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View Full Version : cutting out in 5th wide open...


THORrider350
06-11-2008, 09:03 AM
Anyone know what this is linked to? Main, pilot, needle clip, fuel screw, boysen quick shot?? any help would be appreciated... it just cuts out when i am maxed rpm's in 5th
yfzrider310
06-11-2008, 09:49 AM
Mine did that to and I played with the fuel screw and it seemed to stop. I just turned it out a half turn and it did the charm. Are you talking about when your going down a road full throttle fifth it seems like it runs out of gas?
THORrider350
06-11-2008, 11:36 AM
Yeah exactlty going down the road wide open it completlt feels like it is running out of gas.
yfzrider310
06-11-2008, 11:40 AM
yea I think it just needs a little more fuel so turn the fuel screw out about 1/2 turn out
yfz4504life
06-16-2008, 03:37 PM
try turning on your headlights. mine did the same thing and only wide open in 5th gear. i asked a yamaha mechanic what it might be and he said to get full charge it has to use some, and if the lights are off it wont charge.
Ride1Rob
06-16-2008, 06:55 PM
It's called a rev limiter ;) .
cosinostra
06-16-2008, 09:42 PM
make sure your gas cap vent tube is not creating a vacumn.. I had one of the mod quad (POS) breather caps get gummed up and it did the same thing...
THORrider350
06-22-2008, 10:40 PM
well its not the breathe tube on the cap, it doesnt feel like the rev limiter, but i will try the lights and see what that does for me... I will try anything, i messed with the fuel screw all day and nothing worked for me..
yfzrider310
06-22-2008, 11:10 PM
Have you checked the spark plug condition recently? Is your airfilter clean? Do you have a tether kill switch? There is a lot of thing that could make this happen. Does it cut out in any other gears? It could also be that the timing on the cams are off. Try going 5th wide open but take the air box lid off if it isnt already and see if thats helps. The first thing you should do is check the spark plug condition. If its wet then its running to rich and if its white then its to lean. If it is a tan color than its just perfect.
represent618
06-23-2008, 09:18 AM
If you get off the road and quit running it wide open in 5th I bet the problem goes away.....

What are you doing on the road with a quad?