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Author Topic: Honda cb 650 custom project  (Read 1281 times)

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Offline Hokey412

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Honda cb 650 custom project
« on: April 17, 2014, 08:46:56 PM »
I am Receiving a Honda cb650 custom as a project bike to mess around with. The bike has been sitting in a garage for years. I'm just curious on where I should start? Should I even try to start it first? I'm sure the gas tank is disgusting inside and probably needs treated if not a new one. I'm a complete newbie when it comes to bikes but I'm getting it for free so I figure I might as well try to get it running right and driveable. Any input would be awesome. Thanks guys.
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Offline levimundt

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Re: Honda cb 650 custom project
« Reply #1 on: April 18, 2014, 04:25:54 AM »
when you first get it i would start by washing it, turning over the motor using ratchet to make sure it free, and charge the battery. the carbs will need to be cleaned before you even try to start also. your right about the tank, but there are some ways of cleaning it with vinegar and nuts and bolts, do a search and youll find some good info on that. once u kno the motor is free and carbs are clean, hook up a dummy gas tank and try to fire it.
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Offline Lostboy Steve

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Re: Honda cb 650 custom project
« Reply #2 on: April 18, 2014, 06:07:37 AM »
Quote from: levimundt on April 18, 2014, 04:25:54 AM
when you first get it i would start by washing it, turning over the motor using ratchet to make sure it free, and charge the battery. the carbs will need to be cleaned before you even try to start also. your right about the tank, but there are some ways of cleaning it with vinegar and nuts and bolts, do a search and youll find some good info on that. once u kno the motor is free and carbs are clean, hook up a dummy gas tank and try to fire it.

Pull out the sparkplugs and drip a little engine oil in the holes before you turn over the engine by hand.
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Online calj737

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Re: Honda cb 650 custom project
« Reply #3 on: April 18, 2014, 06:34:15 AM »
As Twisted said, remove plugs, don't use fuel, but turn the motor over after drizzling some penetrating or motor oil into the cylinders.

I'd strongly discourage using nuts and bolts in a gas tank to aide in de-rusting. Sure, they aide in "scuffin" but they can be a M-F'er to get out. If you DO put something metallic inside, use a length of regular chain, or even a bike chain. Grab one end, the whole thing comes out. But most chemical baths (vinegar included) don't need the agitation to remove rust.

Also, remove the battery from the bike, and attempt to charge it with a motorcycle charger. It's probably shot, but might still work. Do NOT jump the bike from a running car, this will do lots of damage.

Locate the manual (found elsewhere on this site) and perform the 3,000 mile service interval. This will aide you in determine the condition of the bike and identify and real major issues.
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"Of all tyrannies, a tyranny sincerely exercised for the good of it's victim may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated, but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience." - C.S. Lewis

Offline Hokey412

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Re: Honda cb 650 custom project
« Reply #4 on: April 18, 2014, 08:50:52 AM »
Yeah I kinda figured that I would have to clean out the carbs. From what I've seen looking around here it doesn't seem to bad. Just alot of remembering how it all goes back together and making sure all the holes are clear of debris. It's been sitting for about 5 years and I know it ran before they put it away so I'm hoping it's not to bad. Any suggestions about that carbs? Anything i have to watch out for? Thanks again.
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Online calj737

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Re: Honda cb 650 custom project
« Reply #5 on: April 18, 2014, 09:28:03 AM »
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"Of all tyrannies, a tyranny sincerely exercised for the good of it's victim may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated, but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience." - C.S. Lewis

Offline Hokey412

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Re: Honda cb 650 custom project
« Reply #6 on: April 18, 2014, 10:51:37 AM »
Awesome. Thanks guys.
« Last Edit: April 18, 2014, 10:58:38 AM by Hokey412 »
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Offline levimundt

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Re: Honda cb 650 custom project
« Reply #7 on: April 18, 2014, 08:18:50 PM »
soak the carbs in simple green for 12 hours. then use guitar string and run it through all the jets. youll be amazed at how clean they will be
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Offline grasscutter

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Re: Honda cb 650 custom project
« Reply #8 on: April 20, 2014, 08:15:57 AM »
Quote from: levimundt on April 18, 2014, 08:18:50 PM
soak the carbs in simple green for 12 hours.

Do not attempt to soak a full rack of carbs in simple green.
This is not how you clean carbs.
Do NOT do this.
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