Ha ha, yeah, I'm lucky, being dyslexic, I can read backwards or forwards with no issues. Today was a great day, I had a couple of medical appointments, so I took a "sickie". My wife had forgotten my cunning plan, so woke me early anyway, but backed off quickly when I let fly with a few expletives. Regardless, it turned out to be a great day, firstly, a big box of Z1 parts arrived, along with a new battery for my Yamaha FJR1300.
1428 head 17 Jun 2020 6 by
Terry Prendergast, on Flickr
1428 head 17 Jun 2020 5 by
Terry Prendergast, on Flickr
Slightly ironic that it all came in a box marked "Honda", but hell, it was a nice quality box. I had to drive over to the local VICROADS (DMV) to pay the money and get a new number plate for my Yamaha FJR1300. Needless to say I got fcuked around when I got there, even before Covid-19 getting served by the pubic serpents there in was a slow process, but now with all the social distancing rules, it was painful. Regardless, I got my new plate, so it's legal again, and just at the right time of year, like most big watercooled bikes with barn door fairings, it's a lot more enjoyable on cold winter rides, than on 100 deg plus summer days. I'll be affixing it to the bike on Saturday morning, and doing my 12th 100 mile plus ride for the year. In fact I need to move it back home and take a couple of my future project bikes over to the storage place, it seems rather silly that 3 of my rideable, registered bikes are languishing in the storage place while 7 "future projects" are taking pride of place in my cramped garage.
1428 head 17 Jun 2020 7 by
Terry Prendergast, on Flickr
I stopped at Bunnings (our big box hardware stores) and bought another couple of large tubs to store the new Z1 parts in, which I find a lot handier than many boxes, satchels and small packets of parts, especially when I'm building a bike from a bare frame, as I am with the Z1.
I got to thinking about the 1428 engine again, I've had a few nagging concerns about the interface between those mountainous pistons and the cylinder head of choice, the GPZ1100. I've actually got two of these, the one that was on the drag bike's 1100 engine, and another one I bought for the "Sofa-King" low price of $18 on Ebay USA. I dragged that one out today, because, as it has no valves in it to block my view thru the ports, I could see how much of the combustion chamber would be occupied by those huge crowns.
1428 head 17 Jun 2020 2 by
Terry Prendergast, on Flickr
These ports are huge, so much materiel has been removed that I'm a tad worried about the thin mounting surface for the carb manifolds which hopefully will arrive tomorrow or Friday as I bought them from a FB member and asked him to Express Post them to me from his home in Newcastle, one state over. He's a top bloke, he took them straight to the Post Office and sent them even before we'd discussed a price, and they were cheap anyway, so I was very happy. Hopefully I can use this head, as it's already been relieved for big cams.
1428 head 17 Jun 2020 by
Terry Prendergast, on Flickr
The good news was that there was still plenty of room in the combustion chambers for those big arse piston crowns. I now just need to make sure that the valves won't come into contact with the pistons, because the Z/KZ heads had different valve angles than the GPZ1100 heads apparently, and I don't know if this will have an effect or not. We'll see. I'll have to think about getting the head and the cylinder block deck skimmed, as I'm sure I could see a very thin line of daylight between the gasket surfaces with the head just sitting on the block, and I don't want leaking head gaskets. I'll double check with a straight edge and make sure that there's not just some old gasket goop causing that gap first though, and I'll do the "sandpaper on glass" trick to see if there are any high or low spots that I can fix, because I don't want to have to wait weeks to get my parts back from the machine shop, either. Anyhoo, it's getting closer. More tomorrow.
![Grin ;D](http://forums.sohc4.net/Smileys/default/grin.gif)
1428 head 17 Jun 2020 4 by
Terry Prendergast, on Flickr