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dadof2

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Everything posted by dadof2
 
 
  1. The capital cost and complexity of ABS would add at least £1000 to the average bike. A new ABS pump alone for most cars costs between £1200 and £1500.
  2. Since you are going to have to fit a new piston you may as well get the barrel replated. The crankcase is probably weldable, standard Beta cases are. That engine has had "worn out" transmission oil in it, hence all the rust. As oil ages or becomes contaminated its anti oxidant additives run out, Oxidation (rust) then starts.
  3. Does it not say what type of fluid to use on the reservoir cap?
  4. This is a very good reason for quitting the EU. Once we are out it will be far easier for the UK government make appropriate changes . This "one size fits all" approach the EU has must be about as stupid as you can get.
  5. I think the Vertigo uses transmission oil to lube the clutch side main bearing. Therefore it is important to maintain correct level of clean gearbox oils. Main bearings are not tolerant of dirty or insufficient lubrication. Main bearings are being worked hardest up hills or during acceleration, which are the same conditions that move oil to the back of the transmission, away from the maim bearing.
  6. For the lower footrest positions use 16swg mild steel sheet with stiffening provided by bolt hole sleeves as per your post. You need 2 sheets per side about 12mm apart. Mig weld the crack. Before MIG welding polish / sandblast the area to bright metal then warm it with a propane torch until it starts to turn straw colour, then weld it immediately. If the tube is badly corroded near the crack cut out to good metal. Get some pipe with a slightly thicker wall and turn it so it has spigots on each end that slip inside the existing tube. Do not use stainless steel.
  7. Too true. If you look at your stator coil with the extra resin bulges there are dark areas in them, this can indicate burning / overheating.
  8. Many of the rules we are expected to abide by are regulations, nor legislation. There is a big difference. The problem is not so much the laws being pan european or not, its the manufacturers making bikes that do not comply with them properly. If the ACU, AMCA and manufacturers representatives got together and presented a reasoned case to the government to reduce the size of the digits and plates and reserve the registration combinations with fewer digits for motorcycle use they may listen. When rear mudguards were at reasonable angles and the size fitted to monoshock Yams, Fantics etc there was hardly ever a problem with number plates, since the introduction of thin pointy things stuck up in the air numerous riders have been warned that if they don't put it right they will be prosecuted.
  9. I have known this at a few trials several years ago, these trials are now run all off road. Remember last years Scott when the police targeted spectators and retiring riders. This situation is entirely the sports own fault, stupid rear mudguards, lack of reliable speedos etc. It is also one of the reasons the sport is declining because the bikes can't be used for anything else. Like I have said previously on this TC before. if it says "not for highway service" on a tyre buff it off with sandpaper or a flap disc. The ACU should take the lead on this by negotiating with the manufacturers and the government. A horn should not be required. A proper mechanical speedometer should be fitted to front wheel. The rear mudguard should not point skyward and should have pre drilled mounting holes for a proper plate. DVLA should assign motorcycle registration to minimise number of digits and they should be able to be smaller than standard car size. Another problem trials, mx and enduro bring on themselves is lack of adequate silencing. Just pointing the outlet at the ground would make a huge reduction the apparent noise level.
  10. That stator looks as if it has been hand rewound. Has the bike run since it has been fitted? The source coil for the HT is usually wound with very fine wire (about 0.2mm) and has a resistance of about 50 to 90 ohms. The trigger coil resistance will be in the range 800 to 1250 ohms Resistance is not a good guide to serviceability. Far better to spin the flywheel with a drill. The source coil should give over 20V and the trigger coil 1.5 V, possibly up to 4.5 V. If the "trigger coil" gives different resistance values when the meter connections are swapped round, it is a hall effect sensor and you really need an oscilloscope to check it
  11. Sound advice, works for family planning as well!
  12. dadof2

    Beta 200

    Like the previous poster I am pretty certain that the 200s have always been sleeved down 250s. I had a 125 apart (07 or 09) not long ago and I doubt if there would be enough metal to take it out to 200. The sealing surfaces are minimal as they are.
  13. Could it be some land used for the Reeth 3 day that has been the problem?
  14. Sorry I can't help but I do know trials tyre prices are really annoying quite a few riders because they feel they are being ripped off.
  15. Pressure bleeding is the answer. 10 to 30 PSI applied to the master cylinder will usually do the trick.
  16. This is very unlikely but it is possible. Look up "latent heat of vapourization". What can happen if you leave your petrol on or your fuel tap leaks is that petrol slowly runs into the carb and evaporates. The evaporating fuel lowers the air temperature causing condensation. The condensed water than trickles into the crankcase. Given the right atmospheric conditions / humidity this process can produce a drip of water every few seconds. I have seen this demonstrated on a 4T engine with the engine stopped so both valves are open and a draft of air can pass through. The warm moist air enters via the airbox, it is then cooled and becomes more dense / heavier and flows out of the exhaust. When this is happening the carb feels really cold on the outside and condensation droplets appear.
  17. I do not know if the following applies to your Sherco but the following is something all riders should be aware of. At one time all 2T trials bike main bearings were lubricated by autolube or premix. Now quite a few rely on the transmission oil. Transmissions are quite tolerant of dirty oil or low oil levels, main bearings are NOT. Up slopes in particular when the engine is working at its hardest the transmission oil runs to the back of the engine / gearbox, potentially starving the main bearing of lubrication. Any dirt or low oil level accentuates this.
  18. Champion N-9Y or N4G Bosch W-200 T30 NGK BP-7E Auto-Lite AG-32 AC C42N Lodge CLNY There is no such thing as a truly correct plug, it depends on the ambient temperature and the type of use.
  19. Plenty of well know present and retired trials riders attended this event. Strange that not to far from here traditional trials events that used to attract well over 100 entries (Alan Jeffries and CCMC Velocette cup) struggle to get a fraction of that now.
  20. Consider joining the TRF
  21. The bulk of the funding farmers receive from the EU are production subsidies with very little linkage to environmental stewardship. These will cease when we leave the EU. The schemes that affect motorised off road use (and many non motorised pastimes) are run by Defra and Natural England. Many farmers want to see subsidies maintained after UK leaves the EU. What the Uk government is saying is that rather than subsidies primarily being linked to production / land area owned they will once we depart the EU be primarily paid for the degree to which farms participate in environmental schemes. As these are likely to be administered by Natural England and the "greener" factions of Defra this change does represent a challenge for off road motorsport. Hope the above clarifies why this is not really anything to do with the EU. The EU does have rules that can be applied by Derfra or the Environment agency but rarely are. For example these rules can be used to stop motorcycles riding in rivers where the silt stirred up or the disturbance of gravel can harm the breeding areas of migratory fish.
  22. I think it was Namur where he was so far ahead he had time to pull in for a beer. How time flies
  23. Put a spare 3 or 4 litres in a can in a rucksack. Then you can ride your bike until it runs out. You then know how far you can go and fill up from your can to get back. When I use to practice quite a bit and ride a few miles to get to my practice area I use to carry a litre bottle of spare fuel. I would then hide it somewhere within a mile or 2 of where I was practicing. Meant i never had a really long walk even if bike used more than expected (float valve can stick or bike can get dropped a bit causing more fuel to run out)
  24. The environmental strewardship schemes which MAY prevent motorsport are mainly the result of Natural England (A government quango) and very little to do with Europe. Natural england is staffed by people with very little time for or acceptance of others views that contradict they own agenda. If a farmer knows what he is doing when signing up for a stewardship scheme they can exempt certain parts of their land. Defra has in the past deliberately misinterpreted EU regulations in order to try to prevent off road motorsport. I am in favour of brexit and there is one useful thing about it as regards the above - your MP will no longer be able to pass the buck and blame Europe as they do all too frequently. The stewardship schemes are quite liked by farmers as they give guaranteed income for quite a number of years. If motor clubs want to use the land they are going to have to make it economically attractive to the farmer. At least stewardship schemes are time limited (often 15 to 25 years) whereas SSSI are indefinite with very little chance of being overturned. http://www.bbc.co.uk/news/science-environment-40673559
  25. Try and find out if the cracked case is magnesium or aluminium. If its aluminium it might be possible to repair by welding.
 
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