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  1. '85 CB450SC no spark in left cylinder, weak spark generally. Help!

    Electrical Discussion
    Hello, I have been working on my buddies 1985 CB450SC Nighthawk over the past couple weeks. The bike is able to idle, but whenever any throttle is given it starts to die. it seams to die inconsistently, one sec it would rev alright for a sec then the next it would die immediately. Do you know...
  2. CDI Magician??

    Electrical Discussion
    Hi, I’ve got a 78 cb400ti and am getting no spark. I think I’ve narrowed it down to the CDI. They’re extremely expensive and hard to find. I’ve read in other posts there’s a guy named CDIMagician who makes them but I can’t find him. Anyone know where I can get a useable replacement that not...
  3. 1981 CM400T - sporadically no spark

    Electrical Discussion
    Hello, First of all sorry in advance for my bad English I'm from Germany and not really into posting on forums :) I have signed up to this forum because I have a weird issue with my Dads '81 CM400T which is really annoying and I don't know how to solve it. After pretty much standing still for...
  4. 1975 CB200T

    Electrical Discussion
    Hey all. It has been a while since I've been on here but because of this covid virus ive got an excuse to make some time to do some wrenching on my moto. Ive been working on restoring it since october 2018 and have had to take a break for the past 10 months or so. But now im back. Quite a...
  5. CB350 Has spark but wont start

    Engine Discussion
    Happy to be here everyone, I have read through several of these trying to diagnose an issue with a cb350 I just purchased. I have scoured this site trying multiple approaches but I am really not sure what my problem is and I am hoping someone here can help. Little background I basically got the...
  6. Points Sparking + Weak Spark to Plug 1971 CB350

    Electrical Discussion
    Hello, I just picked up a beautiful '71 CB350 and was riding around fine until suddenly I lost power, like the bike was running on just one cylinder. Lo and behold, I pulled the plugs, grounded them to the engine and turned her over: no spark to the right plug. Opened up the left side points...
  7. Spark Plug Fouling Questions

    Engine Discussion
    What do you guys think about this plug? They both look exactly the same, but I'm not completely sure if this means I'm running lean or rich. Thanks for any help.
  8. 71 CL350 no spark!!

    Engine Discussion
    I'll start by saying that i have new coils, PAMCO ignition, brand new battery, plugs are several months old, and rebuilt the carbs. Okay, now to the issue. So i was riding one day and all of a sudden i get a loss of power because it started running on one cylinder. i thought it was the carbs at...
  9. 92 CB250 CDI Wiring from scratch

    Electrical Discussion
    New to the forum, hope you guys can help me out. I searched the forum, but no luck. So I'm trying to help a friend with his project. It's a custom trike with a '92 CB250 Nighthawk engine. The wiring is just hacked up bits and pieces, and I need help getting it wired to run. I have a wiring...
  10. No spark on right side with new coils

    Electrical Discussion
    Hello, so i was having sparking issues on the left side and noticed the leads were fried so i replaced both coils with new caps and spark plugs. The weird thing is that after i installed them they were both giving spark and that was awesome, but when I went back the next day to go for a ride, I...
  11. 1974 CB450 Spark Plug Issue

    Electrical Discussion
    Hey guys, need some spark plug help. There must be something obvious I'm missing as this is my first time changing plugs since I got the bike. This has probably been discussed before but I could find specific threads for this issue. My bike is a 1974 CB450 and the old plugs don't have a cap on...
  12. 1978 CM 185T no spark no fire

    Electrical Discussion
    So i've had this project bike for a bit now but can't get over this hill figuring out how to get the bike to fire. I have fuel flowing, she's kicking over but i'm not getting any spark from the plugs. I put in a new battery, cleaned the carb, made sure that's all in tact. Wiring: As far as...
  13. CB450 Right Cylinder Firing Issues

    Electrical Discussion
    Hey Fam, I am new to the forum and fairly new to being a "bike mechanic." I recently purchased a 1968 Honda CB450 K1 and have been poking around on the forum to try to figure out a solution to a problem I am having with the right cylinder not firing. I switched the standard plugs out with NGK...
  14. Coil probs?

    Electrical Discussion
    Hello, Still working on my 68 cd175. My wife says she's glad I have a hobby. I just wish I could make it run. So... I see the points sparking, I've got the timing right on. But the plugs do not make a spark when I hold em next to the block. I have new plugs. And new plug caps today. So I decided...
  15. Barn Find 500T. No Spark

    Electrical Discussion
    Hey guys, newbie here to the forum and absolutely a newbie when it comes to motorcycle builds. I picked up a barn find 76 500T for $250. It didn't run. No carburetors and no battery. I installed a new battery and a few things don't work, but above all, there's no spark when i use the kick...
  16. 1974 CB360: Steps to diagnose no spark

    Engine Discussion
    Hi All, I have found some time to work on my 1974 CB 360, and was hoping to get some pointers(No pun intended :-) ). I have very limited mechanical knowledge... Background: My bike did not start when I bought it. I replaced the battery, and all of the electrics on the bike seem to work (the...
  17. No Spark on Left Side - Coil Issues ? 1970 CL350

    Electrical Discussion
    Bike is a 1970 CL350 - I am not getting spark on the left side at the plug boot. I have pulled the spark plug boot and attempted to ground to the engine and confirmed no spark on left. Did same for right and confirmed right was making spark. I removed the points cover and confirmed that spark...
  18. Lubing points?

    Electrical Discussion
    So I finally got my 1970 CB350 running but it was revving really high out of control randomly and I had to use the choke to bring the rpm's back down. I did some research and found out it was probably the lack of points lubricant. I ordered some Mallory distributor lube and didn't know exactly...
  19. Spark plugs carbon fouling quickly!

    Fuel Supply and Carburation
    Hey all. Still having my fouling issues with the plugs; they are dry and sooty black. I'm having to replace the plugs at least once every couple weeks (and I don't ride too often). Not sure it's a spark issue or if it's a fuel issue (and somehow I found myself in the engine category...). I'm not...
  20. Matching Plugs with Wires on my 1974 CB450

    Electrical Discussion
    I am keeping the stock coils on my CB450 K7 and everything in the engine and electrical is stock except the spark plug caps. I'm getting some aftermarket ones and using the NGK wire splicer. I cannot find any information on the specs for the wires coming out of the coils. I want to match them...
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