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I'll finally have some time to start this weekend and not really sure where I should start!
This is truly a barn find and the key is long gone so I can't try to turn it over, but it was last registered in 82 so I don't have high hopes. I'm not too worried about the key because I wanted to replace the ignition switch with toggles anyway, hell I might even throw in RFID.
So where should I start? Stripping the frame down and making everything pretty or should I go through the carbs, adjust the timing/valves, and try to get the damn thing going?
sounds good. I'll definitely have to get the load of rust out of the tank too. When you say check wiring does that mean follow every connection on the wiring diagram or just check for frayed wires/stripped insulation? Sorry for the noob questions but this is my first bike build
All good man. Basically you're just looking for anything obvious at first. Make sure the fuse is good, connections are connected and not corroded. Basic stuff. In the end, you want to make sure the motor is working or at least serviceable. No point in doing anything else with the bike if its not. Checking compression should definitely be your first move.
deffinately get it running first. i find nothing kills motorvation on a project when you dont know a running engine isnt sitting at the heart of it. makes you want to get all the small distracting done just so you can ride the thing.
wiring checks can be as simple as visual checks to full on multimeter check all components for load and current.
get a service manual straight up. makes everything easier! theres a thread here in the manual section with free online manuals.
Yeah hearing it run would be some serious motivation. I did find a link to the manual over on hondatwins.net and I'm sure I'll be getting VERY comfortable with it :
Ok so I got a little work done yesterday before the rain started (my work space is outside). After looking over the bike a little more thoroughly, its obvious that this was someone else's abandoned project. All the fuel lines were missing, the carb bowls and diaphragm covers were each only held on by 1 bolt, and most of the wiring was disconnected.
Also when I took the carbs off, I noticed the intake on the engine had some debris in there and felt gritty. So my question is if that means I should disassemble and give a good cleaning before I try starting it/checking compression?
One other thing I forgot to mention in my first post: The "parts bike" is actually the titled frame, so I spent most of my day yesterday stripping that down.
looking good...i feel the pain of less than ideal workspaces. im in a garage at the moment but still working on the ground.
i would lash out on a new petcock...snap one up cause you never know when the supply for NOS parts for these bikes will run out.
ive never thought of electrolysis to revive and protect an old tank. would be a lot less trouble now and into the future than coating it with that kreeme stuff.
EDIT: also maybe just clean the intake before the compression test. if it has been started for a while, grit might not of entered the head yet. depending on how far you will take the project, engine would probably benefit from at minimum a fresh hone and rings.
Yeah the electrolysis results really surprised me. Hopefully I'll post some pics later when I get off work. Next weekend I'll clean the intake port as best I can and pour maybe about a teaspoon of oil down the spark plug holes before I do the compression test.
I need to order all new fuel hoses and inline filters, and I'm assuming I need 1/4" ID hose. Is this correct?
BTW, the build will be going pretty slow for a while because I can only work on the bike when I'm at my parents' house on the weekends.
Check for Stainless Carburator Screw sets....They are allen head and make taking the carbs apart and putting together less of a challenge then old rusty philips screws.
Check for Stainless Carburator Screw sets....They are allen head and make taking the carbs apart and putting together less of a challenge then old rusty philips screws.
Thanks for the heads up. I just ordered a set.. it sure beats going to the hardware store and trying to match up the threads!
So any info about the fuel hose size? And this might be a dumb question :-[ but are there any other hoses that are supposed to be connected to the carbs besides the fuel hoses?
See my build near the end...I started with 1/4 inch ID tygon, but found it too loose. I ended with 3/16 id with a tight fit. I also put nylon ratcheting clamps on. the lines are not coming off.
I found the tygon softening with the fuel. I believe the ethanol is the issue. I used a vinyl compound traditional clear fuel line and it seems to be much better. The vinyl lines do harden over time, so I will revisit this later.
So any info about the fuel hose size? And this might be a dumb question :-[ but are there any other hoses that are supposed to be connected to the carbs besides the fuel hoses?
There's the two overflow hoses that go from the bottom of the carbs to the swing armish area to prevent any overflowing gas from dumping on a hot crankcase. I do believe those three hoses are all of them.
a 3/32" id hose works for them...See my build, mine are yellow, they stand out....Also, a long hose from the battery vent (if you have a non-sealed battery) to the same area on the right side by the swing arm pivot. there are 2 shaped pieces of wire on the frame. The act as retainers so the hoses stay in the right position.
Alright, it's been almost a year since I've touched the bike, but that is about to change. I just finished school and have moved back home to where the bike. I want to do this right as I have no plans to resell the bike. So what should my plan of attack be? Again, neither motorcycle has been touched in nearly 30 years!
Both motors are "locked up" so I've poured some marvel mystery oil into the cylinders, but should I just plan on a complete tear down of the engine?
Alright fellas I had a few minutes to mess with the motorcycle today and decided to test compression. The carbs are already off the bike so I did the test with a cold engine and no carbs. The left cylinder is about 160 but the right was only 90! I haven't adjusted the valves yet but that wouldn't affect the compression that much would it??
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