electrical

Okay so I have a 79 xs650 I built for 2 years I put a Hughes pma n regulator with a sparx capacitor. Now I can start the bike fine but give it a lil throttle n pops n shit now I redid my grounds n started testing things with multimeter I am getting up to 30 volts dc through the positive wire on...

Hi all, brand new to the forum - picked up a 1997 Dragstar 650 last Friday, full of hope and ambition. One week on and I'm an embittered old mess, muttering at my shoes! This is my first ever bike, and therefore first custom project and doubtless I have bitten off way more than I can sensibly...

Hi, My idle is not stable\running rough... Can an electrical problem be an issue? -The carbs just got cleaned out. (Jet, mixture screw, pilot, float height adjusted ....) -No air leaks on carb holders... -Petcock is fine... -XS air filters are clean.... -Cam chain was adjusted last...

I was noticing on my points that the block that rubs/rides the eccentric for the points isn't getting lubbed, because my felt isn't touching the eccentric. is it felt? what lube to use? I also noticed 3/4 of the rotation ,the rub isn't even touching the eccentric, but points open as they...

My Battery is crap, wont hold a charge at all. I have a functioning Huges Hanbuilt PMA system. Will the bike run poorly because of the bad battery even with the properly functioning PMA? I mean once it is running it puts out plenty of juice. does seem to suffer and run poorly at red lights. I...

Ok so I post back a week or so ago about lost spark. Battery is charge but have no spark even when you turn it off and on. Also have a problem with the neutral switch as in it seems to have stopped working so the starter will not work either. So can I check the coil like I would a car coil by...

Hello, Im pretty new when it comes to EVERYTHING, i have some knowledge here and there but im learning as i go. Anyways, my point here is, i just got a project bike with a full stock engine and i want to run this bike without a battery, so i was reading that i would need a PMA KIT and a PAMCO...

OK, when I tore into my bike's wiring to check out it's sudden death electrical problem (which went away as mysteriously as it showed up after I pulled apart every last electrical connector and pushed them all back together again) I found an orphan amongst the rats nest of plug-ins inside...

hello I had to dismount and paint my battery compartment and when I put it back I have a little black wire about 10cm long with round terminal with hols to be screwed. Does anybody know where it goes ? My bike is 1H1 1978 Europ model

I'm not against these 2, I like the headlight relay idea and while I'm wiring it up for a capacitor, I may go back to a battery later, so the starter relay is fine too. However ..... Before I start trying to find a home for these things in the new wiring nest ..... has anyone replaced them...

So I was firing up my 77 today. PAMCO ignition and e-advance. Initially when I went to fire it up, was struggling to get it going, had some pretty fierce kickback and backfire out of the carbs. Retarded the timing enough and got it to start, but was still extremely far advanced. On a timing...

Has anyone ever seen a different mechanical timing advance I.e Harley, Honda, kawasaski used in place of the oem Yamaha piece? A Harley advance seems like the most common and easy to find, driving prices way down...just saying

I need to know what is the best resource for wiring diagram for dummies. I had taken the wires out of the headlamp bucket (I did label them) but have a few that I am not sure where they connect to. I have a colored wiring diagram but damn if I can figure it out, especially with the 8 different...

Had it running the other day when all at once it died. Pull the plugs out to check for spark and have no spark to either one. Pulled gas tank off and pulled the plug going to the coil. One wire has battery voltage on it all the time and the other one has no voltage on it. How do I trouble...

I picked up a set for a 79 bike super cheap on ebay, it was an expiring auction so I snapped it up. Only problem is they cut all the wires so I have to splice them back onto the connectors. The layout of the lights is a little different, so I'm not 100% sure that this set will work on my...

Currently not getting an spark on the left plug. Testing with a spark tester and right side has a nice and healthy spark but left side not getting any current at all. Faulty coil? Rotor magnet/TCI Pickup issue. Don't imagine it's a magnet/pickup issue as I'm getting a good spark on the left...

have a 1980 650 and needing to get pamco ignition and pma system. Wondering what is the best source to buy these, only one i know of is MikesXs heres what i would be purchasing/need https://www.mikesxs.net/parts/yamaha-xs650-complete-high-output-standard-ignition-xscharge-pma-package...

I thought after being a lurker for the last year, I would finally get around to introducing myself and my bike. I bought the bike with 18K miles on it and it ran great from the get go. I changed tires, Pirelli in the back and an old school Dunlop in the front, 17/34 sprockets, O ring chain...

Hey guys. Just put the motor back in my bike last night, came out this morning to do some little things before i try and start it. Trying to set my points and man what a headache this is. As i spin the motor i cant seem to get the points to open a measurable distance at all. Right nor left...

First some back story. I purchased a 75 XS650 that was turned into a bobber. It came with a box of parts, another rolling frame and another engine (1981). The PO was selling because he "couldnt get it running right". Upon inspection, someone had smeared RTV around the the cylinder base to...