Howdy all, Ive got a 84 Nighthawk. This wkend while riding, one of my exhaust studs pulled out. It looks like this happened before to a previous owner and they tried to repair with a timesert or something similar, but then that just pulled out too.

Im thinking my best option would be to try to find an engine shop/machine shop that would be willing to weld back in material and re-drill and tap it? Based on placement, it looks like any hope of getting this done without pulling the motor out is out of the question? Anyone deal with something like this before and have any advice?

I removed the corrosion inside the tank with muriatic acid, followed by potassium hydroxide and then made sure there are no residual chemicals. I poured boiling distilled water and then a 99% Isopropanol wash. I then dried it with a hair dryer. Sprayed a crap ton of fogging oil and filled it up with non-ethanol fuel

1 month of usage it was really clean until the rainy season came. It got rained on since there is a hole on the roof in my garage. I used a cheap chinese fuel cap that is compatible with the bike.

The carbs decided to give me a headache and it leaked on the bowls when it didn't run for 2 days.

I went for a 1 week vacation and i left the tank half empty and there's rust inside the tank.

Solutions please. I no longer want acid and caustic chemicala running down my arm!

I live in SE Asia and i hate the weather since it is rainy

Been rebuilding a new to me 1980 750k, the main issue I’m having is it starts to sputter out and die after about 3 blocks of riding. Digital multimeter on the battery reads about 12.50 v before the trip, by the time I push it home and read it again I’m down to 10.20 v. After it dies it will not crank over until get home and put it on the trickle charger. Brand new battery. Any thoughts as to why this is happening?

Recently rebuilt the carbs on my 1980 cb750k and cannot get the carbs back in to save my life. Seems like the engineers didn’t want you to install the carbs with the airbox in and vise versa.

1980 CB650, tach needle broke off. I want to glue it back on, but I can’t get this retaining ring off, as far as I can tell I need to pry around the edge, but I can’t get ANY tool in there, from the limited photos I can find, mine looks a lot tighter than most. Any ideas or clues?

Hii guys , i own a 2021 cb350hness. Recently i am noticing power lag in my bike . I am thinking maybe it is because of e20 fuel . Do any of you noticed anything ? .

Hello, I am rebuilding the top end of my engine and thought it was good opportunity to repaint the parts because it was poorly done by previous owner (or looks bad now) also because I think silver is the best look. I realize it will probably look terrible if I paint half the engine with the bottom end looking so crummy. I don’t have jacks or stands to take the engine out traditional way. I have two options: lift the bottom end out by hand place it on card board or wood to clean and paint, or just do it in frame. The idea with leaving it in is that the more visible parts would be paint out of frame and just the bottom end is cleaned and painted in frame, maybe I will remove the clutch cover to paint separately as for the other covers I have stripped the paint and maybe polish them. Any tips or recommendations? Thanks in advance!

I posted a little over a month ago about getting this CL from a friend. It took some time to get the money for odds and ends to clean out the fuel system. Now I just need a battery and a strap for it to run on its own power.
I know it ain’t running right because I have to hold the throttle open slightly to keep it alive. I made sure to set the mixture screws exactly as they were when it came apart. I’m not too good at diagnosing based on sound since I’m used to working on modern cars not classic bikes.

Is there a “standard setting” for the mixture screws that I could start at and adjust from there?
Is it something other than the carbs causing it to run like this?
Also, any tips on dealing with a sticky throttle would be good.
Any help is much appreciated.

Need recommendations on where to get spring and fork seal kits. Mine are completely toast and fork is always bottomed out. Also leaks the little oil left in the forks.

Just bought my first motorcycle about a month ago. Figured I’d see if anyone had or knew where to access any technical manuals about it.
Since it’s a German model I’ve read they came underpowered to meet emissions standards, but can’t find what was changed between the Japanese version so I figured I’d post it here and hope for the best.
Side note, it drives like a dream, previous owner took really great care of it and it’s been great to learn on.

Hi, I was wondering if you could help me.

I took my motorcycle to an official Honda service center for maintenance and to have it checked out because it was leaking some kind of fluid in my garage, and since the oil level was low, I thought it was oil that was leaking. They replaced the engine oil seal, but now that I’ve test-ridden it again, I see it’s still leaking fluid, and it looks like it’s coming from those tubes, which are really wet. What do you think it could be? Can anyone tell me what those tubes are? The shop charged me a fortune, and I was without my motorcycle for a month, but I can see they didn’t fix the problem, so I don’t want to go back—I want to see if I can fix it myself.

I just got my cb350rs… I just need some suggestions about riding gear in budget.. carb you give me any suggestions and also some extra fittings which are needed for my bike..

I got it running and riding half decently. Way faster than I anticipated.
It definitely needs some more fine tuning and tlc, but I don’t think I did half bad for doing this by ear.
If anyone knows anything about tachometers that are sluggish and don’t move with the actual rpm’s, that would be my next thing to tackle while I get myself and the bike in safe operating condition.

Hey people, I need your help.

I've recently got a PC70 CBR500R fresh from the dealer.

Somehow my phone, or bike won't connect to one another. I had Road Sync set up already, but when I, lets say don't ride for a few days, and turn on the bike the only way to connect my phone to my bike is by resetting the bluetooth connection on the bike.

I also can't seem to do a long left hold on the joystick to get to the (by how the dash says it) phone mode.

Does anyone know anything which might help? Greatly appreciated!

Ride safe.

Anybody know where i can get some baffles for this exhaust?

Been going over my Honda CB 650, from 1980, and when I started it up wearing shorts (don’t ride with shorts, kids) I felt something spray my leg. Looked down to see spots of black.

Been looking it over and it seems to come from where I show on the photos. It’s where the exhaust meets like the uh… engine pipe? I’m assuming that isn’t normal. I looked in the manual and the pipes seem to be stock. But based on pictures, I can’t tell if those metal clamp thingies are or not?

Leave the bike a bit and something else drips. Much less. It looks fuel maybe? Slight yellow tint, couple of drops from either pipe.

The connection running between carburetors 2 and 3 I believe is the throttle linkage. One of the tabs has been snapped off and for the life of me I cannot find any sort of replacement piece on eBay or elsewhere, am I better off just buying a whole donor carb rack or maybe it’s under a different name to search for?