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You madman, defying the gods by trying to keep a rotary powered bike running! ;D

I found a very nice Gold Star (and friends) at the Solvang Motorcycle Museum in California (near Santa Barbara), and though of this thread...

Mydlyfkryzis, worst 750 ever, or BEST 750 evar? ;D As far as the 93 vs 87 octane situation, now that it's between 30-50 degrees F when I'm riding, the 87 octane is running better. I want to throw PJ's carbs back on the bike with the foam pod filters, but I don't want to take that bike off the...

Yup, my choices are E10, E10, E10, or walking. Makes all the cars smell like they're making rum when they warm up in the morning, so I guess it's not all bad? The 360 continues to fire up no matter how cold it's been and take me wherever I want to go. It also continues to mark its territory...

The funny thing is that the timing is dead on with my timing gun, and the advance is working properly too. I'm still running the Pamco electronic ignition, but that seems to emulate the stock timing pretty well. I got nothing...

Another update...the 360 is still alive and kicking - as I said before, I've been riding the heck out of it. Updates I've made have been minor, but have helped rideability a great deal. I finally replaced the chain (39 years, is that all I get out of the original one?!?!?) and sprockets, and...

Updates! The gaskets arrived shortly after I last posted, the new cylinder and pistons went on, and there was peace in the Middle East for at least 15 minutes as a result. I found a plugged slow jet in the left hand carb (how do I keep plugging these things!?!?!?!?) which was causing the...

The Postal Orifice has no idea where my 360 gaskets are, other than they are no longer in Minnesota. Sigh. So, I decided to work on my Dad's Triumph TR3 motor, and was able to get the cam in and timed and the distributor / oil pump drive shaft and its bushing installed. I wasn't thinking...

Yea, my Dad has an '83 Nighthawk 650, and if the bike is lucky, he puts fresh gas in it in the spring. He brings the battery up from the basement, hooks it up, airs up the tires and rides away. Sigh...

So lacking gaskets I spent more time on the latest CBR900 today. After I corrected the PO's coil pack to plug stupidity (Hondas 4 cyls are almost all 1-4 and 2-3 for the coil packs people!) and reinstalled the carbs minus the jellied gas and plus a cleaned choke linkage, it fired right up and...

Heheheh, I can look at it and say "oh yea, that's where all of my money for my retirement went!" ;D The gaskets didn't arrive today either, but I did get some work done on my Dad's Triumph TR3 engine, as well as the CBR900. Hopefully Monday gaskets will appear...

Hey, my bike's blue as well and isn't done. It's a conspiracy, I tell ya! The gasket set was supposed to arrive yesterday, but no sign of it. The USPS tracking says it's somewhere between me and Minnesota, so yay :-\ Guess I have to go work on the CBR900RR so I can sell that off to finance...

Dude, I had to dig back into my own archives to find this...can't believe this thread is so long...

Good eye PJ, when the tensioner stopped, uh, tensioning, the previous owner spun the motor over enough to slightly bend one valve and nick the piston with the older valve. I smoothed the nick and replaced the valves - if we journey back to December 25th, 2012 in this thread, you can see the...

I already ordered a set of new (to me) jugs, with good used pistons and rings, so I think I'll start there. This is so weird, I can't really explain what I saw. I still need to remove the valves from the head to make sure I didn't do something weird with a valve seat. I did notice that the...

Ok, data from measuring and poking today and some fun pictures! As you can see, there's no obvious damage to the rings or piston: According to my boreometer (heh), the left bore is 2.6395". The service limit is 2.6417" and the "good" range is 2.6382" - 2.6386". So pretty close to good...

I was only high on life ;D All seriousness aside, I had a great ride, and pulled the plugs to examine them. I had to look about half a dozen times to convince myself, and even after I poked it with a screwdriver I still wasn't believing my eyes. I stuck a little USB borescope camera I have...

I was able to poke the ring with a screwdriver - believe me, I didn't trust my eyes either! The head gasket rings are intact - that was my immediate thought after I saw the rings intact. The valve springs look intact, but I'll pop the valves out anyway just to see what's going on. I need to...

Yea, I was all happy walking out of the Autozone with a set of hotter plugs in my pocket and decided to snap that picture. So here's the thing - I've torn down the motor, and can't find anything wrong. The rings were all back in their proper places on both pistons. What the heck (other than...

I just bought the gasket set - with my luck I'll need the little rubber pieces and a new base gasket and whatever else, and I don't want to have to wait again for the mailman when I dig into this thing. I gotta say I'm pretty surprised how well the thing ran with a ring escaping. I'm very...