Leak Down Test Performed

[CaptainKnobby]

That’s very low hours as many go 400+ to years and years and years. Could have been off a bit. Sometimes when you measure the ring moves in the bore a bit. 

That's what I was thinking at the time I was measuring them. I wasnt really concerned at that time for a really precise measurement.....I mean I was wanting to be as close I could but I knew it couldnt be that much, like you said.....
It did t have any hours on it.
That's why I didnt bother putting new valve seals in it. I could feel by hand when sliding the valves in that there was plenty of drag on the sides of the valves for sealing.

[CaptainKnobby]

Waiting now on the countersink screw that holds the Guide plate for the cam chain. You can see the hole it goes in in the pic on other page where the cam chain sets at the bottom.
Dont know what kinda licking agent yamaha used bit man it sure was tite. The Torx head screw didnt help either.
I tried the Torx bit bit it would just slip. Wound up stripping the inside where the Torx bit slipped.

Used a lighter underneath to try and to melt the loctite. Wound up just using a easy out to get the screw out when the Grabbit failed.
There was no way a Torx head was getting that screw out. So when I get the New one I can finish putting the cylinder on.
I went ahead an ordered the valve seals when I ordered the screw just to have em. Not sure whether to put them in or not.

[CaptainKnobby]

Got my counter sink screw for Cam chain guide plate and my 4 valve seals.
Found a little tool on the bench that made installation of the seals a breeze.
The lip of the seal is up inside and the metal part rests on the outer edge of the seal. It actually let's the valve stem travel up in it then all you do is press down and "Bingo" the seal is on.

[CaptainKnobby]

Got the cylinder and Head, Intake, rads...ect...back together. Hooked the leak down tester to it and put 170psi in and no leaks from exhaust or intake this time....However heard some air leaking at the side cover at the hole where I set TDC with a T-Handle wrench.
Guess its where I put the New Piston and Rings in. Maybe After I ride it and the rings seat it will be ok.

[CaptainKnobby]

So it's been about a month now since I started rebuilding my Bike with Fresh parts and now Bike is back together. Fired right up and now it rev's really quick.
So here is a run down of what I done and in this order when I started and when I finished.

1=Rebuilt the Forks with all new Bushings,Metal slide,oil seal, wipers and Fluid.

2=Rebuilt Shock with New seal Head, fluid, Re-Greased Pivot works shock Spring Thrust Washer bearing and 145psi Nitrogen Charge and Re-Greased the Top and Bottom bearings.

3=Steering Head Bearings.

4=cleaned all Throttle Cables,Tube and Housing.

5=Re-Built Front Brake Calipers, put on New Pads and added New Fluid.

6=Tore swing-arm down and cleaned it with the rest of linkage. Re-greased the Linkage, Connecting Rod, A-Arm and Swing arm bearings.

7=Rebuilt the Rear Brake Caliper and put New pads on and added New Fluid.

8=Cleaned Top of the case and around it along with sub Frame,Cylinder,Head and Frame with Metal Polish.

9=Dismantled the Intake completely and cleaned it inside and out along with the throttle body.

8= Took wheel Bearings out of my Tusk Impact rims and re-packed them with Grease and put New wheel bearings in my stock excell rims.

9=Cleaned and polished Both Radiators and the Hose's.

10=took Head,Cylinder off to inspect and clean off all the carbon from Valves and bottom of Head and in the exhaust and intake ports. Added New Valve Seals, New Piston and Rings, wrist pin and clips and Gaskets, New Timing Chain, Spark Plug.

11= Cleaned Header, Exhaust silencer and Re packed the silencer with New FMF 4.1 packing kit with New Sticker for silencer.

12= Put New TAG Metals Rear 50T Sprocket, 13T Front Sprocket and New Chain on.

13=Changed Oil in Motor with Amsoil 10-40.

14=New Radiator Fluid (Engine Ice).

15=Cleaned the Plastic.

[Jens Eskildsen]

Outstanding! ?

[woods-rider]

Check for an air leak on the intake side. Sounds like the bike is sucking in more air that you are giving it with the throttle which causes it to rev up.

 

Spray something flammable, like starting fluid, around the carb/cylinder connection with the engine running, but not hot yet.

[CaptainKnobby]

Check for an air leak on the intake side. Sounds like the bike is sucking in more air that you are giving it with the throttle which causes it to rev up.
 
Spray something flammable, like starting fluid, around the carb/cylinder connection with the engine running, but not hot yet.

No Air Leak..... Just pure Air Coming in through a Intake system that was completely cleaned and New Filter put back in. You took revving quickly to literally. In other words I meant.....the Throttle response is Superb!