"Poor Kid" 1981 CB750K - first build
- Thread starter kraptastic k
- Start date
Hoosier Daddy
Earache my eye...
Were your ignition wires wrong , 1-4 and 2-3 coming off the coils?
kraptastic k
ask me how i got here
Oh yeah they're still incorrect. I have had some other priorities to handle recently. I almost wonder if that will solve a lot of problems. It would make sense why two cyls are not getting hot and there are soft pops coming from pipes... Could fuel get into exhaust and make that sound if two cyl aren't igniting the mixture?
Busy week ahead and no bike time in sight
Busy week ahead and no bike time in sight
kraptastic k
ask me how i got here
Just rewired those coil wires. Now the motherfucker wont start at all. Here we go again!
Left fuckin' coil pack is wired to cyl 1/4 and right fuckin' pack is wired to 2/3. Held choke to start. Got one backfire of smoke through cyl 1s carb and a nasty pop from the tail pipe but nothing fucking good. A few more tries, but still nothing. Shut the door and came inside. I'll keep the forums posted as I'm going to find a mechanic and stop swimming in the deep end
Left fuckin' coil pack is wired to cyl 1/4 and right fuckin' pack is wired to 2/3. Held choke to start. Got one backfire of smoke through cyl 1s carb and a nasty pop from the tail pipe but nothing fucking good. A few more tries, but still nothing. Shut the door and came inside. I'll keep the forums posted as I'm going to find a mechanic and stop swimming in the deep end
next thing to check then is the blue and the yellow wire going to the front of the coil packs. I think the correct way is blue to left and yellow to right. Either way just swap them over. If they are on the wrong way it makes it left 2&3 and right 1&4. So rather than just move the leads its better to have it correct and mover the blue and yellow wires.
Hoosier Daddy
Earache my eye...
yep, unless they are wired wrong down below...
Agreed... much easier to move just those two wires that have spade connectors.
Hoosier Daddy
Earache my eye...
Gotta love PO's :notlob said:
kraptastic k
ask me how i got here
I didn't die!
CB is running, still working out the kinks. It fell over on a trailer and suffered a tank dent, but I had a blast riding around a buddy's neighborhood after some local DTT members helped me tune those carbs up. In the end, we saw an electrical fire, countless carb adjustments, and more. If you have questions about the many gremlins we found, feel free to ask here.
Right now I have the CB waiting for title and licensure. I may sell the CX to the right buyer for some profit to cover the costs. Either way, I got to ride and I'm super close to doing it legally now. What a satisfying experience.
Immediate repairs are necessary, however, as I have not replaced that leaky ignition cover, and my rear wheel is not true. No sweat. Just wrapping up moving leases and soon my funds will go back to bikes.
1981 CB750K
1981 CX500C
CB is running, still working out the kinks. It fell over on a trailer and suffered a tank dent, but I had a blast riding around a buddy's neighborhood after some local DTT members helped me tune those carbs up. In the end, we saw an electrical fire, countless carb adjustments, and more. If you have questions about the many gremlins we found, feel free to ask here.
Right now I have the CB waiting for title and licensure. I may sell the CX to the right buyer for some profit to cover the costs. Either way, I got to ride and I'm super close to doing it legally now. What a satisfying experience.
Immediate repairs are necessary, however, as I have not replaced that leaky ignition cover, and my rear wheel is not true. No sweat. Just wrapping up moving leases and soon my funds will go back to bikes.
1981 CB750K
1981 CX500C
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kraptastic k
ask me how i got here
kraptastic k
ask me how i got here
Trying to find time to work on the bike is hard this past month, but I made time today. Since it is leaking oil, I haven't messed with it. I wanted to replace the ignition cover today but I can't access the hardware! I am trying to understand whether someone has changed them or if I'm lacking the tool. So this is holding me up, but once done there will be no fluid leaks at all!
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Yep, look for thinwall sockets.
kraptastic k
ask me how i got here
Hmm. Harbor freight or northern tool? I might have to order those tools... But I will have to get nasty on the bolts otherwise. Maybe I'll get the tools.
kraptastic k
ask me how i got here
Oh, I've learned that lesson. I need a frequent flier membership at the local bolt and tool shop!
kraptastic k
ask me how i got here
put a couple miles on the sucker after repairing all that nonsense... Rode a few times the past two weeks. Narrowly dodged getting a ticket from a benevolent cop. And since it appears to be working fine, I think I'll start taping up all the electrical. The rear wheel needs truing as well. I am learning more about the dead spots in my carbs. At full throttle the bike has no pull and becomes soggy, stumbles until I let off, backfire, then power returns to the wheel at low throttle. I am going to change the main jet one size down to find that power, then needle height, then mixture screws and float height.
... It's pretty fun
... It's pretty fun
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