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Messages - L.A.B.

Pages: [1] 2 3 ... 112
1
British Bikes / Re: T140 rear wheel, binding when tighten spindle
« on: November 14, 2024, 10:36:09 AM »
One note about the 37-7021 washer is that it was not fitted to the very early rear disc model as I believe the raised section was originally part of the caliper bracket (which is missing from your picture) so what year T140 is it?

The chain adjuster also looks like the wrong type and the end plate is missing. If the LH chain adjuster has a spacer attached to it then it's the wrong type.
https://www.thebonnevilleshop.com/product/triumph-650-t120-750-t140-bonneville-tr7-tiger-wheel-adjuster-set-pn-37-3742-1/

https://www.feked.com/triumph-t140-chain-adjuster-plate-83-3082.html

2
British Bikes / Re: T140 rear wheel, binding when tighten spindle
« on: November 14, 2024, 09:19:11 AM »
Like this.
https://www.thunderbirdspares.com/speedo-drive-norton--bsa-bg5330171-1512-ratio-uk-made-1116-hole-1057-p.asp

3
British Bikes / Re: T140 rear wheel, binding when tighten spindle
« on: November 14, 2024, 08:52:15 AM »
The fact that the speedo drive face should be flat.

4
British Bikes / Re: T140 rear wheel, binding when tighten spindle
« on: November 14, 2024, 08:44:46 AM »
Not only is the face of the speedo drive seriously distorted (it should be flat) but the 37-7021 washer (below) is also missing.






5
British Bikes / Re: T140 rear wheel, binding when tighten spindle
« on: November 08, 2024, 11:51:30 AM »
The early type with the Smiths speedo drive can bind on the wheel.
I'm assuming it's a spoked wheel.

Make sure you have the correct RH spacer.
 https://www.feked.com/triumph-rear-hub-right-hand-wheel-bearing-spacer-t140-tr7-models-circa-1976-79.html

6
Japanese Bikes / Re: Registering a bike as a classic
« on: August 20, 2023, 10:45:25 AM »
Quote from: hawkeyefxr on August 04, 2023, 07:30:07 PM
I have got to the bottom of it.
Yes the bike has to be 40 years old but it can't be classified as a classic until the first January after the bikes 40th birthday. In my case the bike will 40 years and 4 month old.

You have to wait until April to register it as Historic tax class.

https://www.hagerty.co.uk/articles/maintenance-and-gear/how-to-apply-for-road-tax-and-mot-exemption-for-a-historic-classic-car/

"Road Tax exemption
Unlike the MOT exemption, getting an exemption from paying road tax doesn’t happen straight after your vehicle turns 40. Instead, you have to wait for the first day of April, and then as long as your car was registered 40 years before the first of January you can apply for road tax exemption from April."

https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/1163655/inf34-taxing-historic-vehicles.pdf

Quote from: hawkeyefxr on August 04, 2023, 07:30:07 PM
It can't be done online but just take you insurance, log book, pictures to show that it. has not been drastically altered to the Post Office and they do it there and then.

Proof of insurance is now only required in Northen Ireland. You will however need to fill out form V112 unless you continue to have the vehicle MOT'd.

"This requires a change to the V5 registration document, so you will need to take the V5 and proof of MOT or exemption (the V112 form) along to a Post Office and request the vehicle class to be changed [.........] to Historic. In Northern Ireland you will also need to present proof of insurance to make the change."

And you shouldn't need to show photos as PO counter staff aren't going to know what they are looking at, plus some changes may not be visible in pictures.

I've done this three times and never needed to show any pictures.
 

7
British Bikes / Re: Carb leak
« on: August 10, 2022, 12:00:24 AM »
Are they original hollow 'white' (or brownish) plastic floats or the later black and metal StayUp type?

Have you fitted the later 'waterproof' extended ticklers?
https://www.classicbritishspares.com/products/amal-concentric-long-extended-tickler-conversion-kit-622-172-triumph-bsa-norton

If the hollow plastic floats, shake them or hold them up to the light to check fuel hasn't got inside. 
If the StayUp type then check the float needle slot for rough edges and if there are then carefully file or sand them off.
Polishing the float pins if they aren't new could help to stop them from sticking also check the floats aren't catching on the float bowl gasket in the area shown below if so then trim the gaskets but only the minimum amount necessary for them to clear the float.




 
 

8
British Bikes / Re: Triumph front wheel offset
« on: July 31, 2022, 08:33:11 PM »
Quote from: Epreon on July 31, 2022, 06:06:02 PM


Having fitted the forks I find that the clearance between the wheel and forks differs by an average of 3.2mm between the left and right hand fork sides.

As it differs by around 3.2mm then the rim is offset approximately 1.6mm which is near enough but as you built the wheel then why not move the rim 1.6mm or as near as you can get it?

9
British Bikes / Re: 1973 Bonneville carb adjustment?
« on: July 24, 2022, 05:57:42 PM »

Sounds like a blocked pilot jet (pilot bush).
https://amalcarb.co.uk/rebuilding-mark-1-concentric-carburetter
"Pilot Circuit"

https://www.ntnoa.org/pdf/Bushmans%20Carb%20Tuning%20Secrets.pdf

If so then you need to make a 0.016" (drill bit/guitar string) tool to carefully clean it.



10
British Bikes / Re: T 100 68 carb/starting problem
« on: November 30, 2021, 10:19:29 AM »
Quote from: dynamic on November 30, 2021, 10:00:20 AM
I think maybe just a small amount of debris was restricting the airways even though this is a new carb

It's not unknown for a new carb to still have some debris in it, however, modern fuel also blocks the pilot bush if the bike isn't started for a couple of weeks when fuel has been left in the carbs so I occasionally have to clear a pilot bush (see Bushman's link, below).

http://www.bmoc.ca/Tech%20Info/Bushmans%20Carb%20Tuning%20Update%202015.pdf
 

11
British Bikes / Re: T 100 68 carb/starting problem
« on: November 29, 2021, 09:33:46 PM »
Quote from: Rex on November 29, 2021, 09:24:48 PM
I was being ironic, hence the  ;)

Glad you said so as it made no sense to me, ironic or otherwise.

12
British Bikes / Re: T 100 68 carb/starting problem
« on: November 29, 2021, 06:13:25 PM »
Quote from: Rex on November 29, 2021, 05:45:10 PM
Should be below the main jet ;) and normally a 106.

The needle jet is above the main jet.

13
British Bikes / Re: T 100 68 carb/starting problem
« on: November 28, 2021, 04:41:36 PM »
Quote from: dynamic on November 28, 2021, 04:32:31 PM
my carb has  an actual pilot jet came with the 108 size purchased from a store I have used for many years with no problems

The 626/300 (non-Premier Mk1) has a pilot bush, therefore, does not require a screw-in pilot jet?

http://amalcarb.co.uk/rh-26mm-4-stroke-mk-i-carburettor.html
"
Details for RH 26mm 4 Stroke MK I Carburettor

This carburettor is built to a standard specification which provides approximate settings for this bore size and carburettor type. Ideal for anyone who wants to tune their machine themselves.

Comes fitted as standard with:

3 Cutaway Slide

160 Main Jet

106 Needle Jet

Pilot Bush
"
http://amalcarb.co.uk/rebuilding-mark-1-concentric-carburetter
 "
Pilot Circuit

Mark 1 Concentrics are equipped with two types of pilot jets. '2 Strokes' use a removable pilot jet which should be replaced if it is damaged or shows signs of oxidisation. '4 Strokes' generally use a pressed in bush pilot jet in the gallery behind the pilot air screw.
"


14
British Bikes / Re: T 100 68 carb/starting problem
« on: November 28, 2021, 11:16:32 AM »
A 626/300 (non-Premier) has the standard fixed pilot bush.
http://amalcarb.co.uk/rh-26mm-4-stroke-mk-i-carburettor.html

Do you mean 108 needle jet? The original '68 T100(C?) carb (626/8?) and generic 626/300 would have a 106 needle jet? 

15
British Bikes / Re: Stud Thread size
« on: October 09, 2021, 04:09:18 PM »
Points assembly pillar bolts are usually 2BA but I can't find a part number for them so what is the diameter and TPI?

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