|
Author |
Message |
Easy-X |
This post is not being displayed .
|
Easy-X Super Spammer
Joined: 08 Mar 2019 Karma :
|
Posted: 23:42 - 20 Apr 2019 Post subject: A n00b polishing a turd |
|
|
So no one guessed what I was working on when I posted this:
https://i.imgur.com/tTUDpRa.jpg
An oblique shot: this is the top of the engine of what must be the cheapest Chinese scooter I have ever seen. It had been sitting in my neighbour's garden neglected for a while and I thought I'd resurrect it...
What I have is a 2012 Jonway "Madness" 50cc 4-stroke scooter. (A somewhat ironic name.) It didn't work when it passed into my hands but how hard could such a simple thing be to fix up?
I started by striping off all the panels to get at the wiring and engine and I almost pissed myself laughing when I found this!
https://i.imgur.com/NYLPNHe.jpg
Yes, lurking under the covers someone previously fitted an immobiliser! Must have cost half as much as the bike Well, that'd might be a continual annoyance so that's the first thing I bypassed
Spark, Squirt, Bang... that's the recipe! Let's spark first...
Luckily I had a fresh battery on hand as I didn't like the looks of the one it came with. The starter turned over, lovely! Compression was good... even better! But no spark
Ripped out the coil and tested: zero resistance across the terminals so that goes in the bin. Feck, now I have to start buying things; £3.89 for a coil - what a heartbreak
Now spark is good! Onto the "squirt" the carb. Not a splutter from this Then I thought of how long the fuel might have been sitting in the tank and threw that away and stripped and cleaned the carb.
Now I'm getting a splutter when it turns over! With a little assistance of one of the kind BCF members I worked out the pilot jet was still blocked. You know how ppl say "measure twice and cut once" well with carbs it seems to be "clean twice to start cleanly"
Once you get the thing going I find it very satisfying to spend the next half hour pissing about with the idle and A/F mixture screws. Purring like a kitten now.
I took a break from the engine to check out the panels: pretty disgusting The black had faded to grey and the silver flaked off. "No expense will be spent!" so off I went to Poundland for some rattle cans.
Here's the front panel with a little light sanding on the right and unsanded on the left:
https://i.imgur.com/RQYb6Pn.jpg
And here it is painted and back on the... err... vehicle:
https://i.imgur.com/2kxXC2c.jpg
Wow... that is terrible but now you know what a quid will get you The silver bit was sanded, washed and painted by my granddaughter. She's only 5 so go easy
Here's the side panels one I started sanding, one not:
https://i.imgur.com/SG9Q8oN.jpg
The lettering is some vinyl crap. I made sure to do a particularly poor job there so when you see this close up...
https://i.imgur.com/mENs9Fm.jpg
...you'll just about see the outline of the letters through the paint. A hint of Madness if you will.
Well that's the end of Day One. Tomorrow I'm going to have a look at the CV belt/gear/clutch/thingy as twisting the throttle doesn't make the wheel go round which is pretty important I guess. ____________________ Husqvarna Vitpilen 401, Yamaha XSR700, Honda Rebel, Yamaha DT175, Suzuki SV650 (loan) Fazer 600, Keeway Superlight 125, 50cc turd scooter |
|
Back to top |
|
You must be logged in to rate posts |
|
|
mentalboy |
This post is not being displayed .
|
mentalboy World Chat Champion
Joined: 05 May 2012 Karma :
|
|
Back to top |
|
You must be logged in to rate posts |
|
|
Sister Sledge |
This post is not being displayed .
|
Sister Sledge World Chat Champion
Joined: 17 Aug 2018 Karma :
|
|
Back to top |
|
You must be logged in to rate posts |
|
|
Easy-X |
This post is not being displayed .
|
Easy-X Super Spammer
Joined: 08 Mar 2019 Karma :
|
Posted: 11:16 - 21 Apr 2019 Post subject: |
|
|
So far I've bought a coil, some fresh petrol and some poundland rattle cans. I only started the painting once I knew the engine would run, more for a change of pace than anything else.
Fair point on the forks. I have cleaned up chrome almost as bad with some Autosol before but I think these have actually seized completely ____________________ Husqvarna Vitpilen 401, Yamaha XSR700, Honda Rebel, Yamaha DT175, Suzuki SV650 (loan) Fazer 600, Keeway Superlight 125, 50cc turd scooter |
|
Back to top |
|
You must be logged in to rate posts |
|
|
wr6133 |
This post is not being displayed .
|
wr6133 World Chat Champion
Joined: 31 Dec 2013 Karma :
|
Posted: 12:55 - 21 Apr 2019 Post subject: |
|
|
139QMB engine GY6 clone?
Any part costs pennies I wouldn't worry about the forks as almost any GY6 clone can offer replacements (so pretty much any chinese 4 stroke 50/125 and some Peugeots).
Bore kit with big valve head is under £50 and with a pipe, filter, variator and carb you can get close to 50MPH (depending on fatness of rider). The CC quoted on most of the kits is fantasy, for most of the 139QMB motors without boring out the casing the biggest you can go is 50mm (a genuine 81cc but usually advertised as 100).
They are really fun to tune/piss around with. Parts are so cheap you can mess about endlessly. I had a vClic and thoroughly enjoyed mucking about with it, though by the time I gave it away it would thrash a (quality) belt in under 200 miles
If you scrape taobao and aliexpress you can even find 4 valve heads and long stroke cranks |
|
Back to top |
|
You must be logged in to rate posts |
|
|
Easy-X |
This post is not being displayed .
|
Easy-X Super Spammer
Joined: 08 Mar 2019 Karma :
|
Posted: 13:37 - 21 Apr 2019 Post subject: |
|
|
Yes, mucking about with something that cost nothing and has parts for pennies seems sensible before tackling something more... elaborate
Started it up again this morning - satisfying that pretty much took no effort... I think 2 presses of the button and a tweak of the throttle.
Unfortunately I think the CVT drive has completely seized: everything rotates but the important innie-outie bits (variator?) don't want to move
I think disassembly and cleaning will sort it, everything looks in pretty good condition, now where did I put that impact driver...
Oh yes, that's right, I don't have one! B&Q always bang on about their Bank Holiday sales... what would be the chances?
Hmm... Ryobi 18V that does 220Nm, is that enough? ____________________ Husqvarna Vitpilen 401, Yamaha XSR700, Honda Rebel, Yamaha DT175, Suzuki SV650 (loan) Fazer 600, Keeway Superlight 125, 50cc turd scooter |
|
Back to top |
|
You must be logged in to rate posts |
|
|
wr6133 |
This post is not being displayed .
|
wr6133 World Chat Champion
Joined: 31 Dec 2013 Karma :
|
|
Back to top |
|
You must be logged in to rate posts |
|
|
Easy-X |
This post is not being displayed .
|
Easy-X Super Spammer
Joined: 08 Mar 2019 Karma :
|
|
Back to top |
|
You must be logged in to rate posts |
|
|
Riejufixing |
This post is not being displayed .
|
Riejufixing World Chat Champion
Joined: 24 Jun 2018 Karma :
|
|
Back to top |
|
You must be logged in to rate posts |
|
|
stevo as b4 |
This post is not being displayed .
|
stevo as b4 World Chat Champion
Joined: 17 Jul 2003 Karma :
|
|
Back to top |
|
You must be logged in to rate posts |
|
|
Riejufixing |
This post is not being displayed .
|
Riejufixing World Chat Champion
Joined: 24 Jun 2018 Karma :
|
|
Back to top |
|
You must be logged in to rate posts |
|
|
wr6133 |
This post is not being displayed .
|
wr6133 World Chat Champion
Joined: 31 Dec 2013 Karma :
|
|
Back to top |
|
You must be logged in to rate posts |
|
|
stevo as b4 |
This post is not being displayed .
|
stevo as b4 World Chat Champion
Joined: 17 Jul 2003 Karma :
|
|
Back to top |
|
You must be logged in to rate posts |
|
|
Easy-X |
This post is not being displayed .
|
Easy-X Super Spammer
Joined: 08 Mar 2019 Karma :
|
|
Back to top |
|
You must be logged in to rate posts |
|
|
Easy-X |
This post is not being displayed .
|
Easy-X Super Spammer
Joined: 08 Mar 2019 Karma :
|
Posted: 19:56 - 28 Apr 2019 Post subject: |
|
|
More turd polishing today
Disassembling the CVT seemed to do the trick: the back wheel spins again Almost gave up trying to get the nuts undone but there's something very satisfying hearing that first crack.
Time to start putting it back together:
https://i.imgur.com/0OcTDUY.jpg
Side panels back on:
https://i.imgur.com/4saNeRQ.jpg
The left fitted quite nicely:
https://i.imgur.com/FNbvmii.jpg
But the right need a little "help" so to say:
https://i.imgur.com/ykEsJtn.jpg
Almost all back together!
https://i.imgur.com/1euaaAr.jpg
Front brake still missing so I didn't button up the gauge cluster (plus the front mud guard needs painting and the front forks need attention) but I obviously couldn't resist giving it a little test run.
Started first time, noice Grab my helmet and off we go...
O. M. G. ! ! !
How do ppl live like this?! Okay, so the CVT has seen better days and it still has the original CDI but even so. This has all the feel and joy of the sit down escooter I repaired a few weeks ago
I take it all back about fitting the new carb. I now also have £4 of "racing" CDI to fit. But they'll both have to wait until the front brake is working again. The rear is lack-lustre to say the least. ____________________ Husqvarna Vitpilen 401, Yamaha XSR700, Honda Rebel, Yamaha DT175, Suzuki SV650 (loan) Fazer 600, Keeway Superlight 125, 50cc turd scooter |
|
Back to top |
|
You must be logged in to rate posts |
|
|
Easy-X |
This post is not being displayed .
|
Easy-X Super Spammer
Joined: 08 Mar 2019 Karma :
|
Posted: 14:12 - 04 May 2019 Post subject: |
|
|
Quick progress update: unsurprisingly those front forks won't clean up. First big bump and the seals would be fucked!
But I think I've got lucky and found some second hand ones that would fit for about £20. Worth a punt at that price
So, no more work I can do until next weekend (no point getting the front brake fixed if the forks are coming off.)
(added)
Did turn it over for a bit, just to blow the cobwebs out: still starts first time! Just let it run so I could set the idle at warm.
I can see the appeal of these scooters to kids: very easy to work on. ____________________ Husqvarna Vitpilen 401, Yamaha XSR700, Honda Rebel, Yamaha DT175, Suzuki SV650 (loan) Fazer 600, Keeway Superlight 125, 50cc turd scooter |
|
Back to top |
|
You must be logged in to rate posts |
|
|
Riejufixing |
This post is not being displayed .
|
Riejufixing World Chat Champion
Joined: 24 Jun 2018 Karma :
|
|
Back to top |
|
You must be logged in to rate posts |
|
|
Easy-X |
This post is not being displayed .
|
Easy-X Super Spammer
Joined: 08 Mar 2019 Karma :
|
Posted: 15:21 - 04 May 2019 Post subject: |
|
|
No I did try... on my superlight it looked bad but once gone over with some autosol you could then only see some pitting on the top of the stanchions up close, at a distance they cleaned up fine.
With these not only have great chunks of the chrome gone but the corrosion has started chewing through the steel underneath. They'd need stripping and re-chroming to be usable again. Not really worth it when there are literally piles of mashed up scooters (and the resulting parts listings) all over eBay etc. ____________________ Husqvarna Vitpilen 401, Yamaha XSR700, Honda Rebel, Yamaha DT175, Suzuki SV650 (loan) Fazer 600, Keeway Superlight 125, 50cc turd scooter |
|
Back to top |
|
You must be logged in to rate posts |
|
|
Easy-X |
This post is not being displayed .
|
Easy-X Super Spammer
Joined: 08 Mar 2019 Karma :
|
Posted: 22:32 - 12 May 2019 Post subject: |
|
|
So a nice weekend but I had some work on Saturday so today for the front forks...
So yeah, the old ones are fucked!
https://i.imgur.com/kBzcrbx.jpg
And here are the eBay specials:
https://i.imgur.com/lu459d8.jpg
Under the boots they're clean as a whistle. Also, turns out all the profits for this particular eBay seller go to a kids charity - unexpected bonus! And on the bike:
https://i.imgur.com/j6HHmxW.jpg
Unfortunately the screws holding on the mudguard are too corroded to undo. Even an impact driver wouldn't shift em. Tried drilling the heads of the screws off but before I could blink the plastic just started disintegrating I suppose the metal heating up. Another scan of eBay then.
Went for a quick ride about and the bike now handles as one might expect. I think the old ones were completely seized.
Next up the brake master cylinder. Gave it a good clean out after evicting the spider but it just doesn't seem to want to squirt any brake fluid through. I would imagine all the little rubber seals are knackered. eBay shopping list getting bigger! ____________________ Husqvarna Vitpilen 401, Yamaha XSR700, Honda Rebel, Yamaha DT175, Suzuki SV650 (loan) Fazer 600, Keeway Superlight 125, 50cc turd scooter |
|
Back to top |
|
You must be logged in to rate posts |
|
|
Easy-X |
This post is not being displayed .
|
Easy-X Super Spammer
Joined: 08 Mar 2019 Karma :
|
Posted: 22:07 - 19 May 2019 Post subject: |
|
|
So finished the "turd" this weekend! First up replacing the mudguard that went in the bin with the old forks. Got this for £20 new, gunmetal's a close enough match:
https://i.imgur.com/W3o10IB.jpg
If you can only pay your mechanic in chocolate this is what you get:
https://i.imgur.com/wVpte7A.jpg
As mentioned before, spiders were living in the brake master reservoir. I did try and fix it but gave up in the end and fitted a new one
https://i.imgur.com/PQMgIKf.jpg
The only "problem" being the brake switch connectors but not hard to replace (old one on the left, new on the right)
https://i.imgur.com/U3kJPkl.jpg
Top tip, stick a cable tie around the speedo cable. I'll let you guess how I waste 15 mins...
https://i.imgur.com/hbvYYB6.jpg
I think the rubbers under the seat are shagged:
https://i.imgur.com/DCawRXd.jpg
Couldn't find anything similar enough to fit so I went with sticky-backed draft excluder foam:
https://i.imgur.com/HTHttxZ.jpg
Now all the panels can go back on:
https://i.imgur.com/0OfSaIO.jpg
Damn, battery cover has gone astray somewhere
https://i.imgur.com/9AwwD57.jpg
Okay, so other than that cover, just needs mirrors. Spares bin to the rescue! Ta-da!
https://i.imgur.com/B2Y5ob7.jpg
If you look at those indicator lenses some previous bright spark thought a thin layer of silver paint would look kewl. The indicators still show through but I have a feeling that'd be an MoT fail
Oh well, indicators and battery cover. Almost there ____________________ Husqvarna Vitpilen 401, Yamaha XSR700, Honda Rebel, Yamaha DT175, Suzuki SV650 (loan) Fazer 600, Keeway Superlight 125, 50cc turd scooter |
|
Back to top |
|
You must be logged in to rate posts |
|
|
Sister Sledge |
This post is not being displayed .
|
Sister Sledge World Chat Champion
Joined: 17 Aug 2018 Karma :
|
|
Back to top |
|
You must be logged in to rate posts |
|
|
Easy-X |
This post is not being displayed .
|
Easy-X Super Spammer
Joined: 08 Mar 2019 Karma :
|
|
Back to top |
|
You must be logged in to rate posts |
|
|
Easy-X |
This post is not being displayed .
|
Easy-X Super Spammer
Joined: 08 Mar 2019 Karma :
|
|
Back to top |
|
You must be logged in to rate posts |
|
|
Easy-X |
This post is not being displayed .
|
Easy-X Super Spammer
Joined: 08 Mar 2019 Karma :
|
Posted: 20:58 - 06 Jun 2019 Post subject: |
|
|
Not really surprised it failed the MoT...
Major fault - valve stem rubbers cracked! Is that it?!
Minor fault - headlamp angles, fuel filter weeping. Easy fixes
Other than that it just needs a new rear brake switch and brake fluid topping up.
Bless the guy at Surrey MCs. He reluctantly dragged out the calculator and quoted me to replace the valve stems but then suggested "why don't you save yourself the money and take the wheels off yourself, drop them down to me and I'll only charge you a few quid."
My kinda ppl! ____________________ Husqvarna Vitpilen 401, Yamaha XSR700, Honda Rebel, Yamaha DT175, Suzuki SV650 (loan) Fazer 600, Keeway Superlight 125, 50cc turd scooter |
|
Back to top |
|
You must be logged in to rate posts |
|
|
Riejufixing |
This post is not being displayed .
|
Riejufixing World Chat Champion
Joined: 24 Jun 2018 Karma :
|
|
Back to top |
|
You must be logged in to rate posts |
|
|
Old Thread Alert!
The last post was made 5 years, 11 days ago. Instead of replying here, would creating a new thread be more useful? |
|
|
|