I made a trade a few years back for this honda st 90 motorcycle cycle from a friend. I had just finished my honda sl125 and we made a trade for this and some honda 70s, he purchased it long ago and stashed it in his basement. fast forward to today and lets see what we got and what it will take to save it.

I always wanted a 90 heard those really fast.
It'll probably be vintage video game systems and games
Holy crap I love how angry 2 strokes sound. I have a 120hp evinrude V4 and the sounds it makes with the water muffs on is amazing
i baught 3 . 2006model kawasaki klx 110s for my children. absolute pieces of shit give me st90 and ct70 any day
Nice video. I just bought one of these this week. Neat little bike.
Great restoration 😊
no, it can't be saved! you should just give up and send it to me! lol
my honda 5 was points every time
Do you still have this bike..?
That's not a monkey bike
Thanks for the vid…You said there was 2 stroke gas (oil?) in the tank? Its a four stroke engine right?
Amazing content, even in that gas tank 😃
Would love to have that bike
Mustie 1 you laugh too f**** much when nothing is funny so to hell with you
That's a 75 actually and it does need a battery with charge
"promosm" 🙄
58:40 hey Mustie I doubt youll be reading this but mixing and dissolving are two different things, so it's likely regular gas would dissolve that sludge, but would need some time and mixing.
Solvents are either polar or non polar.
Mustie, smoothest screwdriver skills on the East Coast..
Recently picked up a 74 st90 in yellow that hopefully I will get to spend some time working on over the winter. Still a good runner though!
dont forget the fuse .
looked like someone poured used oil or gear oil into the tank and left it so it wouldn't rust out the bottom in storage.
what HS did you go to ?
I ride a classic vespa and I also own a classic lambretta! The scene is massive here in the UK 😜ðŸ‘
I got a Honda ST 90 for Christmas 1974 until I was 18. My only source of transportation in Middle School through High School. Great memories!
I like that, “monkey bike†hehehe. I can’t wait til the next video. Merry Christmas to you and your family!
You are so nice showing everything. Ass it is. XD thanks for all your videos 😀
Someone put oil in the gas tank. That is why it was parked. I have seen a lot of old gas in my life, and I have never seen it do that before.
I don't think the newer stuff is going to hold up, since it is impossible to work on the newer stuff without specialized training and thousands of dollars in equipment. Unfortunately I think the older stuff will die off as well. Due to the newer stuff being impossible for the average person to work on, fewer people in the newer generation are taking an interest in stuff like this. Between the smaller number of people working on stuff and the unavailability of a lot of parts for the older machines, I think all of it will eventually die off.
I haven't seen one of those since the mid 1970's. If I remember correctly the st90 was a 3 or 4 speed but had an auto clutch.
What happens to all of the engines / projects that you work on?
I wonder if the ST90 engine would fit into the Z50m.
Those were the greatest thing a kid could have in the seventies.
I had one of those
My first bike was a '69 Yamaha 175 Enduro basket case. Our stories sound similar – it was my ticket to adventure, and I pushed it home quite a few times. Never got caught on the road, though – we got far enough out of town on the trails we were out of cop territory! Good times!
Well now…I’m in the kitchen fixing Sunday dinner listening to you and heard a bit about your situation and decided I would subscribe and like your vlogs so you can have both Hunny and my support. You see Darrin, often times Jack and I are sitting in the living room drinking our coffee or having breakfast as Jack watches you, kinda like date night only in the am! Hunny knows he’s pretty safe watching you with me in the room because rarely is there any salty language coming out that I can’t handle. I will tell you that sometimes you will set Siri off in our house from your shop because she hears you say something that sounds like “Hey Siri†but that too I can handle because it’s a little comical actually. So now for what it’s worth to your YouTube “job†I’ll do my part to help out a fella. Wishing you all good things in hopes you never sell your soul for a Buck!!!:):):)
Well done, I have never had much luck messing with mechanical stuff but I sure enjoy watching it. Thanks for all you do for us.
For old dried fuel, nothing beats denatured alcohol! (as i was typing this i got to the part where you tried it) I have a 1974 RD250 that i'm restoring, and the whole area around the gas tank cap was covered and stained with a thick layer of brown lacquered fuel. I really didn't want to damage the paint underneath with anything too harsh, but acetone, lacquer thinner, mineral spirits, MEk substitute, isopropyl alcohol, soaking in wd40 for a week all did absolutley nothing, didn't soften it even. One swipe with a rag soaked in denatured alcohol turned the rag brown, a few seconds of light rubbing and i was back to the bright white paint underneath. The inside was full of loose powdered dried fuel and rust, i just vacuumed that all out and went straight to evaporust which got rid of everything.
Had one of these in 1980. It was mint. Bought it at a yard sale for $200. We used it at the tracks as a pit-bike.
I had a 1979 IT-175 when I was in high school, it was a pretty fast bike