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- Nov 18, 2011
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Weather was going to be nice, and my back was feeling better, so got after it with the shed extension. As expected, multiple fastener types were used
but the plywood was so rotted in most areas, I could just pull it down with the hook of the prybar. After a few hours, had it all torn out, swept up, scooped up and dumped into 5 contractor bags, and the larger pieces in the bin for tomorrow's pickup.







the house builder put most studs on that wall on 16 inch centers, then randomly had a 10 inch, then went to 24 inch centers![]()
Wonder if the guy I bought my house from, built yours? 
Are we just going to close the other thread?



Ahhh, copy that, thanks.It's already closed. It was causing some system issues because it was so big.
BRP?Got started on the sled. Man, what a job! So much stuff to move out of the way. I was able to save a couple of hours by leaving the tank on but I had to cut a bolt that was hitting it. I'll just replace it facing the other way, like it should have been.
It almost looks like a miniature LL8 I6 engine with the cover off.
So I'm still allowed to call them yamabangs?No it's not a Bring Rings and Pistons. It's a Yamaha.
So I'm still allowed to call them yamabangs?

I keep looking at it... it reminds me of the TR-1 in my wave runner. Wonder if its a derivative.I call mine Yamaton.
Speaking of which, I took the head off today. Another engineering WTF when they put the engine mount in the way of the timing chain tensioner (or the other way around) so had to pull the engine mount bolt out and tilt the engine up.
Pull the head and, nothing visible as to what is going on. It was blowing coolant out of the overflow tank whenever I was going WOT. It wasn't burning coolant and the cylinders all looked normal. A quick check with a straightedge and light looked good on the block and on the head, a wee bit of light getting through between the two middle chambers. Some sanding on a plate of glass should clean that up. I'll also lap the valves as they were leaking when I checked at the end of last season.
One mistake I did was turn the head over. 10 of the 12 valve buckets (or lifters) dropped out along with the adjustment disks. Luckily it was on a large rag to catch them but they got mixed up. The disks are three different thicknesses that adjusts valve clearance. Checking the manual, the three thicknesses are very close to each other so it might not matter much. So I'll have to just put them back in, measure the valve clearances and swap them around until I get them right.
Being Yamaha, it probably does share some DNA with it however, sled motors are more derived from motorcycle engines. The 1000cc Apex 4 cyl. motor is a variant of the FZ1-R1 engine. The 3 cyl., like mine, was built specifically for snowmobiles however it looks like the 4 cyl. engine with a cylinder chopped off.I keep looking at it... it reminds me of the TR-1 in my wave runner. Wonder if its a derivative.
I actually was skimming through my literature on my ski and it said the 3 banger (1049 cc) was actually derived from the snowmobile engine which was 998 or something to the tune of that. The one that got the supercharger (genesis?) Is similar too. Thing runs reasonably well, little noisy and lacks the counter vibration parts the snowmobiles have but it gets the job done.Being Yamaha, it probably does share some DNA with it however, sled motors are more derived from motorcycle engines. The 1000cc Apex 4 cyl. motor is a variant of the FZ1-R1 engine. The 3 cyl., like mine, was built specifically for snowmobiles however it looks like the 4 cyl. engine with a cylinder chopped off.
