"Parts Bike" a '77 rebuild thread

[robbie202]

https://imgur.com/a/DMIWOq4

Valves and belts done.
5 second video

[sparkyrasmus]

I see from the video that you have gone with a twin carb setup. Can you show some more pics?

[robbie202]

I see from the video that you have gone with a twin carb setup. Can you show some more pics?

yes i will post some as soon as i have something new to add. planning on using a dual-pull setup.

[robbie202]

[robbie202]

Ok where do i connect these last 2 wires?

[robbie202]

12v Power comes from the circuit on the new control unit which i drew in purple. There's no kill switch wires and no wht/grn as in the dyna instructions.

Do i connect the red wire (from dyna s) to the purple wire (12v from motogadget) and the other 2 contacts on the coil all together? I don't understand the path of the electricity.

[robbie202]

20220621_090930.jpg

Ok i think this is it

[Whiskerfish]

Looks pretty good to me. Just some thoughts..... Are you going to have any safety interlocks for starting? Clutch/ Neutral light? Also is the key going to kill power out to the coils through the M Unit? If I read this right Solenoid Terminal 1 will be hot all the time and according to your little note 5 and 6 will as well. Is there any issue with having the Reg /Rec getting power from Term 6, 24/7/365 or should that be switched? I believe in the OEM Setup the rectifier has a hot lead all the time but the regulator is switched. I do not know if the Ricks Reg/Rec is setup up for that?

[robbie202]

that's a good question about the constant power going to the reg/rec i had not thought about that but it looks correct from the diagram provided by revival cycles

https://revivalcycles.com/blogs/technic ... ring-guide

the diagram i posted is just what is needed to start the engine. will add the lights later as i go along.

[robbie202]

no start today but i pushed the button!

[robbie202]

Re did the timing and it started!
Ten second video with sound here https://imgur.com/a/Su8skUW
Got it running. not well but its running! this bike was parked from 1995 until today.
something obviously wrong but i don't know what.
so what is that awful high pitched rattling sound???
what do i check first?

[Chainman]

nice

[Whiskerfish]

Progress!!! I can not hear the noise you are referring to but one of the funky things I have found in the past is over tensioning of the timing belts. Make sure that you do not "assist" the tension set by the springs.

[robbie202]

Belts don't seem overly tight. Really can't place where its coming from i hope its not serious.

[gltriker]

Could get serious quickly with a water pump ceramic seal not being immersed in coolant while the engine is running