Author Topic: honda cb 500 four motor build budjet? (Read 1609 times)

kranta · « **on:** January 14, 2015, 09:51:57 AM »

so, how much yours motor built is usually cost?? i have hold bottom end im gone build hold motor from it and my budjet its something like 300-350 euros.
and how much it gone cost if i have to buy used kick starter shaft, cylinder, cam chain tensioner cylinder head and cam. and new parts pistons, bore to fit in cylinder and maybe crank shafts bearings??
and can someone tell me how much they roughly gone much??

Davidov · « **Reply #1 on:** January 14, 2015, 09:57:30 AM »

It would be cheaper to buy a spare engine that is complete. Then you can rebuild according to what it needs serviced.

Trying to piece a engine together will empty your funds quickly.

flybox1 · « **Reply #2 on:** January 14, 2015, 11:32:02 AM »

I bought a 750F3 motor for $100US. It was in pieces, in several boxes.
I spent another $1500US+ (I stopped counting

) in tooling and parts to do a hone/re-ring, new cam chain/rollers, primary chain/roller, top end, seals, orings, gaskets, paint, sealants...etc. I did it cheap, compared to some, here

bjbuchanan · « **Reply #3 on:** January 14, 2015, 03:56:21 PM »

I rebuilt my 750k2 engine for like 500$ including machine work for the 836cc overview. A long list of things I wish I could have done but it is totally leak proof and runs like a top.

As soon as you mentioned euros I saw your budget go up. Everything is cheaper in the US (generally) and usually much easier to find for these sohc bikes

Stev-o · « **Reply #4 on:** January 14, 2015, 04:22:05 PM »

+1 buy a motor, a 550. That's relatively easy to find here in the States but I think he's in Europe, may not be so simple.

kranta · « **Reply #5 on:** January 15, 2015, 05:08:39 AM »

yeah, im from finland and here if you buy 500 or 550 hold motor (run or not) it gone be 800-1300 euros, so it is in dollars something like 1500-2000dollars.

but i bought my bottom end last weekend it was very cheap, but it was from crash bike and when it was crashed.
but should it be cheaper if im gone buy hold used top end?

trigger · « **Reply #6 on:** January 15, 2015, 12:37:56 PM »

I got my hands on one of the only UK 1971 CB500K0's that had the top end missing. The bottom end cost 350 euro in parts to re-build. Found a top end in the USA from a low mileage bike at $100 and shipped it to the UK for $90. Fitted new piston rings,seals,gaskets and the engine was fitted.
The cam chain tensioner is one of the most expensive parts on these engines.

wowbagger · « **Reply #7 on:** January 15, 2015, 05:49:00 PM »

Make sure to check the primary chain on your CB500. Mine had stretched at was starting to make contact with the oil line on the bottom of the case. Cost me $125 from DavidSilverSpares to replace. Also, plasti-gauge the bearing journals while you're at it and replace anything out of spec. Once you know the bottom half is solid then start looking for a decent top half.

Or, just pick up a spare engine or parts bike. It will be cheaper.

kranta · « **Reply #8 on:** January 15, 2015, 09:41:51 PM »

yes, i am going to replace all what are out of specs. and in my lower case is stamped BBABA, what that mean?
but first i have do take crank cases to welder

wowbagger · « **Reply #9 on:** January 16, 2015, 05:00:58 AM »

The stamping code is what you need to match to the codes on the crank arms. In your manual there's a table to match the codes up to that will tell you the proper bearing journals you need.

Sent from my iPhone using Tapatalk

strynboen · « **Reply #10 on:** January 16, 2015, 07:52:58 AM »

yes.... go for a 500 or 550 komplet engine...often the elektric is missing or kaburettors/airfilter...so be care to get all parts needet to build your bike

its alvays best to start aut vith a vreack or defekt....but KOMPLET bike...all this baying parts..kosts hell aut of money

kranta · « **Reply #11 on:** January 16, 2015, 08:31:28 AM »

firts now im gone get cases to welder. then im gone measure bearings and if they are in specks im not replacing anything because primary chain is almost new. but i have to buy kick starter axel. and then im gone paint the cases and then assembly bottom end.

MickB · « **Reply #12 on:** January 16, 2015, 12:31:20 PM »

Kranta restoration is like being in love, it's like taking your girlfriend out, if she's a stunner you stop counting how much you spend, if she's ugly you count the cost.

Stev-o · « **Reply #13 on:** January 16, 2015, 05:56:55 PM »

Quote from: kranta on January 15, 2015, 09:41:51 PM

yes, i am going to replace all what are out of specs. and in my lower case is stamped BBABA, what that mean?

Are you sure it's not ABBA?!

kranta · « **Reply #14 on:** January 17, 2015, 12:52:15 AM »

yeah. its BBABA.

strynboen · « **Reply #15 on:** January 17, 2015, 07:14:16 AM »

you have to be araund 45-50 to have heard of AbbA.........benny agneta bjørn...a..hvat is the last a,name

kranta · « **Reply #16 on:** January 18, 2015, 04:43:34 AM »

i do know ABBA, but i didnt notice joke.

Stev-o · « **Reply #17 on:** January 18, 2015, 06:30:56 AM »

Quote from: kranta on January 18, 2015, 04:43:34 AM

i do know ABBA, but i didnt notice joke.

Sorry, ABBA is a big joke in U.S.

Davidov · « **Reply #18 on:** January 18, 2015, 08:01:36 AM »

Good to see you are making the most of your resources.
That would be very challenging to put together an engine with limited supplies.

kranta · « **Reply #19 on:** January 18, 2015, 08:03:11 AM »

yeah, its kind big joke too here in finland. and its even our neighbour country.

but back to motors. so, now i got one big problem. i have to buy plastigauge from germany and i dont know how many i need them because i have 10 bearings to measure and 5 bearing surfaces.
but, good news. i have one mate who have cylinder and pistons.

and my shopping list is this:
-kick starter axel. used and shipped in finland something like 40 euros
-welder (how weld my crank cases)
-gasket paste.
-gearshift drum guide screw system
-plastigauge

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Author Topic: honda cb 500 four motor build budjet? (Read 1609 times)