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My thoughts exactly about the oil pump. I mean gear pumps are indestructible. The only time when I had a failure of an oil pump, was on my Kawasaki S2, which caused the engine to seize. It was a trochoidal pump, but on a 2 stroke, the requirements are different.

Gear pumps are usually pretty solid... however, it is a bike with only 3000 miles on the meter? perhaps a manufacturing defect?

Is this a ruby helmet? Yes indeed! good catch... Ruby helmets; I did not even know that brand. Since you recognized the helmet, is the owner someone you share Guzzi rides with? I went on their website, and they advertise themselves as "haute-couture" helmets. French design, carbon fiber, top quality accessories. Rubyhelmets.com Since you have one, how different is it from the mainstream brands?

So you are riding your bike with that large dial attached to your rear-view mirror?

What I can't really figure is why the low oil pressure light would not stay lit if the issue was a ruptured seal, or a malfunctioning trochoid pump. If it was an o'ring failure, it could make sense. Some o'rings seal with pressure. But if they don't seal properly, the oil flow past them would wear them down, causing the permanent leak. The flat gasket on the oil filter would keep leaking if it was not sealing properly. But when cold, the oil viscosity is higher, so you would have a better sealing ability.

The Jackal lady has the best smile...

My Le Mans is mainly fastened by hex socket screws black, so I supposed they were initially protected by phosphatation, but they have now started to rust.

Would it make sense to test the oil pressure sensor which would only consist of applying pressure and using an ohmmeter, checking the resistance between zero pressure and work pressure applied? Making the test jig is a small investment though, for just that one time.

Just curious... How much do you actually pay for insurance for a V11 in Canada? are the rates different depending which state you live? Today, I pay less in insurance premium than I used to when I lived in Europe. I was just amazed at how cheap it is.

This got me thinking a bit more.... We are in the 70's, the Japanese bikes are suddenly flooding the European traditional market. I am a Japanese designer and all the fasteners on the engines are cruciforms JIS which as we now know look like any other cruciform but cam out when the proper screw driver is not used. What were the chances of finding a JIS compliant screw driver in Europe? the hex socket standard was the same in both worlds. It would have been a better choice.

Thanks to you, I found the description of all head drives and the JIS B 1012. I am pretty certain that I was certainly impossible for me to find the appropriate tool for a JIS B 1012 cruciform head. Hence, the reason why we exchanged them all with hex socket heads. Anyway, I was totally unaware the Japanese had their own standard, but why not.... https://en.wikipedia.org/wiki/List_of_screw_drives#JIS_B_1012

The world is changing, and electric cars are starting to pop up more often than before. We have some major cities setting dates after which only EV's will be allowed in. We have car manufacturers which are setting objectives to cease internal combustion engine production. While I am fine with driving an electric car, and I am likely to replace my dearest 911 Porsche with a minuscule Smart E, I would never purchase an electric motorbike, nor ride one. This is not about autonomy, but the simple core pleasure of having a thermal engine heavily breathing, and the ability to change gears myself to negotiate curves. As far as I understand, an Ebike will never be that. The actual pleasure of driving is being redefined and I am certain our children may not need to learn to drive in the near future. Cars will drive themselves. They will be dull and uniform. Yesterday's and today's cars will be relegated to history and museums. Would you trade your bike for an electrical one if it became law?

We could have a long conversation about fasteners. In the 70's, the Japanese bikes that got in my hands were all equipped with "Philips" heads. This type of head is notorious for being prone to wear. So we replaced them all with hex drive fasteners. Back then, we could only get the non stainless ones. It still costed a little fortune. There there is the usage of the washers. I was taught that a fastener would always sit atop a washer to distribute the torque on a larger surface, and a saver measure. For example, you would never install a split lock or tooth lock washers without a flat washer in between. Last, there is the metallurgy of the fastener itself. German steel always was the best. I have screws that broke as I was trying to tight them up using a torque wrench. Today, we have even more solutions with heads, but socket remains the standard for motorbikes, I guess?

In music, they say an "interval" is the distance between two notes. The smallest interval in Western music is the half step, the largest the whole step. Here is Texas, we prefer to use the "two steps".

Here's my 6 cents; In your narrative, you report the issue was initially intermittent. The light would not always go off after a restart. The work around was to shut down, and restart after a cool down. The analysis would be the pressure switch is the culprit. If the oil flow path was the root cause, it would not have been intermittent. A failure of the oil pump, or a short path circulation created by a non sealing component would have been permanent once established. I may be wrong, but it reads this way. A malfunctioning pressure switch could fail the way you described.

I managed to get something from Brembo, but I had to log myself from within Italy to get to the motorcycle configurator; And as you can see, for your bike, they only sell the rotors. No brake pads, no caliper....

In the workshop manual I have in pdf format, there is not a single part number for any of the components. They are described by their names, they have an item number, but no part number quoted. The link supposed to provide you the manual for the V11 with the part numbers no longer work.

I queried their website with the part number posted, and drew a blank. I got an Aprilia part number instead: Front brake caliper - AP8213196 Obviously, the manufacturers always do that! they take a Brembo part number, and they rebrand it with their own part number. It would be so simple if they had kept the Brembo part number across the board, so only one reference, even if compatible with multiple motorbikes. But we are no longer talking about a repair kit....

Well if you noticed, UPS, DHL, FedEx have a service charge for clearing customs "on your behalf". I do buy a lot of goods from Europe, and I always get the taxes double dip. Boonstra does not use eBay, and they automatically remove the NL VAT when they sale outside of EUR.

You should be fine. Most of these shops go eBay for the exposure. But you don't need to pay the extra money from eBay since these guys have an Internet site, and they are certainly used to send goods all over the world. I looked at the Powerhouse uk web site, and when you click on the repair kit to buy it, you are taken to eBay. Looks like you are going to pay the 20% local VAT on top of everything else eBay is going to charge you automatically, such as local US taxes too. Do not waste time trying to address that issue with eBay, I tried so many times, and you can never speak to anybody who understands taxes.

I am guessing a call to Brembo Italy is in order. The US representation of some of the foreign companies here seem to be purely PR work. I have been in touch with Alpinestars in California for my TechAir 5 airbag. Phone calls, and the people I spoke to always need to get in touch with someone else in Italy. But when it comes to vintage parts, UK and NL are king.

I ordered bars end weights from Boonstra in the Netherlands. It was at my door in three days using DHL. Actually, they arrived before my Formotion instruments ordered the same day from California. Contact Powerhouse UK directly tomorrow https://powerhouse.uk/ forget eBay... Remember, if the parts are new, they should be VAT exempted and the courier to the USA should also be VAT free. Since the parts are below $800, you should escape paying import duty. I did not pay any import taxes for my bar ends weights. When you use eBay, they charge you automatically for local taxes independently of the country where the goods are sent. Because in Europe, by law, sellers have to quote new item prices with the VAT included. There is no VAT on used goods. In EUR you only pay VAT on new items.