st90

Hi everyone! I'm trying to get my bike back together but am struggling to find the above. Does anyone out there have one for sale or know someone who might be selling one? Thanks in advance! Sandra

Hi everyone! I'm in the later stages of rebuilding /restoring a 1973 Honda st90 and my blinkers are not blinking. The light just burns solid when I turn them on. Thinking it may be the flasher relay. I have a spare but it's as old as the other, so I am not sure about either's functionality. How...

I wanted to start a somewhat generic thread that can be used to ask questions without cluttering up the forum with a lot of separate threads. Hopefully this is a good approach and I'll get started with my two immediate questions. Currently I'm working on fixing up a '73 ST90 and have gotten...

I just purchased a ST90 with 6400 miles on the clock. The bike appears to have been well-taken care of over its life. I got it running again, but it has quite a clackety noise coming from what I believe is the cam chain. I attempted to tension the chain via the bottom bolt cover/threaded rod...

Hi all, I'm new to this, but working on a '73 ST90 K0 project. It's generally going well, but I ran into an issue. Per the Clymer's manual, you simply remove the points plate, remove the center bolt and the timing advance plate is supposed to come right off. However, it won't budge and I...

I am restoring an ST90 and have decided to paint some engine parts this Saturday as it's supposed to be 78 degrees and down to 55% humidity. After reading many threads on the subject I'm planning on going the rattlecan route and painting the stator cover, sprocket cover and right crankcase with...

Hi All, I caught the restoration bug this past July and managed to score a "barn find" 1975 ST90 for my first restoration project. I had not done a restoration previously, but I am a relatively handy and thought I would give it a try. I want to take the opportunity to share my experience for...

I am in the final stages of my 1975 ST90 restoration. I believe (although am not sure) that the bike had a " Operator Only" label on it originally. I cannot confirm this or determine the location for the label. Can anyone help? A photo of an originally installed label would be great. Thanks

I recently had my ST90 frame powder coated. I specifically told the guy to not coat the stainless steel trim on the top of the frame or the VIN plate. When I got it back I was in a hurry to get to work so I wrapped it in a blanket, paid and left. Now that I am ready to start putting the bike...

I am in the process of refinishing the muffler on my ST90. I notice that there are two straps bolted to the bottom side of the muffler body. Can anyone tell me what these are for? Are these access ports of some kind? My muffler is generally in good condition externally, but I have poured about 2...

Hello all. In my bored out ST90 top end rebuild I have run into a problem with my DRATV 53.5 mm piston. I have just installed a DRATV performence camshaft with help from this forum. However when I try to turn the flywheel it gets really hard to turn right before top dead center and when I...

Got a '72 st90 a couple of weeks ago and fixed the engine up and im currently stuck on a issue of not getting a spark to the spark plug. I had lights and a horn working with a brand new battery, but now the lights or horn arent working. i am currently trying to get the gear switched into...

Got a '72 st90 a couple of weeks ago and fixed the engine up and im currently stuck on a issue of not getting a spark to the spark plug. I had lights and a horn working with a brand new battery, but now the lights or horn arent working. i am currently trying to get the gear switched into...

Looking for a luggage rack to fit my Honda ST90. I understand CL100 and CB100 luggage rack will also fit my bike. Thanks, Sportster

I have a 1973 Honda ST90 and have two issues. Problem #1: I have completely rebuilt/restored this bike. I did a complete teardown of the Carb, cleaned it, put it back together and set it to the factory adjustment settings. The bike will not idle. It either races too high and I have to hit the...

hey guys, long time listener, first time caller... I have an st-90, I want to install the li-fan 125 engine, I found this kit on ebay NEW LIFAN 125CC ENGINE MOTOR PIT DIRT POCKET BIKE COMBO KIT | eBay Can you tell me what else I would need to purchase?:39: I want to do the 12v upgrade I've...

I have been having trouble with my 72 ST90 since I bought it. Took it to two shops with the complaint that it wont start, and a possible gas leak. The first shop gave it a once over and said it was just out of gas, I explained I filled the tank up a few days previously and there was no way it...

hey everybody, this is my first post and i'm happy to be here..:) I have a 74 yellow st90 my stock engine's kick start broke off, and i'm having leaks from the carb.. even though I have a spare kick start rod, i'm figuring it would be easier to just throw a new engine on there instead of...

HI!! i m half way restoring a 1973 honda st90. The bike was painted in tahitian red 2 pack. Now Im getting to restoring all the bolts and nuts with phosphoric acid and then ill dip them in the black oxide kit for rust prevention. Now the question is: Does anyone have the torque specs for the...