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I have to disagree about sliding TY175 forks down flush. Whatever shockie length, footpeg location or handlebar rise, sliding the forks tubes down flush with the top clamp might improve the ground clearance but it makes the steering in sections worse, not better.
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The 88 model TY250 has a completely different hub so has a different cable to the twinshock TY
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I don't know how common they are around the world but there was one a bit like that in our club until 2 years ago when he finally got sick of my complaining and converted it back to being a lovely, standard, M198A.
As a monoshock it looked hideous to my eyes, having USD forks from an early 1990s Fantic and a modified Pursang swingarm and front and rear disc brakes. The linkage mechanism and shock were from a TY250N.
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http://www.southwestmontesa.com/
http://www.inmotiontrials.com/
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Stork I posted the spacer details including a photo on the Trials Australia website this afternoon.
David Lahey
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Yes the Hebos do have a different angle. I always felt like I was standing on the leading edge of my Rev3 footpegs so it was a great relief to ride it with Hebo pegs. My feet and legs were much happier.
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I haven't had a van for many years now and am interested in getting one for trials bike transport.
The Vito is by far the most popular bike transporting van here. The other vans I see mentioned in this forum are available here with the exception of the little Transit but in the popularity stakes the merc Vito leaves the others for dead. What I'm interested in is why is it so? What is wrong with the Vee Dub and the Citroen? We also get a newcomer from Hyundai (the iLoad) that is a Vito look-alike and I haven't heard anything good or bad about them yet.
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Neither type of tank shown in the slide show looks like anything I've seen on a modern motorcycle. My guess would be that both shapes are recently made and purpose built to go on a bicycle and the especially ugly shape with the side bulges is intended to appear like something from a 1960s Eastern bloc motorcycle. They are probably made from fibreglass.
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TY80 small wheel tank too short
TY80 big wheel tank too long
TY175 tank too short
A DT tank will be too wide at the back end
Most twinshock Yamaha dirt bike tanks will "fit" but it would pretty lucky to get one that looks good. Even YZ125C tanks look strange on a TY.
Surely there are the later model (aluminium) TY250 tanks available from wreckers. They look fine on an A model.
David
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Yes it is the wrong kickstart lever.
I'm not sure if the 247 arrangement is the same as the 348 but if it is, then yes there should be a stop but the stop is a bit fragile and yours may have been broken by overrotation of the kickstart shaft. Remove the magneto flywheel cover and all will be revealed.
There is lots of info available here about your 247
http://www.southwestmontesa.com/
David
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Sorry Woody I had the metallic green paint matched by a spraypainter from an old KT sidecover. I suspect that is the sort of thing that most people have done. The spraypainter told me there were no listings (or he didn't have access to any listings) of paint numbers for old dirt bikes like the KT.
David
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Tim that got me thinking and the first famous/infamous person with Wayne as a middle name I thought of was John Wayne Bobbit.
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Woody the late 1970s KX125 case in the photo I posted has the arm at the top of the clutch bulge like the red KT photo and the 250cc KT prototype shown in the Don Smith book. Every KX250 I have seen has the arm at the front of the bulge. How can you say the KX125 cover is the same as the KX250?
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Heres a KX125 with a clutch cover that looks like it might be the same
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The red KT in the photo has a KT motor that has been fitted with the clutch cover from a KX motor.
Why don't you take a photo of your motor and post it up so we can have a look at it?
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Ignition timing is adjusted by rotating the stator mounting plate. Yes you have to take the flywheel off to get to it. Your motor probably has adjusting slots for the screws that hold the stator mounting plate to the crankcase.
If you rotate the stator mounting plate in the same direction as the crankshaft rotates, you will be retarding the ignition ie it will spark later in the cycle than before you moved it.
If you rotate the stator mounting plate in the opposite direction to the way the crankshaft rotates, you will be advancing the ignition ie it will spark earlier in the cycle than before you moved it.
I hope this helps
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We run 10 club trials per year and rider numbers have increased from about 20 (total) in 1995 to 60 (total) at present. This year the numbers riding at events has ranged from 25 to 45. Most riders live within a 150km radius of the riding sites. Some drive 1800km (1080 miles) each way to attend the 2 day events but that is only two or three of the riders and they only come twice per year.
Most of our riders live in one of two regional centres separated by approx 120km, both around 50,000 population. One is heavily industrial, the other heavily agricultural (beef cattle). The industrial centre tends to have more riders per unit of population (probably due to a high proportion of petrol heads)
Successful strategies for us are:
Running all-day riding demonstrations at weekend markets, swap meets, machinery shows, car shows and annual regional shows. We have a permanent riding display site at the Historical Village of one of the towns and a portable set of obstacles including fake boulders, real logs and a creek with waterfalls (made of fibreglass).
Getting a story with a photo in the local papers during the week preceeding the trial
Making posters and having then displayed at motorcycle shops
Inviting the local TV station to come and take footage - they usually stay for the first lap and put 30 seconds coverage on the local evening news.
Running a club email list for everyone who shows an interest in trials
Running a club website with lots of interesting photos (not just top riders on obstacles - lots of people shots)
Supporting the use of older bikes (for people on tight budgets) with donations of parts and help with keeping them running
Keeping as many second hand bikes in the local area as possible. This has worked very well with the growth we have seen because new riders can buy a 2-3 year old bike without having to travel long distances to a capital city.
Having an annual final 2 day trial/Christmas party with a catered meal and award presentations
One of the riders produces an annual DVD of the years events with very high production values and this is first shown at the party. The contributing footage is communal.
I just converted our local "gas" price into US units and it is $US6.87 per US gallon. The people who drive from 1800km away pay more like $US8.00 per US gallon on most of their trip.
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I just had a read of the New England rulebook and while there are some differences to how we run things, I couldn't see anything that would be affecting rider numbers.
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Heres the Aussie version. Click on General Competition Rules 2008
http://www.ma.org.au/Content/MA/FormsRules...f_motorcycl.htm
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If you like hopping the front of the Scorpa, why not just learn to hop the DRZ instead of all that modification stuff?
I've done lots of course setting for Pony Express and Enduro events on a similar bike to your DRZ and found that when you get caught in a very tight spot the old fashioned balance-the-bike-on-the-rear-wheel-and-pivot-it-around-to-the-new-direction works very well. It is easiest if you pivot towards the left so you can hold the rear brake on while your left foot stays on the ground.
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Copemech's explanation is very good and even works without a beer to help. The man in the boat is definitely what makes the boat.. er...bike turn. That is why bikes are more fun than 4 wheelers in my opinion. There is way more skill needed to do the turns well on two wheels.
Whoever it was that asked the question first, you can do an interesting experiment on a dusty surface that will answer your question perfectly - actually any surface that will leave a visible track of the front wheel of your trials bike.
Part 1
Ride the bike in a full lock turn with standard fork height. Measure the diameter of the front wheel mark.
Part 2
Raise the forks as high as you want in the clamps and try it again. Again measure the diameter of the wheel mark (it might be a bit smaller diameter than part 1)
Part 3
Put the forks back to standard position and ride the turn with the bike leaning over into the turn about 30 degrees and your inside foot just above the inside footpeg (to make sure you have all your weight on the outside footpeg). This time the turn diameter will be much smaller than in parts 1 and 2 and you may not have even touched the steering angle stops in the process.
Good clutch control, rear brake control and footpeg weighting is how to make a trials bike turn amazingly tight.
If you ever find the front wheel sliding sideways on a flat or soft surface, that is a clear message that rider technique is in need of improvement.
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Its not Don Smith that created that ugly KT frame, it is just a standard Japanese feature to have an ugly frame. No matter what Don created in the UK for Kawasaki, by the time it became a production bike out of Japan the elegance would have been lost.
The Cota 247 frame design (created by Don Smith and Montesa) is pure elegance.
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Well you might have slightly reduced the pressure drop through the airbox, but the reduced surface area of the air filter media would surely cause a few issues if the bike ever gets ridden in dusty conditions.
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Yes that would be great. I would love to be able to do away with having a side stand.
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Yes Neo. Of course that can be welded back up again. If you have to pay someone tradesmans rates to do it though it might cost you more than a new set of pegs.
You really should think about getting some decent strong pegs though and improve your bikes reliability. Imagine if that had happened during a trial. Forged steel, pressed steel, fabricated steel, cast steel or titanium (for the weight conscious) footpegs are the go unless you are never going to scrape or whack them on rocks. Hebo pegs are almost indestructible and very comfortable.
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