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Hello. I swear the carb is clean. Not only did I meticulously clean them, but I bought an ultra sonic cleaner. I will say the exhaust has a strong fuel odor, so i am thinking the fuel isn't igniting in the cylinder, I think it might be electronic in nature. Perhaps the coils are worn out and...

Hello, I recently acquired a 1979 xs650 special and for whatever reason, it's missing it's side stand. If you have one available, let me know how much you want shipped to the Seattle area, 98021. Thank you!

Hello. My bike won't start I will get a pop in my carb some smoke will come out the backs and my kickstarter will kickback hard as heck (which can be painful) I've searched the forum and it seems like it's a common problem when timing is too advanced, the solution is to retard the timing a...

I just got a yamaha 1963 YG1 . But I am not getting spark. When I turn the key on nothing seems to work except for the horn.... All the wires are connected. I got my ground wire screwed down to the same the place as the screw where the ignition goes. I just got a NOS ignition switch so it...

Hello. I have a set of 1978 BS38's . One of the diaphragms had a whole in it so I bought a set of used ones off a guy but his appear to be older . Will these still work I noticed there isn't a tab on this set. Here is a picture of the diaphragms I bought (left) and the original diaphragm...

I currently have a 1978 engine breather on my 81 engine. I feel like my engine has too much compression , it’s super hard to kick , and sometimes it kicks back, I’m wondering if perhaps the symptoms are caused by the breather being from the wrong year.

Hello im looking to get new jets for my 81 xs400 special 2 Bs34 carbs. I need to order new jets for it. The mains in there are 142.5 which are too big. I believe stock is 135. I also want to order 42.5 pilots since the current ones in there are marred up and stripped. I was going to try and...

I'm looking for a stock ignition switch with key. Can PayPal. Let me know the price !

I went ahead and bought an aftermarket switch. But in having a hard time finding a simplified diagram. To wire it up. My stock harness should be Yellow Yellow/blue Dark green Dark green Blue green Yellow blue. Here's a picture of the aftermarket switch I know someone knows these wires a...

Hello, my tank is from what I believe to be a 78 special, I'm thinking these petcocks are swapped since they both appear to be facing the same direction. One was leaking so I took it apart to see what was happening and the washer was bent out of shape so I tried to straighten then out and...

I know old Honda's The Yamaha YL BMW A lot of bikes had this. I like the look, but I don't see too many available for a reasonable price. I would love to put one on my xs

When I bought my bike it came with this 2 Into 1 exhaust that sounds like a tin can. It high pitches and crackly and sounds like a dirt bike. I want it to sound quieter, low pitches and muffled like a purr. What's the best way to accomplish this sound? I know a 2 into 2 exhaust is favorable...

I've converted all my lights to l.e.d. except for the headlight. Also I have it set where the lights are off unless I turn them on via the light switch. When I start my bike I can see my LEDs softly flickering even though the switch is off. Is that happening because of the rotor discharging ? Is...

Hello. My bike has been sitting for a bit over the winter and it's starting to get a little warmer out here in the Chicago area, my bike was running pretty decent before I parked it. But when I tried riding it again it just died in the middle of fourth gear and I had to push it home. I thought...

I know what you're going to say This is all covered in the tech section. Try searching other threads. Read the carb guide But this is such a finicky situation that it truly takes experience. I've ordered the uni filters with the red sock. My bike is an 81 engine with bs38s from a 78...

I'm trying to simplify my wires. My plan is to eliminate all the 10 amp fuses and keep only the 20 amp main fuse. There's a junction of red/white and brown wires. Are they technically the same thing ? I assume that the red/white wires draw power from the brown wire that is common power. The...

First. I have a 1981 engine but in using the wiring and electrical components from a 78 special. I am getting a smaller battery to eliminate the battery box. I am eliminating the electric start so I'm not worried about grinding the starter. But I would like to eliminate as many extra wires and...

I got some on off toggle switches and some three way switches and momentary switch. I'd like to put the starter on the momentary switch. The turn signals on the three way selector switch. And the kill switch on a toggle and the headlights on a toggle. I'm thinking of doing just on/off for the...

I've been seeing people that run the original air box with a new liner. Various pod filters. But me. I don't have any filters at all. So my question is, if I am starting from scratch, what is the best option for performance. Side questions. What do I do with the breathers above the carbs ...

I just rewired my charging system, but my bike wasn't starting before that either. I have power at the lead terminals. But less than my battery. One is 11.59 volts and the other is 11.57. the battery is at 12.06 volts. I'm using the mp08 Honda coil I'm using NGK wires caps and spark plugs...