ok, i dont think this is a problem, but just making sure... if im in any gear and idle rpms and punch it, i get a knocking sound commin from my engine until it gets a few rpms under its belt and then it goes away... anyone know what this is? or do u other raptor owners get it?

thanks

 

Sounds like a timing problem. Can you advance the timing on the machine.

 

my screen name is "new2this660r" for a reason [img]i/expressions/face-icon-small-smile.gif[/img] i have no idea how to advance the timeing.. but it only knocks for a second. seems to me its just too low of an rpm to get it to really make power, just like a manual transmission car, if yer in like second gear and 900 rpms, it kinda knocks a little to till it gets a little speed up

 

Sounds like it could be detonation, or "spark knock". What type of gas are you running? I suggest always running premium, even in a stock quad. I know exactilly what you're talking about, becuase after I did all my engine mods on my 400ex, it would do the same thing if I ran pump gas, and really lugged the motor (such as being on a hill in a gear too low).I say maybe move up to premium gas if thats not what your currently using, and don't worry about it. I hope you have fun with your new quad...I know they changed my life in a good way.

 

How new 2 this are you? Is this your first quad? 4 strokes are none for their chuging and thumping. Especialy, when your new to riding and happen to be learning on a 660cc beast. Don't mean to offend.
AK

 

mine does it at a too low rpm, just means u need to gear down, thats what i do.

 

im VERY new to this... ive rode my brothers 230 suzuki quad sport once or twice and my other brothers banshee maybe 4 times.. all that time totalling up to say, an hour and a half... and yes this is my first quad... and ITS A BLAST

 

I am pretty sure it requires 92 octane or better. Have you tried changing your plug?

 

just like the sayed, always use higher octane, and check the gap on your plug, mine did that for awhile, i guess i accidently taped the head of the plug while putting it in.. but other than that, yea 4 strokes make alot of interesting sounds.. good luck!

 

I agree with titanracing25, u just need to gear down.