Search found 884 matches

by Richard Negus
Sat Jun 09, 2018 12:43 pm
Forum: general discussion (eveything else)
Topic: Chassis number location
Replies: 2
Views: 46

Re: Chassis number location

Hi Blair, Turn the bars to the left and look at the r/h side of the headstock. There is, or should be, an anodised aluminium VIN plate held on by four dome-head rivets and, as David says, that is stamped with the engine/chassis number '4XXX' and the date of manufacture. The engine number is stamped ...
by Richard Negus
Sat Jun 09, 2018 8:33 am
Forum: technical interest and new ideas
Topic: speedo cable for a motometer Speedo and a veglia head
Replies: 16
Views: 199

Re: speedo cable for a motometer Speedo and a veglia head

I've found that Yamaha cables have the same thread at each end and the square on the inner cable matches too. An industry standard perhaps?
I probably used the Commander cable, Yamaha part 2GH.83550.00, which was originally that from a 1987 FZR1000.
R.
by Richard Negus
Fri Jun 08, 2018 8:31 am
Forum: general discussion (eveything else)
Topic: Clemens Bubner?
Replies: 2
Views: 71

Re: Clemens Bubner?

Thanks folks - job done!
R.
by Richard Negus
Wed Jun 06, 2018 8:24 pm
Forum: general discussion (eveything else)
Topic: Clemens Bubner?
Replies: 2
Views: 71

Clemens Bubner?

Anyone know how to get in touch with him?
I'd like to introduce him to a fellow German who is looking for help with his rotary.
R.
by Richard Negus
Thu May 31, 2018 8:18 pm
Forum: technical interest and new ideas
Topic: Bad Manners
Replies: 7
Views: 151

Re: Bad Manners

JB's solution, clothes pegs, works very well; I used a short length of rubber petrol pipe, slotted along its length to fit over the stem of the choke knob. When I lost that, I just bent the stem slightly to create a bit more friction. Another solution is to 'ride it like you stole it' for the first ...
by Richard Negus
Tue May 22, 2018 1:45 pm
Forum: technical interest and new ideas
Topic: Ignition Timing
Replies: 24
Views: 585

Re: Ignition Timing

I'm struggling to remember what Mark's bike looks like and why it has two brown wires to the fan switch, and the single blue output to the fan. But, in the standard set-up, the fan has a dedicated fuse with an orange wire from it to the fan switch and then another orange wire from the switch to the ...
by Richard Negus
Fri May 18, 2018 2:30 pm
Forum: technical interest and new ideas
Topic: Ignition Timing
Replies: 24
Views: 585

Re: Ignition Timing

Brown wires to the switch, as in Mark's photo, are power in to the switch Blue wires is power out to the fan. At the fan connection, you'll find a black wire which is ground for the fan motor. If memory is correct, the standard production loom had orange wires at the fan switch; could be wrong thoug...
by Richard Negus
Thu May 17, 2018 6:32 pm
Forum: technical interest and new ideas
Topic: Ignition Timing
Replies: 24
Views: 585

Re: Ignition Timing

"A picture's worth a thousand words"

Well done.
by Richard Negus
Wed May 16, 2018 9:52 am
Forum: technical interest and new ideas
Topic: Ignition Timing
Replies: 24
Views: 585

Re: Ignition Timing

John, I haven't got a better photo to show you where things are in that area. .the fan switch is the big brass lump with a 22mm hexagon and two blade terminals .alongside that is either the thermistor or the temperature switch, fixed to the engine by two small screws. ..the thermistor is an aluminiu...
by Richard Negus
Fri May 11, 2018 8:26 am
Forum: technical interest and new ideas
Topic: Ignition Timing
Replies: 24
Views: 585

Re: Ignition Timing

John, Take care with cheap seal kits! I think it was on another thread that I mentioned a manufacturing fault with a pattern, ie branded Tourmax, seal kit. The piston secondary seal, which should stop fluid escaping from the reservoir when the lever is pulled, doesn't fit tightly on the piston and c...
by Richard Negus
Wed May 09, 2018 8:54 am
Forum: technical interest and new ideas
Topic: Ignition Timing
Replies: 24
Views: 585

Re: Ignition Timing

John, Julian developed and makes the TT1 boxes. Compared to the Boyer, they're modern technology with a re-programmable chip so you could, if required, have one with a different rev limit or different retard curve. This is the thermistor:- 4002-03-2.jpg A temperature switch fits in exactly the same ...
by Richard Negus
Tue May 08, 2018 10:05 am
Forum: technical interest and new ideas
Topic: Ignition Timing
Replies: 24
Views: 585

Re: Ignition Timing

Tony, I forgot to mention a significant difference between Boyer and TT1 boxes. With the switch/thermistor connected and a hot engine, the Boyer is at full retard at cranking speed which makes re-starting difficult sometimes. The TT1 was designed such that, under the same starting conditions, it giv...
by Richard Negus
Tue May 08, 2018 8:54 am
Forum: technical interest and new ideas
Topic: Ignition Timing
Replies: 24
Views: 585

Re: Ignition Timing

Hi Both, Boyer and TT1 ignitions have a built-in retard curve dependent only on engine speed. Above about 2000 rpm they run at full advance until the rev limiter is reached. At that point a huge retard effectively causes a bad misfire at about 9,000 rpm. Below 2000 rpm, the ignition gradually retard...
by Richard Negus
Thu Apr 26, 2018 11:07 pm
Forum: for sale and wanted
Topic: H J Pugh on-line auction
Replies: 1
Views: 158

H J Pugh on-line auction

I see there's what appears to be a complete, new, gearbox assembly for a W2000.
Lot 160 if anyone is interested.
by Richard Negus
Thu Apr 26, 2018 12:45 pm
Forum: technical interest and new ideas
Topic: Oily rear wheel
Replies: 36
Views: 1054

Re: Oily rear wheel

Morning John!
Now there's a coincidence, another Whale #60. Very Happy

Whale #60.jpg


These must be 30 years old - I wonder if they're still made.
by Richard Negus
Wed Apr 25, 2018 8:44 am
Forum: technical interest and new ideas
Topic: Master Cylinder Piston Rubbers
Replies: 5
Views: 188

Re: Master Cylinder Piston Rubbers

JB,
I've just done one.
The seals look similar but are not the same. The primary seal has small slots moulded into the diameter.

2018-04-25 082400.jpg
by Richard Negus
Sun Apr 22, 2018 11:02 pm
Forum: technical interest and new ideas
Topic: Master Cylinder
Replies: 5
Views: 193

Re: Master Cylinder

JB, It's a Yamaha part fitted to various models of 1988'ish era, including FZ750, FXR1000, etc.. Kits are available on Ebay, but beware of the 'Tourmax' branded ones as the secondary rubber seal is not correct and could pose a hazard. The genuine item has Yamaha part number 36Y.W0041.00, is usually ...
by Richard Negus
Wed Apr 11, 2018 1:23 pm
Forum: technical interest and new ideas
Topic: Oily rear wheel
Replies: 36
Views: 1054

Re: Oily rear wheel

You can take out the complete gear set, including the sleeve gear, without removing the sprocket. You do, however, need to remove the oil pump and the sprocket cover plate. Depending on your machine's age and mod history, you may then find a bug nut holding the sprocket to the sleeve gear or a circl...
by Richard Negus
Wed Apr 11, 2018 11:25 am
Forum: technical interest and new ideas
Topic: Rad Caps
Replies: 5
Views: 246

Re: Rad Caps

I don't think it's too critical. The Commander yellow plastic cap is 1.1 bar, the F1 original metal is stamped 1.0 bar. The higher the pressure, the higher the temperature at which the system will boil - and the more likely it is to be incontinent. Your boiling problem might be that the cap isn't ac...
by Richard Negus
Wed Apr 11, 2018 11:02 am
Forum: technical interest and new ideas
Topic: Oily rear wheel
Replies: 36
Views: 1054

Re: Oily rear wheel

BlackIP2 wrote:I know the engine has been worked on recently and the chain must have been split - not by me though.
...


If it is the engine that has been worked on, it is usual to separate it from the gearbox, leaving that in the chassis with no need to disturb the rear drive.

4252-25.jpg


4032-43.jpg
by Richard Negus
Tue Apr 10, 2018 11:38 pm
Forum: technical interest and new ideas
Topic: Oily rear wheel
Replies: 36
Views: 1054

Re: Oily rear wheel

That other bit of debris I found in the chain gaiter is a very thin metallic piece with some writing on it. It was bent in half when I dug it out and I straightened it out just to see what it was: Chain debris.jpg . Ho Hum! That bit of debris is the bit of tin that old-time mechanics wrapped around...
by Richard Negus
Tue Apr 10, 2018 6:20 pm
Forum: technical interest and new ideas
Topic: Oily rear wheel
Replies: 36
Views: 1054

Re: Oily rear wheel

Next stop, Andover, but try as I might, I could not find a suitable link and the Classic parts book lists the chain (112 links) but no split link or rivet link so I didn't have a part number. ) I've just tried again using Richard's part number, In their part numbering files, AN use a dot in stead o...
by Richard Negus
Tue Apr 10, 2018 4:03 pm
Forum: technical interest and new ideas
Topic: Oily rear wheel
Replies: 36
Views: 1054

Re: Oily rear wheel

When all else fails, try Andover! Part number 55.1428/REN appears (!) to be a stock item. There are rivet links to fit other chain brands too. Some bikes originally had DID - use 55.1428/ES50 for those. For the F1, use 55.1428/530MVX. Do you have a better photo of the other bit you found? After the ...
by Richard Negus
Sun Apr 08, 2018 8:06 pm
Forum: technical interest and new ideas
Topic: Oily rear wheel
Replies: 36
Views: 1054

Just a thought

Clean oil, you say? First thought - a leaking Koni damper. Second thought, horror of horrors - a leaking oil tank. Do you use mineral oil or Silkolene? A rusted tank section usually drips on the floor. I think I mentioned earlier that with oil in the rear drive, the chain won't attack the gaiters. B...
by Richard Negus
Sun Apr 08, 2018 7:59 pm
Forum: technical interest and new ideas
Topic: Oily rear wheel
Replies: 36
Views: 1054

Re: Oily rear wheel

I think you must be clairvoyant Not really - it's like the car salesman said to me in 1979 when I complained about the whiny noise from the transmission of my six-month old SAAB "Yes Sir, they all do that". Three months later, whine became crunch and it needed a replacement gearbox, under...
by Richard Negus
Sun Apr 08, 2018 6:07 pm
Forum: technical interest and new ideas
Topic: Oily rear wheel
Replies: 36
Views: 1054

Re: Oily rear wheel

Quick - buy a lottery ticket! You're a lucky boy today. The secret to riveting the chain is a hot air gun to heat the front convolutions of the gaiter and push the gaiter forward inside itself. That gives you enough space at the rear to fix the chain and still have room for the riveting tool. The sp...
by Richard Negus
Sat Apr 07, 2018 8:51 am
Forum: technical interest and new ideas
Topic: Oily rear wheel
Replies: 36
Views: 1054

Re: Oily rear wheel

If the oil is dripping on the wheel side of the sprocket cover, then it's the big seal that's failed. Anywhere else and it will be the lower chain gaiter, probably at the convolutions at the rear end of it. Short term fix is to wash the area thoroughly to remove all signs of oil and then bandage it ...
by Richard Negus
Mon Apr 02, 2018 10:22 am
Forum: technical interest and new ideas
Topic: Thermocouples
Replies: 12
Views: 486

Re: Thermocouples

[quote="Mick Taylor"]I take it the solder 'snot' should not touch the sleeve bolt?...... That poses interesting questions. Yes, the 'snot' is clamped to the housing by the sleeve bolt, but surely if either of the bare wires touch and is grounded, it wouldn't work? Does the sleeve bolt real...
by Richard Negus
Mon Apr 02, 2018 9:05 am
Forum: technical interest and new ideas
Topic: Thermocouples
Replies: 12
Views: 486

Re: Thermocouples

My photos of your engine from 2012 (!) clearly show that your thermocouple is in the standard, left, position. I like the look of the bolts you found - just wondering where I could use them. Just a blob of silver solder, without setting fire to the plastic insulation, and then pull the softened insu...
by Richard Negus
Sun Apr 01, 2018 10:51 pm
Forum: technical interest and new ideas
Topic: Thermocouples
Replies: 12
Views: 486

Re: Thermocouples

Sorry to say this - but if your thermocouple is now in the right housing, it suggests that there's already a broken one in the left cry .

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