2stroke4stroke

Whilst a good carb clean won't do any harm I have known the perforated tube in a silencer to either fracture or come loose such that it falls down and no longer link the two ends of the silencer, causing an obstruction.

I am very pleased to see that you have not lost your oft demonsrated capacity for intelligent, reasoned, discussion.

It certainly looks like a Miller frame that someone has added a bracing piece to between the front downtubes.

Assuming you are in the UK, or even if not, there are two Googleable places that do this - phone them and get a precise figure? If it's the source coils then I think that is about £90. One place is in the south west and the other sounds as if it should be in Yorkshire (I'm not sure of the rules on here for naming businesses).

Well Nigel, every trial I go to locally there is someone else with a new 4RT. I have seen two new Betas this year (which is the make I would have expected to see as the best seller), heard of two new Scorpas and seen one new Sherco. Dealer reported figures are well beyond anything I can see at trials for other marques. They're not cheap so something must be attractive about them. Could it just be the Central Belt of Scotland?

Why change what currently seems to be by some margin the top selling trials bike on the UK market?

In the case of a four speed motor being used, probably none.

I think there's a couple of those about in Japan. As far as I am aware it's a factory special based on the long since out of production Scorpa. No doubt there's loads of lighter parts on it but the gearbox/primary drive at least must be totally different to judge from the size of the rear sprocket.

They certainly sounded crisp enough at the Scottish.

Inevitably we use more force than necessary when shutting off (typically when making a hard front wheel landing)and the plastic drum gets forced beyond the plastic stop, rounding the corners such that it then keeps happening. I have been trying to think of a way to reinforce the contact point but have not yet succeeded. Heffergm's links don't lead to anything now.

When the downtubes crack at the end of the steering head gusset you'll know that it's definitely a Miller frame?

I imagine a few felt considerably older come Saturday afternoon than they had on Monday morning☺ I too would guess at Nigel in the absence this year of Volta Klecka. I think Walter Luft was late Sixties or perhaps Seventy when he last rode.

You presumably have a revcounter that you use occasionally so you know the sound of the figures you quote. Do you know where they can be obtained? You've been hard done by - a pal had to change the plug in his TLR 250 last weekend and complained it had only lasted 18 years☺

A great lunchtime read to set the mood just before I step in to the car to head for the Fort.

If I recall correctly timing is set at 1.8mm BTDC. There is no adjustable backplate, with adjustment being carried out purely by altering the points gap. Sorry I can't recall the max and min permitted gaps.

If you are going to do anything at an event you need coolant anyway - I always had a length of tubing on the bottle in the toolbox when I was riding the Rev 3. No great problem.

Surely if you were going to the effort of doing all that you would do it such that the caliper would last more than five minutes in rocky going?

Having just looked at the Standing Regs and Sporting Code it seems you are correct Stuart. The only reference I can see is that motocross footrest ends have to be rounded. However, I'm old enough to remember when the rule came in and would find it somewhat bizarre if such an obvious injury prevention measure had been withdrawn. Can anyone with ACU connections comment further?

The pegs are short because you didn't want solid pegs catching on the rocks. Don't know about your rules but in the UK you would have to fit folding pegs in order to compete nowadays.

Could you not just buy a small magnet, attach a lanyard somehow to one side and use the relevant pole?

Drill two holes and use self tappers to pull it out once exposed by primary drive removal.

As I recently found, 1800 rpm sounds slower to the ear than you might think it would. Mine was at 2200 when I finally got a revcounter to it.

Given that Guy is cycling there from home he might be a bit puggled and not performing at his true potential so have hope. Though years ago the late Bunny Ward managed the Six Days after cycling from the Midlands for charity.

I don't think making the bike road legal will help your position if you get caught by the wrong authority riding on the old railway line.

My comment on the tyres was more an ironic one on the ridiculous price of the seat than the likely tyre wear. "Nobody will hear me on the Montesa". It is a 4RT isn't? You'll be lucky.