Yamaha CS5

[Bryanj]

Thats a typical us headlamp, they like sealed beams for some reason

[Laverda Dave]

Steve Cooper of the VJMC recently wrote a feature in Classic Bike Guide detailing how to convert US sealed beam unit to one with a lamp holder. It was about 4 or 5 issues ago. Unfortunately I now have to throw my bike mags away after I read them to avoid 'clutter'.

[Johnwebley]

Steve Cooper of the VJMC recently wrote a feature in Classic Bike Guide detailing how to convert US sealed beam unit to one with a lamp holder. It was about 4 or 5 issues ago. Unfortunately I now have to throw my bike mags away after I read them to avoid 'clutter'.

Thanks

Will check on the interweb

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[Johnwebley]

ok
back from holidays,so to work,

fitted new MB9U battery,

  all the electrics work,lights,indicators,starter,

at present the rear indicators have red lenses,are they legal in the UK ??

replacing various missing blots,

 next job,do I need to strip the carbs,and check and clean,I have removed the slides ,and looking inside it looks immaculate,


more news soon,as it gets warmer

[Bryanj]

Well the first morris minor with indicators not trafficators flashed the stop bulb so i guess it must be legal

[Johnwebley]

While it is chilly,and windy I am sitting and planning ahead,

The tank has rust inside,

Looks intact, but I would like to remove/neutralise it, any advice for   doing that?

Next I have ordered a wheel  rim,so  into the unknown, having a go at wheel building, all the spokes and nipples have been loosened and  checked, will be stripping the brakes and overhauling lubricating the cams etc,

Advice welcome

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[Bryanj]

John, go to tricks and tips page 4 and look at wheel building the easy way mate, i wrote it years ago. Yours may only have 36 not 40 spokes but method is same.

I bought Julies wheel building jig so if you dont mind the travel cost you can borrow that but note i am away from about 10th April till 8th May

[Johnwebley]

Got the Yam running

Sounds sweet,

The LH will need stripping and cleaning, I think the slow running jet is blocked

Runs great with choke, but not otherwise

Loads of blue smoke

Smells wonderful

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[Skoti]

John,

well done indeed, mind you that wee Yamaha will give your CB200 a run for it's money.

Thanks for posting the photos.

[Laverda Dave]

Nice work John. I can't remember when I last saw a 2-stroke in London. The smell of a stroker running on synthetic racing oil was always great, just like a speedway bike on Castor oil.

[Johnwebley]

ta all

   it seems like the mileage is  correct,

  appart from a bodged footrest mounting,everything seems ok,

 the LH side of the bike seems to be corroded more on the left,but I have been using BDX and  so far everything has come lose.

  now the down side,I can't find much info,about the CS3 or CS5,while the motor was running,,the charge light didn't go out,

 as it uses a combined dynamo and starter,,I am trying to find the details,ohms etc,to try and sort the issue,


  anyone have any knowledge,or links??


  thanks

[Skoti]

Looks like possibly the original Japanese Inoue tyres that I seem to remember were were fitted from new back then.

Not that they'll be of much use after all that time, but nevertheless it helps confirm the mileage is true.

 
Edit
Just noticed from your earlier post they are actually similar treaded Yokohama tyres.

 


Maybe look for a Haynes workshop manual, similar to a 1973 UK spec RD200.
 

[Johnwebley]

Thanks for your support

I have the Haynes

Covers CS3, CS5 And RD200

unfortunately, it claims the starter/generator is so complex

Take it to your local Yamaha dealer

LOL

but I have found a Yamaha CS5 manual, needs a lot of reading, but should help

Fingers crossed

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[Bryanj]

The charging system is more like an old dynamo car john with brushes on a commutator if i remember correctly and a regulator box, with standing the brushes could be stuck or dirty or the reg stuck, never took one apart so i dont know if it is mechanical or electronic.
If it is like the RD 200 you need a "special" tool to hold the advance mechanism open whilst setting the timing with dti down plug hole, i will tell you how on Thursday mate

[Johnwebley]

Cheers

They claim to use matchsticks



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