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Honda CB 350 1971 Restoration Project

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stinkwheel
Bovine Proctologist



Joined: 12 Jul 2004
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PostPosted: 11:21 - 12 Dec 2017    Post subject: Reply with quote

Teflon-Mike wrote:
stinkwheel wrote:
Teff. "Absolute first and second priority, top of the list, spend another £500 on wheels for it." Rolling Eyes


Nooooo Stink... try again! Old shed barn find bike, with ONE wire wheel...

THAT is the first thing to WORRY about.... not necessarily pay out on to 'sort' .

Does beg having a plan, to deal with, to secure two serviceable hubs, that £500 or mores worth of spokes and rubber can be assembled around at some point! But that is all, and once you have the plan, and the bits, that could be left almost until everything else is done.

Engines? Last thing a motorbike actually needs to work.... before you 'go', make sure you can 'stop'! And before that, make sure you 'go' in the right direction!

Brakes, tyres, wheels, steering and suspension, should come before engines... that do no more than shove you along.

Practically the engine can be pretty much last thing to tackle. You might lift a rocker cover to see if the cam-shaft is chewed, or a rocker broken or something... BUT you wont learn much of huge import until you tear down into the bowels.

Once there, in for a penny, in for a quid. You wont know if the valve seats need doing, or the rings are snapped or how bad bores may be, until you have taken the head off; you wont tell much about the state of big end journals and main bearings until you have split the crank-cases, and you have a full rebuild to contend with either which way, and a lot of oily bits lying about to get lost.

So... plan for the worst, hope for the best... expect that the motor, at some point, will have to come out, and will have to be torn down and reconditioned.. and will cost money... brackets can be stuck around that blind, and then the matter left until you have bottomed out all the rest, and can be sure that there is more than better chance you'll have a bike to stick motor in to at the end.

Here, the motor actually being seized can be a boon, deturing you from trying to tinker a dodo to life, or wasting lots of time, energy and money, trying to breath some useful life back into a clapped out old clunker, on its last legs, that really needs a complete rebuilt but teases you refusing to actually lie down and be dead, while you mess with carbs or ignition and exhausts, and do anything and everything, but look at oily bits!!


I couldn't disagree more.

If you have a viable motor and chassis, you'll be able to find some sort of cycle parts to get it on the road, even if it lands up being a real mongrel. Especially with the interchangeability of honda parts from that era.

No engine = no bike. It costs nothing to find out if the engine is a viable proposition.

I've had bikes where you couldn't physically get the engine apart. It could be a mud anchor for all you know.
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I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.
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pepperami
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Joined: 17 Jan 2010
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PostPosted: 13:26 - 12 Dec 2017    Post subject: Reply with quote

I agree with Mr Stinky on this one, ie make sure the engine and frame are viable first Thumbs Up

Seized engine?, diesel is your friend Thumbs Up
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Last edited by pepperami on 18:48 - 12 Dec 2017; edited 1 time in total
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redeem ouzzer
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Joined: 06 Oct 2015
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PostPosted: 18:46 - 12 Dec 2017    Post subject: Reply with quote

+1 the engine has to be at least semi viable. Rolling chassis can be mixed and matched using bits from any number of 70’s Hondas but a scrap engine is a scrap engine. You can’t freelance it.
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stevo as b4
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Joined: 17 Jul 2003
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PostPosted: 19:13 - 12 Dec 2017    Post subject: Reply with quote

With a bitsa mongrel that is a rider, not trying to be a looker or a anything like original, then I see the Tef point. But this only applies to cobbling together a work hack out of a shed full of old bike crap.

If you had a tatty bike with a solid chassis, then as with most things should the engine be fucked beyond repair, something else could be shoe horned in that's cheap and complete.

In all other cases engine last is bollocks, as on many original seminal bikes, it's the engine that makes them. Then the same for a special or hybrid bike, where all you really wanted from the donor bike was a motor and some chassis parts.

Building a cafe racer, a period modded road burner, or a historic race bike all rely on having a motor that's worth bothering with.

The first example though, would be like a daily hack superdream blowing up, and you having say an XS 250 lump under your bench doing nothing, and the time and skills to get it fitted and working in another bike.
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bikenut
World Chat Champion



Joined: 21 Nov 2011
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PostPosted: 12:15 - 13 Dec 2017    Post subject: bike Reply with quote

Superdream 250 engine to an xs250, bad to worse, but a yam rd250/350 air cooled 2t on the other hand.....fits a superdream frame !

As to the engine that's in the bike, seized or just stuck ??

Its been standing for ages so stuff will be stuck like valves and clutch plates etc., but you have a manual and know of cmsnl ?

Get the engine to turn first, but be aware that valves do stick, so be very careful.

If you take the "lid off" and the cam etc. is bad, so will the rest of the engine, but don't scrap it, even a totally fucked engine has some value, to the right person that is.
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