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May 31, 2009 14:51:17 GMT
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** EDIT, thread revived from many years of no updates! Head towards the end of the thread for when it picks up with new pictures and progress!! Direct link to revival here: forum.retro-rides.org/post/2456543/threadOriginal post: After 3 years of stalling, and moving my monkey bike around the garage and not having any space to work on it i finally got my bum into gear and got working. With my garage cleaned, sorted and squared away, i could make some meaninful progress. So, this was the bike as i got my hands on it. (albeit, with the engine removed)    Fuel tank   So, that was the bike as I got it. As far as I know, it has not been started for at least 10 years, but these things are reknowned for being bullet-proof. So a top end strip down/clean/rebuild is in order just to keep it in top nick  |
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May 31, 2009 14:51:52 GMT
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Day 2! After a bit of work, I managed to get the top end stripped down. I was pretty mucky in there, took about 20 minutes of some brushing to get the valves/head/piston cleaned up. Its not perfect, but should be ok (I will be looking to replace the engine at a later date with a 110 or 125) The bore looks superb though    Next up, the corroded wheels were stripped down and the rims were treated to a load of wire wheeling! Both ended up looking something like this...   Not a perfect polished look, but it these are being painted, so no need really. Just a few coats of primer to keep them nice till painting time  The fuel tank was holy, so this needed wire-wheeling to see where the holes are, and where JBweld needs to be appied. (The tank will be petsealed before use proper)    So, now, you can see the many holes!!  Yukky - Should be able to get this repaired hopefully. Managed to get the tank badges off un-hurt also  Thats it up to Last night. I need to get a gasket set for the topend, and some JBwelb to get the tank sorted. I think i will need a new carb, I'm missing some internal parts from the one I have, and don't think i can get a re-build kit  I am not sure on the legality of lights at the moment, I am being assured that lights/speedo/indicators are not requied due to the age. However, it will need a horn. As mine is pre-72, apparently a squeezy horn will do! I don't think thats a route i will go down though  |
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Fungus
Part of things
Posts: 960
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May 31, 2009 15:17:08 GMT
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that looks like a really solid frame you have there! ive always loved monkey bikes. i understand that honda ones are worth alot now. my mate has one of those chinese dirt bikes that use that engine (he got it for a fiver!) and when i rode it i couldnt believe how torqey those little 4-strokes 49cc's are!
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Neil
Posted a lot
Posts: 2,485
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May 31, 2009 15:32:49 GMT
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Nice one! Z50A mini trail. My mate had one with a 125 pit bike engine, hydraulic forks & a disc brake. Pretty twitchy with it being a hardtail!!
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Padz
Part of things
Personal Plates ftw
Posts: 394
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May 31, 2009 18:55:21 GMT
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i love monkeys. have a pic of my old mans unmolested '66 Honda 50  |
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 "I'd rather lie in a bath of my own excrement than own a Vectra " - 2002gimp 25/1/07 "Anal Alert would be an absolutely superb name for piles cream " - Hirst 28/1/08 1991 - Peugeot 205 GTI 1996 - Rover Mini Cooper |
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I love monkeys. have a pic of my old mans unmolested '66 Honda 50 Now that looks to be in great nick!! Ok, I have been working on the fuel tank, and given the wheels a quick blast of black for now. I should probably say that at this point I am just getting the thing back to road-worthy condition so I can get it MOTed and road legal again. Once it is registered then the proper paint job and frame re-spray will be done. (Basically, its easier to get this done whilst the old frame numbers are easily visable) I am considering speaking to a local powder-coat company to see what they can do for the bike at a later date The tank with a bit of filler, needs a few more goes to get it right(I'm a bit new to this filler malarkey!) I think it might work better after a couple of layers of primer?  Liquid metal (Yet to be sanded in this pic)  Forgot to get pics of the wheels, but I will soon enough |
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Jun 11, 2009 13:43:22 GMT
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Did a bit more filler work on the fuel tank. Decided to give it a light coat of primer to protect it. It still needs a couple more skims of filler to get the shape perfect though.  Sanded the wheels down a bit, and gave them another quick blast of black.  Not a perfect finish, and a little run on one side, but happy with it for now. Should look a bit better when the tyres are cleaned up too.  I then decided to try and remove the forks, and the handlebars, as they are a bit ropey, and will need some work. I managed to break the one good handlebar holder i did have.. Oh, and also managed to snap off the mounting bolt for the right hand bar. So, I think new bars are needed too Managed to get them off though, and didnt lose a single bearing!  The frame is almost bare now.  Sorry about the poor pics, it was getting dark! |
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Jun 11, 2009 13:44:01 GMT
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Next - I got the wheels built up...  Re-covered the old wiring loom....  ...  Started to build the bike back up again.. Fitted the ignition, the coil, the forks/headset, wheels/brakes, enginecase (minus head/cyclinder) and did a bbbbit of wiring   Then i mocked it up with some of the newer bits to see how it might look  |
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Jun 11, 2009 13:45:05 GMT
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I was having some issues getting the cam sprocket back on its seat, as the cam chain seemed to be too tight. I tried all manor of things, and then threw a strop and gave up for a couple of days. I posted on a forum, and found out that you have to remove the cam chain tensioner from under the block before you try to re-fit the cam sprocket.. Duhhhhh... With this in mind, the engine went back together perfectly! This allowed me to move on to a few other bits and bobs... It was late, so I was a bit lax with the picture taking... Progress: Engine Fitted/Built up Engine Timed up (i think) Carb fitted Exhaust fitted Seat almost Fitted (one bolt missing, need to locate one) Reat light fitted/connected Loom Almost completed Handlebars fitted Brake Levers fitted Footpegs/stand fitted Coil/Spark plug connected Yet to do: Secure Gear change lever Adjust front brake Fit rear brake cabling/adjust Cover Seat Fill with petrol!  Slighty closer up..  The seat is tatty, but its just to get it through the MOT. |
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Jun 11, 2009 22:37:06 GMT
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IT WORKS!! Took 20 mins of fiddling to get it working, mainly because my choke and ignition was in the wrong position. Pootled about for 5 minutes, it was late, and the brakes were not adjusted properly. Very happy |
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Jun 12, 2009 15:51:26 GMT
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Getting there.
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gasserjay
Part of things
Too bad the people who know it all can't do it all
Posts: 296
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Jun 12, 2009 22:57:48 GMT
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Hi loving the thread Ive got a CT70 Trail Ive had it for about 8 years. In the last month I decided to fix it up a bit it needed a rewire and the forks straightening + seals. It hasn't been running for about 3 years I got it running the same night you did. Pics.    Ive also been busy building a carrier for it and my grill ;D  |
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1970 LTD country squire
1978 VW Westfalia
1988 VW Westfalia
1973 E100 econoline
1973 E200 econoline
1967 VW Sparkafer
1973 VW GT bug
1965 21 window samba
1961 splitscreen double cab
1975 bay single cab
1956 oval baja
1975 Volvo 242
1993 Volvo 945 d24tic
1985 Transit tipper
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Jun 13, 2009 12:16:25 GMT
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you posted about this on monkeyrun forum on delphi didnt you mate...
I post on there all the time under the name slippyricky
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you posted about this on monkeyrun forum on delphi didnt you mate... I post on there all the time under the name slippyricky I did indeed! Thanks for your advice on there Some more updates! (no pics this time though, left my phone in the house) So yesterday I did some more work on the Monkey. Rear and front brakes are now adjusted and work ok enough! This meant I could have a little ride about without fear of driving straight into something with crappy brakes. Very nice to ride, and suprisingly comfy considering it is a hardtail. Perhaps only being 5'8 helps I had to do a bit more work on re-sealing the tank, as it was leaking from a couple of places where i had not sealed it well with the liquid metal. Also, the primer finish was looking grubby after my dirty hands had been over it. So after sorting the holes, i re-primered, and gave it 2 quick coats of the only colour paint I had left lying around (green gloss) Should keep it looking half decent for the MOT, and also gave me some ideas for the final colours! Next I plumbed in the rear light, and managed to snap the kick start when i was about to test it. I almost impailed myself on the spike remaining, seems I don't know my own strength. This put paid to any further tinkering, and I retired for the evening. New kick-start was ordered last night. Ready and raring to go. Still need to find myself some cheap Mud-guards (Presume I need these for the MOT) I do find myself looking around at the headlight buckets, but they seem to be VERY expensive for what they are! So, as it is not needed for the MOT, i figure i can do without for now. |
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  New kick start is on, so I can resume tinkering again now Still trying to find a decent priced headlight/speedo combo at the moment. Oh, and I have confirmed from the engine number that it is a 1970/71 Z50A K2. Which means.... No road tax I am awaiting my age certificate from MBUK, and the DVLA are posting me the forms required to register the bike. So I should be all sorted in a couple of weeks, fingers crossed! I might even put it in for the MOT next week. *edit*Oh, and the now Duck taped seat is very comfy |
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Potter
Part of things
'E who dares wins,eh Rodders??!
Posts: 304
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Jun 26, 2009 20:36:15 GMT
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Love it!!
Can you really regioster that on the road? Something like that would be super cool to buzz me to the other garage and back ;D
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More cars than sense or money!🙄
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You can indeed! Also, as mine is pre-72, i get freeee road tax I have the V55/5 form from the DVLA here on my desk as I type this. Need to get it filled out, and sent off. Then hopefully, i will get my freeeee tax disc |
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yeah thats a smart bit of engineering.. if that sort of thing rocks your boat then might I suggest you doa google on alan millyard he's built some serious bits of kit in his time
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Looks neat! How much power would it make?
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