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guile |
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guile Spanner Monkey
Joined: 20 Mar 2012 Karma :
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_Iain_ |
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_Iain_ Banned
Joined: 01 Feb 2012 Karma :
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Posted: 03:54 - 23 Mar 2012 Post subject: |
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Rust is bad.
Rusty shit doesnt move like it should.
Rusty metal is weak, and develops holes.
If its in the frame, walk away. If its surface rust in the exhaust pipe like this:
https://a8.sphotos.ak.fbcdn.net/hphotos-ak-snc7/402475_10151294006715054_816330053_23140478_895766779_n.jpg
Then not to worry about, however knock the seller down some money & budget for a new one.
If its in the chain, budget for replacement of it and the sprockets...although take note that this means the owner diddnt clean it & grease it up propperly.
They dont use rain covers because they cant be arsed to spend out on one & would rather their bike rotted. They wont stop all of it, but they will stop most. I personally own an oxford rainex cover and would reccomend it. I got it with the bike, which had lived under it all it's life, however the exhaust is still showing slight surface rust.
Use your head, if a bike looks neglected of if a member of their family says "It was parked out in the snow, didnt move for two months with no cover on it and STILL started up first time" then it's not been looked after. If it doesnt look like they've taken care of it, walk away...
Now, use your head next time. F*ck knows why i'm bothering replying - the answers are after all common sense, and/or readily availible on the internet under "Motorcycle buyers guide" searches on google... ____________________ Please be aware that the above post may be full of complete nonsense.
Riding: '07 KTM Duke II, Baotian BT49QT-20 Driving: '88 Volvo 340 |
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Teflon-Mike |
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Teflon-Mike tl;dr
Joined: 01 Jun 2010 Karma :
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Posted: 05:53 - 23 Mar 2012 Post subject: Re: How detrimental is rust on a motorbike? |
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guile wrote: | I am looking at some used 125s and a lot of them have rust on the engine, pipes, exhaust etc.
How bad is rust and should you steer well clear of any rusty bikes?
Why don't these people use plastic rain covers when parking? Would that stop the rust? |
Depends where it is; how bad it is.
I doubt you find 'rust' on many engine's though; most motorbike engines are aluminium.. it can go white & furry with oxidisation, but it's not 'rust' which is iron oxide you only get on iron or steel!
Exhaust's rust. Thats the nature of them. Rust through the outer chrome plating is quite normal, its crappy thin chrome. Ought to polish out. If blistered though, its come from the inside, which is where exausts rust from; petrol burns in air to form water and carbon di-oxide and some nasty nitreouse compounds which are often slightly acidic, all the ingredients for 'rust'.
Handlebars like exhausts, often rust on cheap chrome.
If you are looking at Kanton-Kentuck-Flied bikes (Cheap generic Chinese bikes!) then they are made from low grade steel and have very poor thin chrome and rust abismally. The Chinese built Japanese brand 125's; aren't a HUGE amount better; and the YBR is still rather prone; but then too is the Suzuki EN125 made in Spain I think, and the Honda CBF made in India.
What you have to be mindful of is whats cosmetic, and whats struictural.
Rust can look 'bad' but if its exhaust pipe chrome & handle-bars; then no great worry.
Frame brackets, swing arms, that kind of thing you need to give it a good scratch and see how deep it is.
Chains? Sign of neglect.
If you click my profile & have a look at the blogs of my Honda CB125 Super-Dream renovation; THAT bike was RUSTY, but twenty five year old Jap of 'quality' nothing structural, and properly treated, and protected, back on the road looking like new again. Likewise my DT125, and most surprisingly, REALY bad exhaust pipe, thirty years old, looked fit for teh scrap heap, but thick enough steel it actually cleaned up.
As for rain covers? Your showing your ignorance. Rain covers keep the saddle dry so you dont get a wet bum when you ride off. NOT a lot more!
As for protecting rust; they act like a closh; condensation under the cover will do as much harm as leaving the bike exposed, and letting it breath.
RAIN doesn't rust bikes; its fresh water. Its water plus salt, ie road crap that makes metal rust, and THAT is already on the bike, and water already in the air. Actually NOT covering the bike, letting the condensation dry out from wind and sun, can actually do more to save rust than sticking a pack-a-mak over it! ____________________ My Webby'Tef's-tQ, loads of stuff about my bikes, my Land-Rovers, and the stuff I do with them!
Current Bikes:'Honda VF1000F' ;'CB750F2N' ;'CB125TD ( 6 3 of em!)'; 'Montesa Cota 248'. Learner FAQ's:= 'U want to Ride a Motorbike! Where Do U start?' |
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_Iain_ |
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_Iain_ Banned
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blurredman |
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blurredman World Chat Champion
Joined: 18 Sep 2010 Karma :
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Kal |
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Kal World Chat Champion
Joined: 02 Jan 2007 Karma :
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Old Thread Alert!
The last post was made 12 years, 31 days ago. Instead of replying here, would creating a new thread be more useful? |
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