Recent Posts

71

A7 & A10 Engine / Re: Exhausts

« Last post by CheeserBeezer on 17.12. 2024 22:44 »

Yes, always Armours. The only issue I've had with the Siamese system is the exhuast pipe on the LHS (kerbisde in the UK) doesn't go into the head at quite the right angle so it is difficult to get the cooling ring to fit flush against the head. Others seem to have had the same experience.

72

A7 & A10 Engine / Re: Exhausts

« Last post by limeyrob on 17.12. 2024 22:25 »

I have an Armours exhaust on my Matchless, very solid and well made.  Have you seen where they are? Down an alley in Bournemouth behind a Kebab shop and a dance wear shop .

73

A7 & A10 Engine / Re: Exhausts

« Last post by Rex on 17.12. 2024 22:06 »

+1 for Armours. I have them too.

74

A7 & A10 Engine / Re: Exhausts

« Last post by fringedweller on 17.12. 2024 21:52 »

After a lot of Google research  , I settled on a Armours siamese system to fit a '54 RR new build.  From what I can gather ,they use thicker wall pipe and are triple plated. Price was OK in comparison to what is available in Australia , freight was a killer though.
 Anyway I bit the bullet and ordered them, arrived about 10 days later packed well and looked fantastic. The RR is still on the bench so I fitted them to my '60 Super Rocket for a trial run. Fitted straight on, no fettling required, secured the header pipes in the head with some silicone type sealant and fired it up. A little louder than my twin stock pipes but a deeper sound.
 Since then have racked up about 400 klm of spirited riding (70 mph cruising) following a few "moderns"with no issues of headers moving in the head, chrome is just starting to yellow at the pipe junction.
 So very happy with them. Hope that helps.
Don

75

A7 & A10 Engine / Re: Exhausts

« Last post by limeyrob on 17.12. 2024 20:33 »

Mine has one but its ancient so I don't know who made it.  What I will say is that with 2:1 pipes they not only need to fit but stay fitted. The short drive side section has a tendency to blow out on some designs so take a close look at what holds that in place.

76

A7 & A10 Engine / Exhausts

« Last post by raindodger on 17.12. 2024 19:15 »

Can any of you fine gentlemen recommend a supplier of a siamese exhaust system for my A10 that will actually fit?
I'm fitting a sidecar, so access will be limited.

Regards.
Tim.

77

Gearbox, Clutch, Primary / Re: Difference between plunger and swing arm layshaft

« Last post by Swarfcut on 17.12. 2024 09:38 »

 I can also add that if you are careful positioning the pressed on layshaft pinion then the circlip can be left off, and just the layshaft swapped, leaving the original gears to run in their original position.

 That pinion can be difficult to change without a fair amount of force, (use a press rather than the big hammer and steel tube of the backyard maestro,) the circlip just serves to locate the pinion in a production setting. The layshaft endfloat depends on the pinion final position on the layshaft. There is an oilway drilling in both layshaft and pinion, try to get the two to line up. Pinion ends up a few thou proud of the layshaft splines, pinion face, not layshaft, bears against blind bush flange.

 Swarfy.

78

Amal, Carburation / Re: rich on one side

« Last post by Macbeth on 17.12. 2024 00:15 »

Hi Macbeth,
The plunger rubber seals always look like that as they seat on a narrow edge.
I have a single 30mm Mikuni on my SR. It has been on the bike since I rebuilt it back in 2001/2
I am very happy with it, I have fitted Mik's on a few other bikes as well, All Good

John

Tks John. From wanderings online I did start to think that yet for $10 I’m putting a new one in before I go further hoping it is some weird thing going on with the spring & I’ll check the sleeve it moves in

79

Amal, Carburation / Re: rich on one side

« Last post by Macbeth on 16.12. 2024 22:36 »

G'day Mac.
Same as the enricher (choke) on my Keihins on the Cafe. I got rid of the buttons and put cables on. Make sure there is slack in the cables when their in the off position.
Cheers

Ta mate. I’ve just got the button enricheners on small flat slides. Whilst it appears to operate ok..god knows how the spring is really operating inside once it’s screwed back in. So I’ve got a new one ordered.

Sensible thing to do is swap them over but I can’t guarantee the condition of the other so I’m going to see how the new left side replacement goes before I go further & pull both carbs off & get them up into the kitchen with full kits & start at the beginning

All operating fine before sitting for 12mths getting this engine built. God knows when the fuel gremlins attack or a seat on the enricher decides to stick / gives bad seat

It was running very well over 1 hr rides prior to build so I’m assuming jetting was accurate- they were not changed hence I’ll start at a dodgy enrichener 👍

80

Amal, Carburation / Re: rich on one side

« Last post by chaterlea25 on 16.12. 2024 21:40 »

Hi Macbeth,
The plunger rubber seals always look like that as they seat on a narrow edge.
I have a single 30mm Mikuni on my SR. It has been on the bike since I rebuilt it back in 2001/2
I am very happy with it, I have fitted Mik's on a few other bikes as well, All Good

John