your bowls off then take the screw out that holds the floats. The little valve under there can get stuck in there and not let gas get through. Happened to my friends Raptor. Those valves should come right out if the floats are unscrewed. I would damn near put money on it that, that is your problem. another thing to do is to squirt some gas into the carbs just to make sure that it is capable of starting. Check those float valves and you should be fine.
 
Reply



All times are GMT -5. The time now is 01:32 PM.