Also if I give it throttle it will stay on, and sometimes not always if I give it throttle it will sputter or back fire on me
2006 Raptor 700 won’t stay on
Hey Guys
I have a 2006 Yamaha raptor I just finished rebuilding a hot rod bottom end with a new bearing and a wiseco piston stock compression
When I go to start it turn on fine and idles for about 5-10 seconds then turns off
I checked the valve clearance twice and there in spec, got a new spark plug and fresh gas
What should be my next course of action ??
I have a 2006 Yamaha raptor I just finished rebuilding a hot rod bottom end with a new bearing and a wiseco piston stock compression
When I go to start it turn on fine and idles for about 5-10 seconds then turns off
I checked the valve clearance twice and there in spec, got a new spark plug and fresh gas
What should be my next course of action ??
1 - 15 of 15 Posts
Did you bump the throttle position sensor so it's not in spec now?
Also if I give it throttle it will stay on, and sometimes not always if I give it throttle it will sputter or back fire on me
I didn’t touch the position sensor during the rebuildDid you bump the throttle position sensor so it's not in spec now?
Also if it helps I feel like the top end makes a little knocking Noise I’m not sure if that’s normal with raptors I’ve read other threads that raptors are pretty noise
Anyone know a way I can post a video for y’all ?
What is the history of the machine? Did it run before the rebuild? Did you remove or mess with the wire harness? Does it have an aftermarket fuel controller?
The reason for the rebuild was the quad had a bad crankshaft bearing cause it to seize while running so I put ima new crank and piston. As for the wiring harness I just unplugged all the connectors to the engine and removed the engine and plugged everything back in when the motor was back inWhat is the history of the machine? Did it run before the rebuild? Did you remove or mess with the wire harness? Does it have an aftermarket fuel controller?
Upload a video to YouTube, then link it into here.Anyone know a way I can post a video for y’all ?
April 14, 2023
youtube.com
Sounds like a mix of valves and the injector ticking. What is the idle set to?
I don’t know what the idle is set at I haven’t touched it, how would I go about checking the idle screw ?Sounds like a mix of valves and the injector ticking. What is the idle set to?
I think you have an electrical issue of some kind. If you had a mechanical issue serious enough to kill the engine, it wouldn’t restart as if nothing happened. The wiring harness looks janky in your video, I’d be looking for wires that were yanked too hard and are loose in pigtails, chafes, etc.
Or possibly the crank position sensor going out? I’ve had that happen on several vehicles. As the engine would warm the sensor would start messing up & kill the engine. Let it cool for a few minutes & it would start up again. Crank sensors don’t go out often on raptors but just a thought
Your valves sound just a little bit louder than usual, but it could just be the video. Raptor valves are supposed to make some ticking noise. Recheck your clearances to be safe
Being an 06, could it be a vapor lock issue? I’m not super knowledgeable on the symptoms of that
Sent from my iPhone using Tapatalk
Or possibly the crank position sensor going out? I’ve had that happen on several vehicles. As the engine would warm the sensor would start messing up & kill the engine. Let it cool for a few minutes & it would start up again. Crank sensors don’t go out often on raptors but just a thought
Your valves sound just a little bit louder than usual, but it could just be the video. Raptor valves are supposed to make some ticking noise. Recheck your clearances to be safe
Being an 06, could it be a vapor lock issue? I’m not super knowledgeable on the symptoms of that
Sent from my iPhone using Tapatalk
ok I’ll try all those things and give an update to see if it works out, thanks for the adviceI think you have an electrical issue of some kind. If you had a mechanical issue serious enough to kill the engine, it wouldn’t restart as if nothing happened. The wiring harness looks janky in your video, I’d be looking for wires that were yanked too hard and are loose in pigtails, chafes, etc.
Or possibly the crank position sensor going out? I’ve had that happen on several vehicles. As the engine would warm the sensor would start messing up & kill the engine. Let it cool for a few minutes & it would start up again. Crank sensors don’t go out often on raptors but just a thought
Your valves sound just a little bit louder than usual, but it could just be the video. Raptor valves are supposed to make some ticking noise. Recheck your clearances to be safe
Being an 06, could it be a vapor lock issue? I’m not super knowledgeable on the symptoms of that
Sent from my iPhone using Tapatalk
Did you figure your problem I’m having a similar issue
Sent from my iPhone using Tapatalk
Sent from my iPhone using Tapatalk
1 - 15 of 15 Posts
Raptor Forum
A forum community dedicated to Yamaha Raptor owners and enthusiasts. Come join the discussion about performance, news, modifications, troubleshooting, maintenance, and more!
Full Forum Listing
