Leaderboard

Im Baaaack ...after 20? Years... Looking to change Balabio bars to clipons ala my 02 LeMans... looking for info, ideas and sales. I imagine a lot of sport- LeMans riders went the other way and lots of clipons around out there

Or you could use Docc's kid. 11 bucks a year, I think. https://imgzeit.com

Hi, I have just checked with a magnet as @docc suggested and it is aluminum. Thanks again for all the input. Cheers Jody

I don't understand. What story is the red line shock proof trans lube telling?

I suggest you read the above thread until the end. I am currently having Michelin Road 6 being fitted to my V11 Le Mans. I had Michelin Road 5 all 2023, and I put more than 10,000 miles on them. When it comes to tires, we are all pretty opinionated on what we think is the best choice for our V11. I personally liked the Road 5 from Michelin because they have dual compound front and rear. Now all choices are subjective. Michelin is about the most expensive available on the market.

The bike did not sell, Kaplan has relisted it with a slightly lower purchase price: $6750; initially $7500. Just in case someone would be interested: https://www.ebay.com/itm/395152071269?hash=item5c00e61a65:g:oM4AAOSwIellnyD~

Single plater. Phil

I learned this from Kevin Cameron's writings in Cycle Magazine. Reciprocating engines do not have a 100% consistent crankshaft RPM. At each firing impulse, the cranks accelerates slightly and on each compression stroke of each revolution, it slows a bit. If you could graph it,the variation in rotational speed could be seen. How this manifests in the V11 would seem to be: the transmission input shaft runs through the clutch disc via a splined connection. There is necessary clearance in those splines so that the clutch disc can freely disengage. Engine out of the bike, you can rattle the input shaft in the clutch disc, even though it is a relatively tight fit. Each firing impulse - especially at idle - clanks those clutch splines against the input shaft splines - first against one side of the splines as the crank accelerates, then against the other side as the crank slows on compression stroke. We are talking only a few thousandths clearance here, but it does make noise, especially with dry clutches in a notice: "bell" housing. Wet clutches do not exhibit this nearly as much, as the splines are cushioned by oil, whereas the Guzzi splines are dry. The same to a lesser extent with the transmission gears engaged by the input shaft - they also make some noise, but they run in lube, which cushions and quiets the blow. There is a solution, but it would involve a heavier, more complex clutch disc with spring-loaded "scissor splines." Not worth the cost and effort. Pull the clutch lever in and the clutch disc and transmission input shaft stop rotating and thus the "spline-banging" stops. Singles and twins are worst at this, as their crankshaft accel/decel cycles are more violent. Multi-cylinder engines have smoother crank rotation speeds. Somewhat related, years back, Honda had split cam drive gears with a preload between the two halves of the gear to remove the backlash between the gears. This reduced noise - IIRC it was on their 750 V4 Interceptors so that it could pass noise laws. It also reduced dynamic stresses between the gears. Here is a web article which explains far better than I can. https://www.eng-tips.com/viewthread.cfm?qid=437206 The third answer is from someone in the aero industry: "tbuelna (Aerospace) 1 Apr 18 01:09 It's called a scissor gear. They're used on engines with cam/accessory gear drives to reduce dynamic tooth loads due to torsional oscillations. In the case of your Toyota cam gear, the torsional oscillations are produced by the varying forces acting on the cam lobes. There is a moment in one direction as each leading cam flank pushes a valve open, and a moment in the opposite direction as the valve spring pushes against the trailing cam flank during closing. Conventional gears (not scissor gears) require some amount of backlash at the mesh to prevent interference. When there is backlash, reversing torsional oscillations will cause high dynamic contact loads on the gear tooth flanks at the mesh. These high dynamic tooth contact forces also produce noise. While a scissor gear can reduce dynamic tooth loading and noise, it also involves some mechanical losses. You'll see them used on other engines like Cummins diesels and Honda motorcycle engines"

Hi docc and MartyNZ, Thank you both for your replies. That certainly makes me feel better about the clutch noise. I am in Napier. The bike was first registered in Christchurch (2001) and I purchased it mid last year near Nelson. I think it has always been in the South Island. I am the 5th owner. I have done some maintenance and parts replacements, as some original parts were missing like the headlight and indicators. The back tail piece was also damaged from a luggage frame. Gutsibits and ebay have been a good source for most parts. I will see if I can get in touch with cash1000. Thanks again for sharing your knowledge. Cheers Jody

Like Docc said, that clutch sounds like a normal single plate clutch to me, and that engine sounds like it is running really well too. You should contact @cash1000 who has the same model Rosso Mandello. He just had his clutch out, the aluminium flywheel wasn't cracked, so he fitted it back in. Let us know what part of the country you are in.

This could only be funny to a tiny subset of the world population, and even just a tiny subset of Guzzi people. Might only be funny to one guy we know . . .

https://www.guinnessworldrecords.com/news/2023/9/97-year-old-grandad-sets-record-as-worlds-oldest-motorcycle-racer-758426

If I recall correctly, the Monster headlight is a match for the early Sport steel Bosch unit . . .

I thought I heard something about Ducati Monsters using the same headlight some time ago..... Not 100% sure though. Maybe check that out? Cheers

Arveno…Possibly try Stein Dinse as well…they have a replacement for my 2002Scura so they may have something for your 2004 Lemans…always worth giving them a call… Good luck!!

I'll stick with Dunlops <Guzzi content> $