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1975 Honda CB 250 Restoration

1205 Views 13 Replies 8 Participants Last post by  Porky
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Hi,
Been eyeing a 1975 cb250 that's been sitting out in the elements down the street from me and got me thinking about a restoration project....I am a newbie to working on bikes (change oil, change brake fluid, replace shocks is all I have done). I have been thinking maybe a restoration project just to learn more about motorcycle mechanics and learn how to wrench and eventually have a cool old bike to tool around on occasionally (this would not be my daily rider; I have two other bikes for that).
I talked to the guy and he said I can have it for $100 and he has the title. Last year he said he replaced the clutch and had it running but it wouldn't shift out of 1st gear.
Would this be a good project for a newbie to start on? I realize I will need to put $$ into it...$1500+?? and looks like a tear down and rebuild...
Thanks

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Airbox, side panels are missing, front fender's on backwards (not a deal-breaker :ROFLMAO:) kickstarter, headlight is missing. Battery, chain, see if the tank is full of rust, etc. You better go into this knowing you'll likely spend way more than it'll ever be worth, and you'll not make a dime for your labor. It IS a Honda, so I'm thinking parts are available. A project like this can be a major time-suck, but can be incredibly rewarding, especially if you plan on riding it. The internet is your friend...
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I agree with Gbudzien, even if your an experienced mechanic, that might be more of a project your willing to complete.

Parts may or may not be available, you might want to make a list, then do some looking.

My '85 Honda 650 Nighthawk is sometimes hard to find parts for, as an example, the original air filter is NLA. Luckily I found a foam replacement, but now I need to re-jet the carbs. Ebay and on-line motorcycle resellers just might be your best friends.

BTW, not shifting out of first gear might simply be a clutch adjustment, or something much more serious in the gearbox.
I think there are better ways to get started working on motorcycles. But, it might be a good parts bike, either to part-out or to fix a better CB250 you acquire.

Good luck!
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Airbox, side panels are missing, front fender's on backwards (not a deal-breaker :ROFLMAO:) kickstarter, headlight is missing. Battery, chain, see if the tank is full of rust, etc. You better go into this knowing you'll likely spend way more than it'll ever be worth, and you'll not make a dime for your labor. It IS a Honda, so I'm thinking parts are available. A project like this can be a major time-suck, but can be incredibly rewarding, especially if you plan on riding it. The internet is your friend...
Thanks for the reply! Yeah this would be more about learning than making money. I'm thinking around $1000-1500 in parts. If I got it in running shape, I would be happy.
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I agree with Gbudzien, even if your an experienced mechanic, that might be more of a project your willing to complete.

Parts may or may not be available, you might want to make a list, then do some looking.

My '85 Honda 650 Nighthawk is sometimes hard to find parts for, as an example, the original air filter is NLA. Luckily I found a foam replacement, but now I need to re-jet the carbs. Ebay and on-line motorcycle resellers just might be your best friends.

BTW, not shifting out of first gear might simply be a clutch adjustment, or something much more serious in the gearbox.
I think there are better ways to get started working on motorcycles. But, it might be a good parts bike, either to part-out or to fix a better CB250 you acquire.

Good luck!
Thanks for the reply! Good points...
I just finished a 1968 Bridgestone 90 for a friend, down to the last nut and bolt. I didn't keep track of my time, but if I did, I'd probably cry. Now, I did such a good job on that, I'm also in the middle of his 1971 Bridgestone 200 SS. :rofl2:I need friends who collect stamps or sumpthin'... I also have a '82 Honda CB900 that I'm trying to turn into...something...

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If it was running last year, shouldn't take too much to fix up. Most likely clutch-plates were installed improperly. First and/or last(outside) clutch-plates tends to be different and installation order matters, even though they all look identical, there are differences.

Yeah, check for rust in tank, do compression-test, look at brake-shoes and how worn they and drums are. Should definitely be good with multimeter, some good wiring projects ahead.
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Were those a native 12v system? I know somewhere in that era, possibly 74, the CB 125 was 6 volt.
It'd be a cool bike IMHO either way.

For a hundred bucks I'd definitely buy it. Start tear down for assessment before spending any more money. Carbs are a breeze to clean and access, check clutch install. Check rust in tank.

Of course before I did anything, I'd have to turn that fender around and hang the cluster back on the tree...
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If you're up to a complete bare-frame, last nut and bolt restoration, allow me to share some tips-

1. Tear down can be as important as assembly. Take pictures. Lots of pictures. High quality pictures, and store them on your computer. It may be a year or two before you reassemble. You ain't gonna remember where that little bracket goes, or how that wiring harness was routed. 1 gallon Zip-Lock bags are your friend. Put all the small pieces, hardware, etc. for every sub-assembly in a labeled bag, so they are all together.
2. Get a service manual!! You'd be surprised how many are free PDF files online.
3. Get a COLOR wiring schematic. Probably in the above manual. Even as your bike is a fairly simple model, you're not gonna remember where all those wires go, and the connectors aren't generally made idiot-proof like they are in cars.
4. It's easy to get overwhelmed. It's like eating an elephant, one bite at a time. Like, "Today I'm gonna rebuild the rear brake. Tear down, clean, paint/polish, reassemble, back in the bag for re-assembly time."
5. Decide early on if you're repainting and re-chroming pieces. This ain't cheap, and while you MIGHT be able to do your own painting, I don't think there's anything like "DIY chrome". The chrome bill for that 90 was $1300, The 200 I'm doing now is $1700. Searching for a reputable chrome or paint person can be a project by itself.
6. When tearing down, DON'T THROW ANYTHING AWAY! This goes for O-rings, gaskets, grommets, etc. You may not be able to buy new, you might have to match it up with something at the hardware store, or even make it yourself.
7. Take your time. This ain't something that's gonna take a weekend. This is a long-term relationship, and there'll be times when you have to step away. You don't have to drive this thing to work tomorrow, so there's no rush.

HTH. If I think of anything else, I'll add it. Don't let me discourage you! Like I said, if you take your time, avoid shortcuts, the finished product will WOW people. You will also have a better appreciation for someone else's restored car, motorcycle, etc.
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How can you go wrong at $100.00 bucks. For me it would have already been a done deal and with a title done deal.
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Thanks for the reply! Yeah this would be more about learning than making money. I'm thinking around $1000-1500 in parts. If I got it in running shape, I would be happy.
Just do it , stop thinking ,, Might be the best thing you ever did .. Very rewarding ....
GO FOR IT , Post pics ....
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If it doesn't work out, attach a 100ft chain to it and sell it as an anchor. 😊
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Not the best pep talk there Porky ... LOL ...
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I have been there and done that and I appreciate truth myself. :bigthumb:

Restoration is an act of LOVE, not just an idea or a whim.
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