125-200cc Where to buy 144cc piston kit?

[Sendman]

Please share where you picking up your 144cc pistons, it seems like I have a problem with it...

 

[rancher1]

Local dealer.

 

[Sendman]

can someone tell part number for it?

 

[Sendman]

is it 8000H1135 ?

 

[rancher1]

Yes, 8000H1135 is correct.

 

[Sendman]

no pistons available.
my local dealer saying that MAYBE it will be available to order after 21.10.16. for € 134.38
dirtbikebitz.com don't have it
Eric Gorr don't answered at couple days
halls-cycles.com says:I have listed below the two options we currently have available for 144 pistons. Shipping cost is not included.
8000H1135/3 OEM Husky $200.25
8283DA Wossner $199.99
+ shipping - crazy price
husqvarnaworld.com - waiting for price as well

meanwhile wossnerpistons.com told that: The Wossner Part number is 8283DB

 

[Travis616]

The difference between the 8283DA and 8283DB is about .0001" I think. A tenth of a thou is how they usually go anyways just so you can match up to your cylinder - think it was a 'B' that went in mine a couple of weeks ago

 

[DTX915]

My local builder says its a Yamaha big boar piston. Said the wrist pin and height are the same. I never checked.

 

[Sendman]

purchased my piston for YZ 144cc, and want to ask - is this normal situation with cutting?
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[Zomby woof]

Is that a flat top or domed piston?

 

[wallybean]

The yz design is with a bevel to a raised flat top. That is what you are seeing in the picture. So it looks good to me. You will need to machine your head to accommodate the bevel in the squish band. You will also need to re-chamber the head or your compression will be off the charts. The piston top is raised ~.6mm over the same dimension on the stock husky piston. JFYI

 

[Zomby woof]

^^

Exactly what I was looking for. Thanks

 

[Sendman]

The yz design is with a bevel to a raised flat top. That is what you are seeing in the picture. So it looks good to me. You will need to machine your head to accommodate the bevel in the squish band. You will also need to re-chamber the head or your compression will be off the charts. The piston top is raised ~.6mm over the same dimension on the stock husky piston. JFYI

And machining inside piston is ok? looking a little weird...

 

[wallybean]

Yes that is just the cnc work on the casting to remove excess metal, lighten the piston, and balance the piston. The YZ design has a 1mm offset pin that gives a slight advantage on the power stroke.

 

[Sendman]

Yes that is just the cnc work on the casting to remove excess metal, lighten the piston, and balance the piston. The YZ design has a 1mm offset pin that gives a slight advantage on the power stroke.

thank you alot for all your help!

 

[Zomby woof]

I guess if pistons ever do become a problem, I could make that one work. Deck height with a stock piston is .5mm (with a .5 base gasket). If that one is .6, you could take .1 off the top to make it 0 deck, and open the squish to 1mm. In my experience, the 144 has somewhat low compression and could probably run fine without touching the chamber, other than to blend and bring it back into the 40-50% (of) area

 

[wallybean]

The piston top height is .6mm higher than the stock husky measured from the wrist pin hole. So it is a bit more involved.

 

[Zomby woof]

I assumed that measurement was taken from the wrist pin. It would throw off the port timing a bit, but you could also address that with base gaskets, no?

If given the choice, I prefer a zero deck height.

 

[Zomby woof]

The piston top height is .6mm higher than the stock husky measured from the wrist pin hole. So it is a bit more involved.

I was reminded of this when I read the poster's review of this installation. By being a bit more involved, what exactly do you mean?

 

[Sendman]

Here is husky 125cc piston left, and yz144 on the right. You can see that yz has not flat bottom of the piston, like 125cc husky do.

It is higher 0.6mm then husky. AND it has individual shape. It has canted edge from 58mm to ~53-54mm