Honda CX 500 Forum banner
1 - 10 of 10 Posts

·
Registered
1980 CX500
Joined
·
5 Posts
Discussion Starter · #1 ·
Tire Wheel Cloud Fuel tank Sky

brand new to the forum. picked up this 80' Deluxe about a week ago, and joined the forum hoping for some answers and help for the issues I'm having. some backstory: bought the bike for $700, currently doesn't run but it turns over and starts up on starter fluid. cleaned out the carbs but currently waiting on a rebuild kit. thanks for reading, happy to be here.
 

·
Premium Member
1978 CX500 "The Grub", 1983 GL650I "Nimbus"
Joined
·
12,263 Posts
Welcome aboard!
Use the rubber parts from the kits, but clean and reuse the original brass. It's much better quality than aftermarket.
 
  • Like
Reactions: washoe

·
Super Moderator
'84 CX650E that is evolving into a GL500
Joined
·
18,698 Posts
If it starts with starting fluid the problem is probably in the carbs. If you've tried to clean them unsuccessfully you should consider getting Larry's Carb Book

Welcome to the forum. Please add your location and your bike's model and model year to your profile so that you don't have to remember to tell us every time and we don't have to keep asking when you forget (see Forum Settings link in my signature).

And welcome to the world of antique vehicle ownership (they own us, not the other way around). Your bike is about 4 decades old and may or may not have had all of the maintenance necessary to keep it safe & reliable so it is highly recommended to download the Factory Shop Manual for your model (available through the CX Wiki - link in my signature) and go through all of the service procedures, regardless of whether your bike has reached the specified mileage.
I also recommend looking on all rubber parts with suspicion because rubber does not age gracefully. Check the date codes on your tires and replace them if they are over 5 years old no matter how good they look & feel (old rubber simply cannot flow around the irregularities in the asphalt well enough to grip, especially if it is cool or wet). If your bike still has the original rubber brake line(s) (should be replaced every 2 or 3 fluid changes = 5 or 6 years) I recommend shopping for modern stainless braided ones (they last practically forever and double the life of the fluid). And don't forget things like the rad hoses and the boot between the engine and swingarm (they can crack on the bottom where you don't see it).
 

·
Registered
1980 CX500
Joined
·
5 Posts
Discussion Starter · #7 ·
If it starts with starting fluid the problem is probably in the carbs. If you've tried to clean them unsuccessfully you should consider getting Larry's Carb Book

Welcome to the forum. Please add your location and your bike's model and model year to your profile so that you don't have to remember to tell us every time and we don't have to keep asking when you forget (see Forum Settings link in my signature).

And welcome to the world of antique vehicle ownership (they own us, not the other way around). Your bike is about 4 decades old and may or may not have had all of the maintenance necessary to keep it safe & reliable so it is highly recommended to download the Factory Shop Manual for your model (available through the CX Wiki - link in my signature) and go through all of the service procedures, regardless of whether your bike has reached the specified mileage.
I also recommend looking on all rubber parts with suspicion because rubber does not age gracefully. Check the date codes on your tires and replace them if they are over 5 years old no matter how good they look & feel (old rubber simply cannot flow around the irregularities in the asphalt well enough to grip, especially if it is cool or wet). If your bike still has the original rubber brake line(s) (should be replaced every 2 or 3 fluid changes = 5 or 6 years) I recommend shopping for modern stainless braided ones (they last practically forever and double the life of the fluid). And don't forget things like the rad hoses and the boot between the engine and swingarm (they can crack on the bottom where you don't see it).
Update: cleaned the carbs again (still waiting on that carb kit but I got impatient) and put them back on, the bike started right up. I’ll be sure to add my location and bike info to my profile. And as far as manuals, I got the owners manual and the clymer-type manual for the bike included when I bought it. This is my second antique bike (the first was an 81 CM400T) and I’m excited to see where this one goes
 

·
Super Moderator
'84 CX650E that is evolving into a GL500
Joined
·
18,698 Posts
The Factory Shop Manuals for most bikes are written so that you pretty much have to be factory trained to understand them and an aftermarket shop manual is essential for the rest of us.
BUT that isn't the case for the CX/GL500/650 family of bikes. The FSMs for these bikes are well enough written that aftermarket manuals are at best secondary references and at worst (I'm talking about you, Clymer) liberally sprinkled with enough typos, errors & misinformation to make them virtually useless. Some would go so far as to say that the best use for the Clymer book is if one leg of the workbench is too short, but I say at least the coloured wiring drawings are easier to follow than the ones in the FSM so they are at least useful for that.

The FSM is a free download so there is no excuse for not using it.
 

·
Registered
1980 CX500
Joined
·
5 Posts
Discussion Starter · #9 ·
The Factory Shop Manuals for most bikes are written so that you pretty much have to be factory trained to understand them and an aftermarket shop manual is essential for the rest of us.
BUT that isn't the case for the CX/GL500/650 family of bikes. The FSMs for these bikes are well enough written that aftermarket manuals are at best secondary references and at worst (I'm talking about you, Clymer) liberally sprinkled with enough typos, errors & misinformation to make them virtually useless. Some would go so far as to say that the best use for the Clymer book is if one leg of the workbench is too short, but I say at least the coloured wiring drawings are easier to follow than the ones in the FSM so they are at least useful for that.

The FSM is a free download so there is no excuse for not using it.
Fair enough. I’ll look into downloading the factory manual. Thanks for the info
 

·
Super Moderator
'84 CX650E that is evolving into a GL500
Joined
·
18,698 Posts
While you're in the Wiki it wouldn't hurt to get the Honda Wire Color Codes chart and the Honda Common Service Manual (& anything else you think might be useful) too.
 
1 - 10 of 10 Posts
Top