2003 quadsport z400

[Frank Angerano]

That’s great. Hopefully this is the last bit of what needs to be done and you can get some riding in ! 

[HeWasRidinDirty]

5 hours ago, Frank Angerano said:

That’s great. Hopefully this is the last bit of what needs to be done and you can get some riding in ! 

Ya, the thing fires up with just a touch of the button! 

I'm nursing a bum leg that I messed up a couple weeks ago. About 5 of my buddies went riding today, but, I gotta pass until the leg is %100. The weather is freaking perfect too! 😧

[Frank Angerano]

Let it heal! Plenty of time to ride later.  

Glad it’s running good, ride safe. 

[HeWasRidinDirty]

On 9/30/2019 at 5:36 PM, Frank Angerano said:

Let it heal! Plenty of time to ride later.  

Glad it’s running good, ride safe. 

Well the 400 crapped out on Saturday. I took a look at it yesterday and this is what I found. Sheared the key right the f*** off! 

[Frank Angerano]

Holy crap. The the engine come to an abrupt stop or back fire at all ?

[HeWasRidinDirty]

On 10/30/2019 at 6:28 AM, Frank Angerano said:

Holy crap. The the engine come to an abrupt stop or back fire at all ?

It just stopped. I got it back together and fired it up. I had a dirt bike that did  that outta the blue. I fixed it then it did it again in short order. My buddy suggested to put valve grinding compound on the crankshaft and put the flywheel on and spin it, spin it........ so I did that and it's been good ever since. So, I did the same thing on the 400. We'll see how it goes! 

[Frank Angerano]

Good luck. 

Hopefully it will work the same on the atv. 

[Steve A]

The flywheel is supposed to be installed clean and dry - looks like the taper was greased or smeared with anti-seize - the key does not hold the flywheel - the key is to align the flywheel to the crankshaft so it is in time - it is the taper that locks the flywheel to the crank - if you don't get the flywheel properly torqued, it will shear the key in a short time.