Re: What did you do to or for or with your Laverda today?

I visited Wolfgang in Nakusp British Columbia on Saturday while riding my R1150RT from Phoenix to Edmonton. Wolfgang and his wife are such lovely folks, very friendly and they live in one of the most beautiful areas of Canada.

I got to see the Aladdin's Cave that is Wolfgang's warehouse of parts, just amazing!
 
Well, a couple of days ago anyway. I for the first time fronted at Oslo?s MC mekka for a protest ride against the parking ban for mc in central Oslo. The green lunatics got the balance in city hall and have forced all sorts of shit through. They tried to ban all cars and bikes from the city, but it got watered down to a parking ban, to force everyone to ride the super eco friendly battery powered bicycles they gave a cash rebate for people to buy (not human powered bikes though of course). All the onstreet parking will be converted to lawn for kiddies to play on apparently.
Anyway it was my first time riding in such a procession, pretty cool, but none of the promised pollies fronted to tell us they would overturn the ban if we voted for them. It showed me that 80% of Oslo riders who participate in this stuff ride Yankee iron with loud pipes. The poor little Lav was swamped.
 

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Rode 3 of them today started with the oldest and finished with the newest... lovely afternoon run on the now behaving itself again Corsa. Now its time to change out the carbs for some 36's me thinks.
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And here's one for the counters..
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There's a point Grant!!
Anyway here she is so far.
This bike was originally sold to the USA I bought 80% of what was left of the bike as a basket case as the owner had decided to sell parts off as a get rich scheme he probably would have made more that what you could get for a complete bike these days but I just couldn't do it.
She is a non oil cooled 200mm headlight 35mm fork bike, nearly 100 bikes younger than my Nonna but she is exactly the same.
I was talking to Fernando Cappalotto in March about Nonna and this bike having the earlier homolgation number and he told me that this number was generally related to the mechanical brakes trouble was Moto Laverda had prestamped quite a few frames in fact about 250 so these are indeed early production disc brake triples and most likely built in the first factory.
 

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...well, yesterday.

9 cylinders of pure pleasure.....first ride ever on a CBX....very smooth engine...and surprisingly quick...in a straight line. Also very quiet, my friend could still hear the Mirage when I was riding behind him

Ironically was passed by one bike...a BMW KT1600...quite poignant really.

 

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Fitted a solid state 11A regulator to the 750 ready for Spa.  Volts now clamped at 14.3 regardless of revs & vibration!  The Bosch F026T02200 is a plug and play replacement for the incorrect 30A Brazilian item previously fitted.  Thanks to Piet for providing the Bosch part number here a long time ago. May not be the cheapest solution, but keeps the original look which is important for this particular bike.
 

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ordered a set of rear sets from Wolfgang today, to fit my 79 1200 already with left side shift conversion, right side rear brake pedal, also opted for foldable pegs on the rear sets. Looking forward ot getting them fitted when they arrive.

fitted 65 pilot jets to the 82 1200 TS Mirage Series 2, went from 55 to 60, then 60 to 65, idles well ans no longer stalls at traffic lights, smells a little rich at idle but better than the bike dying at intersections.

got the RGS "1200" Executive out from the back of the garage and got it fired up for the first time this year, going to ride it for the rest of the week and see if it needs anything other than a little exercise.

thinking of swapping the gold Astralite wheels (3 inch front, 4 inch rear) from the RGS on to the 79 1200 once I fit the wider swing arm to the 79 1200, as I want to fit a set of the new 18 inch radial Pirelli Phantom tires to the Astralite wheels, trying to source a set of the Pirelli Phantoms right now.

Paul LeClair

ps

the 79 Honda CBX turbo is now running really well, it is finished and fully sorted. Now I am thinking of turbocharging a Laverda triple just because I can........
 
Paul LeClair said:
Now I am thinking of turbocharging a Laverda triple just because I can........


Malcolm Cox will be your man for that one: I think his Social Climber is still the fastest ever Lav triple to this day...
 
A man in a truck brought 6522 back home today after it had spent 6 months on the other side of the Australia.
Shortly after Bear came over and we went for a ride. Sunny but cool. North from Perth to Bindoon, Dewars Pool Rd to Toodyay, then back to Bear's place.

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240km later.
Bear's bike up front, 6522 at the back.

pete

 
carbs off TOG (again) and installed what I know to be "safe" jetting for the Breganze trip, no she is not being ridden there, but will be trailer queen for the 10 day trip, and getting ridden a lot whilst there, Since the weather may be in the low 30's (c) I cannot risk a jetting change that is bang on the ideal for (say) 21c.The last set did seem to be running nicely with good all round characteristic's, but has not been dyno'd so back one step where it was very close, but a tad on the rich side. rebalance carbs, and all is good, just a final clean and polish and she is GTG. The trailer will now get a thorough clean and service, new lighting (LED) and new tailgate retaining thingies, need to look out the spare wheel for the Mercedes (has a space saver in situ, much prefer a full size one) which also acts as ballast to get the nose weight of loaded trailer (includes DoC's Corsa) bang on the 50 kilo point. Also have to travel with the A frame mounted tool box empty for the same reason, usually its full of the kids motocross/enduro/flat track/ice racing junk.
CLEM
 
CLEMTOG said:
Since the weather may be in the low 30's (c) I cannot risk a jetting change that is bang on the ideal for (say) 21c.

Blimey. You don't think you're getting a bit too fussy Clem? Laverda engines are not highly tuned, so a bit of variation in air/fuel ratio can be tolerated.

My Jota's jetting stays the same all year. Temperature can vary from high 30s to low 10s but the bike always runs OK.


Applying a bit of science (universal gas law): if the pressure remains the same, air density difference between 20C and 30C is 3.4%. To put that into meaningful terms as far as your engine is concerned. Air density reduces with increasing temperature. So the volume that gets sucked into the engine has a lower mass of air in it. Air/fuel ratios are based on mass, so less air with the same fuel means the mixture gets richer as the air gets warmer. If your air/fuel ratio is 14.0 at 20C, it'll be 13.76 at 30C - ie. richer, but only marginally.

The above assumes constant air pressure. Changes in air pressure also affect air/fuel ratios. High pressure (higher mass of air per volume) gives a leaner mixture, low pressure richer.

Let's consider the weather map: wherever you are in the world, warm weather is generally associated with high pressure areas. So if you have a high pressure day (leaner) with warm weather (richer) the effects on air/fuel mixture pretty much cancel out.

Changes in elevation work in a similar way. It gets cooler (leaner mixture) as you go up into the mountains, and the air gets thinner (richer mixture) while your ears are popping with the lower pressure. So again, the effects tend to cancel each other.

The bottom line is that carbies are smarter than we think and can cope very well with changing conditions. If you try to think for them you'll more than likely get it wrong :D
 
Breganze Laverda standard jetting is fine from Breganze which must be at sea level up to Asiago which is at 1000 m. That's where the machines were tested. That from 10 to 35?C.

The 17 tornante road is a great testing ground.

Paul
 
I (and others) are being a little too technical here, what I really wanted to state was that the main jets and needles that were in TOG last week had not been dyno tested, she may have been too week! and with an air cooled motor,(needing fuel for cooling) maybe getting stuck in traffic somewhere (hope not) and 30 or even 35C is not something that I want to risk, so I have gone back one step where I know I am only just below the base line, and all should be safe.
CLEM
 
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