[MPTonyT]

if a clunk sound is heard when shutting off the quad does that mean the one way is going out? dont have any issues that i know of when starting it and i make sure it is in neutral before cranking it. can anyone chime in with experience on this matter?

 

[05rappy]

ive got the same thing happening to mine, havent had any problems either, sometimes it does it sometime it dont, lol i hope someone knows cause i dont like the sound of it.

 

[Teraflx]

Mine clunks too and thats what I have heard is that its the one way, and I too always start in nuetral.

 

[maxb750]

its completely normal....decompression pin on the cam!!!

Max

 

[MPTonyT]

thanks Max, if anyone thinks differient please chime in i want to catch this damn thing before it gets to bad.

 

[RFguest163451]

mine clunks alot. especially when you try to start it but dont hold the button long enough and it doesnt start-Clunk. and if you turn it off in gear. good to hear its normal

 

[daprotege5]

@QuadManiac one of my quads does what their describing too. Almost like a loud clack when starting, sometimes when it shuts off. And I just put new one way, 52t. Just find it weird to be normal.

 

[Mdwilson2011]

@daprotege5 Yeah that's normal. Not sure exactly what it is, but seems pretty universal on 660s.

 

[daprotege5]

@daprotege5 Yeah that's normal. Not sure exactly what it is, but seems pretty universal on 660s.

Scares the shit out of me every time since my other 02 raptor isn’t as close to as loud as the 01.

 

[Mdwilson2011]

Scares the shit out of me every time since my other 02 raptor isn’t as close to as loud as the 01.

Did some looking, and a lot of guys are saying the noise occurs when the engine shuts off during a compression stroke. The compression pushes the piston back down, causing the one way to engage and turn the starter gears backwards. It's primarily cosmetic in nature--the damage is minimal to nonexistent.

 

[QuadManiac]

Normal... What Md just said.