TOPIC:

Which set do you like?

I talked to Rob at Z1E today and found out that either set up will work on my bike and that folks are filling the channel that the odd shaped O ring goes in with silicone , leveling it off and use a one piece gasket.

My preference would be to go with the original set up of using a 2 pc and new O ring,

What are the benefits to going with a 1 piece ?

I let him talk me out of the one piece gasket. He said it would weep. The two piece gasket set O ring dried out in less than a year. Started leaking all over my foot. I have a one piece gasket now. It doesn't weep and I can reuse it. If you get the two piece, insist on a new OEM O ring.
Steve

In the day all we ran was the copper gaskets. I should have remembered that.

The copper gaskets are made to be used with o ringed cylinders,theyll leak like a sieve other wise.
I definitely prefer the 1 piece.

One piece has never been good for me. After a few disappointing leaks I found in my old gasket box an Athena gasket set. This included a two piece steel gasket (I bought a new O'ring) which is good for 1075cc. Since then no leaks. My base gasket is also steel.
The steel gaskets are used on my FJ1200 as well for over 40K again with no leaks, plus I believe the heat dissipates better.
I have no doubts, I'll never go back to fibre (one or two piece) again, as for the O'ring, if fitted correctly (using genuine only) should not be a problem

Interesting responses, thanks guys.

Z1E has a kit that goes for around 60 bucks and has everything I need plus valve seals (which I don't need)
Larry C is taking care of that.
The center cylinder O ring is not OEM though, is there any other weak links in this set up ?
www.z1enterprises.com/ItemDetails.aspx?i...nd+set&item=MAGTE119

The aftermarket O ring is what I was talking about. It started to leak after 6 or so months. It broke in three places. We use to reuse steel head gaskets back in the day. Just put them in the oven and they would regain it's shape. We would put it back into service. All I see now are the copper ones.
Steve

Never had any luck with the 1 piece gasket, every one I installed leaked oil. Never had a problem with the 2 piece with o-ring, they all sealed up fine.

I bought the one piece fiber gasket for a early Z1 and tried it. Had to fill the O ring groove with high temp copper silicon and it worked great. No leaks. Got it on sale for $19 but it was for a 900 not a 1015 so there was a lip. I expected trouble though, I was worried that the ring would glow and cause detonation. Didn't happen. The copper ones we all ways coated with silver paint. Old trick for reusing old gaskets. Now days there is copper coat. I'll buy a copper one for a 72mm bore and try the copper coat and see how that works.
Steve

I wanted something that I could reuse as my head needs to be done eventually. I went with copper and leveled off the o ring channel. Everyone said copper would leak but worked out perfectly.

OEM O-ring ordered through Ebay , I think I'm going with as close to original as possible but I am concerting the copper gaskets.
Bit the bullet on four 92075-232 OEM dampers and a OEM cam chain roller from ebay last night.
"blood suckers" some things are tough to find right now.
I've got to get this thing done.

I was going to have a local Honda 750 specialist do the honing and rings but I would like to read up on how to check the pistons and cylinders for wear and determine whether on not I can just hone and go with stock size rings.
Maybe I'll do them my self.

Can anyone recommend a good read on how to measure and inspect for wear ?

Yeah, Miller had one on his Hondadavidson CB 750/1015 overbore. Never had a problem. I was shy about trying new things then. Not now. I all ways wanted to try the one piece Z1 gasket but until it showed up on eBay for $19, I didn't want to chance it. I would recommend one for the stock 903 bores now. I'll be buying a new Wiseco K 1015/10.25/1 piston soon and take out the used stock 1015 pistons I have in there now. Wiped out one piston last year. That's why I bought the KZ barrels and pistons. Reused the rings (didn't have a choice) and am burning a small amount of oil. Not enough to foul plugs but that's why I recommend new rings. The KZ barrels don't overheat like the 903 do, plus I can go 1075 if I want in the future.
Oh that Honda? It was hard to beat. 750 plane bearings, single over head cam and all. I jumped at the chance to put in my Z2 750 crank. I'll have the barrels milled 2-4mm and it should spin up like a scalded cat.
Steve

bluej58 wrote: OEM O-ring ordered through Ebay , I think I'm going with as close to original as possible but I am concerting the copper gaskets.
Bit the bullet on four 92075-232 OEM dampers and a OEM cam chain roller from ebay last night.
"blood suckers" some things are tough to find right now.
I've got to get this thing done.

I was going to have a local Honda 750 specialist do the honing and rings but I would like to read up on how to check the pistons and cylinders for wear and determine whether on not I can just hone and go with stock size rings.
Maybe I'll do them my self.

Can anyone recommend a good read on how to measure and inspect for wear ?

What size and year is it? I bought Liska rollers from Z1. 1/2 the price of stock. If you're replacing rollers, they all should be changed, at least the ones you can't get to with the valve cover off.
You can use a feeler gauge top, middle and bottom. Not as good as with the right tools but you can tell if there is a taper or low spots. Is there a ridge? If so, you might be looking at oversized pistons. That's where eBay can be a good place to buy, not for used rollers.
Steve