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Re: "Parts Bike" a '77 rebuild thread

Posted: Wed Jun 15, 2022 1:34 pm
by robbie202
https://imgur.com/a/DMIWOq4

Valves and belts done.
5 second video

Re: "Parts Bike" a '77 rebuild thread

Posted: Wed Jun 15, 2022 4:18 pm
by sparkyrasmus
I see from the video that you have gone with a twin carb setup. Can you show some more pics?

Re: "Parts Bike" a '77 rebuild thread

Posted: Thu Jun 16, 2022 9:59 pm
by robbie202
sparkyrasmus wrote: Wed Jun 15, 2022 4:18 pm 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.

Re: "Parts Bike" a '77 rebuild thread

Posted: Sat Jun 18, 2022 9:04 pm
by robbie202
shakehands

Re: "Parts Bike" a '77 rebuild thread

Posted: Sat Jun 18, 2022 9:05 pm
by robbie202
Ok where do i connect these last 2 wires?

Re: "Parts Bike" a '77 rebuild thread

Posted: Sat Jun 18, 2022 9:13 pm
by 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.

Re: "Parts Bike" a '77 rebuild thread

Posted: Tue Jun 21, 2022 9:11 am
by robbie202
20220621_090930.jpg
20220621_090930.jpg (118.65 KiB) Viewed 425 times
Ok i think this is it

Re: "Parts Bike" a '77 rebuild thread

Posted: Tue Jun 21, 2022 9:32 am
by 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?

Re: "Parts Bike" a '77 rebuild thread

Posted: Wed Jun 22, 2022 9:09 am
by 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.

Re: "Parts Bike" a '77 rebuild thread

Posted: Wed Jun 22, 2022 8:55 pm
by robbie202
no start today but i pushed the button!

Re: "Parts Bike" a '77 rebuild thread

Posted: Wed Jul 06, 2022 2:38 pm
by 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?

Re: "Parts Bike" a '77 rebuild thread

Posted: Wed Jul 06, 2022 4:24 pm
by Chainman
action1 nice :8)

Re: "Parts Bike" a '77 rebuild thread

Posted: Thu Jul 07, 2022 6:42 am
by 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.

Re: "Parts Bike" a '77 rebuild thread

Posted: Thu Jul 07, 2022 9:57 am
by robbie202
Belts don't seem overly tight. Really can't place where its coming from i hope its not serious.

Re: "Parts Bike" a '77 rebuild thread

Posted: Thu Jul 07, 2022 11:53 am
by gltriker
Could get serious quickly with a water pump ceramic seal not being immersed in coolant while the engine is running 🤔