openspaceman

An old thread but I have a problem with my HL75, it's old but not a lot of work and on the original blades. Problem is it has sat with aspen in it for 2 years and now I cannot start it. I suspect an electrical fault but just a question about the carb; it has never had the mixture screws altered from factory setting, indeed I don't have a tool to alter them. It fires up once from cold every time with the choke and then never fires again. I have stripped the carb and nothing visible (I was half expecting to find a little globule of water somewhere). I'm a bit loathe to undo the mixture screws and flush the jets out with carb cleaner so can they be altered to just take a screwdriver? Is there anything else different about the Zama carb, I'm assuming the check valves diiscussed earlier in the thread are just in the purge bulb part of the carb? In the meanwhile I'll buy a new plug and research a replacement coil and work off a ladder 😞

Are any of these small forwarders operating in the mid Hampshire region?

I don't know if things have changed much since broadband appeared but as long as its Plain Old Telephone Service, two copper wires used out of seven, then the line was often held to the house by a wrap guy lashing then the non tensioned dropper either joined the house wire via "jellies" like a scotch block filled with insulating jelly of else went straight to a terminal block in the master socket. It was easy enough to disconnect the two wires as long as you noted their colours and which terminal they went to and then unwrap the lashing and drop the wire.

Is it in UK? It looks like a juvenile foliage sport of Lawson's cypress

Good story and lovely bike, a Metisse was my desire in the 60s. Nearest I've got to that era so far is a Lewis Leathers quilted jacket. I don't think I could manage a kickstart now but how I'd love a 5 gallon tank. So the production featherbed only differed from the Manx Norton in the gauge of the tubes? My understanding about tritons is that the Norton factory would not sell the manx 500 overhead cam engine and it was sought after for one of the car formula classes. So the big money bought Manx Nortons complete and took the engines out. In the meanwhile the Turner designed 360 twin ( horrible for vibration in the T100ss I rode) bounced a bit in the Triumph frame because of the single front down tube. So the inferior but much cheaper engine got fitted to the redundant featherbed frames. Later tritons presumably used cooking norton frames .

Octane rating is to do with how the fuel resists premature auto ignition, this can cause damage as a flame front moving through all the mixture from the spark is smoother than simultaneous detonation . Higher octane fuels tend to have slightly less calories but this can be made up for by using a higher compression ratio. The pressure from which the gases expand tends to be a direct correlation with thermodynamic efficiency. Engine designers have worked well to increase overall efficiency and manage high compression ratios as petrol octane rating decreased with the removal of tetra ethyl lead.

Internal combustion engines are heat engines, they convert heat into motion. Ethanol produces less heat as it burns, because it is already partially oxygenated. So you need more ethanol delivered into the engine than you would petrol for the same performance. If ethanol content is 10% and it has 70% of the calories then it would be 3% worse by weight, not sure what that is by volume. Anything worse will be to do with changes in engine optimisation of fuel.

Yes but it's wide band oxygen sensors that are used to feedback flue gas conditions and they operate by generating a voltage difference between the flue side and ambient air. Also a crude wire with a current running through it coupled with a temperature sensor can distinguish differing exhaust gas content in much the same way an air mass flow device works in a car.

Are all modern apples grafted? Russets seem to stay on the tree ripening well into the autumn, my old boss planted up a small orchard which included russets 25 years ago which I could freely pick as most fall to waste but too far to make a soecial trip now. We have an old tree, which suffers from blossom wilt/brown rot, which ripens early and the apples don't keep. I have been juicing them to get some benefit from them as they drop but it doensn't appear to be grafted. One of the things that strikes me is what a good job apple growers do of storing them so they are available year round.

...but it's regulation 83 of the construction and use act, I believe, that says a semi trailer and a dolly is a composite trailer and classed as one . 18tonne gross through

Flick through this as he shows how to mount and spot weld nickel strips to the cells to make up the battery and then attach the wires to the BMS

well you can buy the cell holders 18650 4x5 Cell Holder 30 pack 20 Cells DIY ABS Bracket US Seller WWW.EBAY.CO.UK Each unit holds 20 - 18650 cells. Once assembled, these cell holders are very difficult to take apart. Trying to do so, you will... and cut them to size, the BMS then has to link into each bank and see the voltage so it can equalise the banks. It#s all new to me but I am looking at changing an obsolete electric bike with a brushed motor over to Lithimm phosphate and a different controller. Other thought is to use some 2.5Ah batteries from power tools.

Wouldn't you need to spot weld the cells into banks and then join the banks in series? Then you need a battery management system to control charge and discharge

It's gardeners with backpack blowers that irk me as they blithely carry on evacuating leaves and dust from a private drive onto the highway.

Just by eye. The thing I try to point out to people is that a sharp edge or point does not reflect light, it has no width so cannot reflect. If you study your picture the near tooth that is in focus has a reflection all round the cutting edge and a more pronounced score on the nearside top plate. The top plates should be self cleaning most of the time but if the cutters on one side are blunt they will cause far more friction as the chain is pushed over in the bar and heats up. When felling ( I don't do chainsaw milling) the two woods that tend to cause a bit of a build up are douglas and ash.

The above chain is blunt

I'm glad you qualified that training remark Marcus 😉.

PM me details and I'll see about visiting.

Well we seem to be singing from the same song sheet, I too have tried but am by no means a good advocate. Try posting this part of the thread to Ramblers Volunteering. My chainsaw qualifications are just over 5 years since my last refresher and include fellinng big trees, using a chainsaw from a harness plus I have a few FMO certificates, including once being an assessor on that scheme. As I did not have NPTC brushcutter, despite having in house training in 1974 , Ramblers sent me on a one day course and subsequently have only allowed me to use the battery strimmer on two 1/2 hour stints. I think the main issue is likely to be public liability insurance and risk assessment-method statement. I'm fairly confident either of the businesses where I last worked would sponsor me under their insurance, especially if they got a bit of kudos for it.

I don't know how far away from me but I have a set of strimmer, chainsaw,hedgecutter tools from a ryobi combi which I am told can be fitted to Stihl engine units you are welcome to.

blocked radiator or faulty temperature sensor?

Not that I've seen, or heard, deathwatch beetle and they do look a bit similar from googling but seem to prefer very old oak that has also been degraded by a specific fungus. Is the building oak framed? Whenever I have had ash logs they have inevitably been bored to some extent in my store.

You have every right to remove an obstruction but using power tools is questionable without the land owner's permission. I am a voluntary path warden within our highway authority scheme and am allowed to cut vegetation up to 50mm diameter to the whole path width (and this can be difficult to decide even with the definitive path statement) with hand tools but hooks are not allowed for safety reasons. Silky and secateurs are about all I can use. I also join groups from the Ramblers under the supervision of the HA's officer for larger tasks but the only power tool we are allowed is a stihl battery backpack trimmer, which is quite effective. It's amazingly frustrating when one is used to power tools and the HA man, an ex copper, is wary of annoying landowner's, who often purposely allow the PRoWs to become difficult to use. I did approach one local farmer and he agreed to let me use a hedgecutter and brushcutter under his farm insurance but after discussing this with another Rambler I received a letter from the HA warning me not to represent myself as a volunteer for the HA (I had not) as I did not have a lookout, was working alone and no warning signs in place (the paths were completely impassable with bramble and mugwort so no fear of meeting people). IMO it does need some robust action to address this loss of access to the PRoW network as often in the south east the councils favour the landowners.

The only decent Rolling Stone has died

Which is why pubs and small shops never say that they will be moving on, first you know is when you see new people behind the bar or counter.