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Everything posted by MartyNZ
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It looks like a handy gadget. I see that an injector cleaning kit is available to buy from China, but it appears that yours has better electrical control. A crude one I made for Scud is show here: https://www.v11lemans.com/forums/index.php?/topic/18805-brand-new-scura/&do=findComment&comment=215317 The Chinese kit has adapters for different injectors using spray can cleaners. https://m.aliexpress.com/item/1005001855410559.html?trace=wwwdetail2mobilesitedetail&spm=a2g0o.cart.0.0.48013c00GOr8LK&mp=1 I don't know if it allows back flushing, which I think is important.
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I've wondered that myself. A higher oil level seems like a good idea for improved pump priming and reduced risk of pump cavitation, so long as the plate is there to stop the crank from thrashing the oil into foam. But then higher oil level means less space for air/oil separation in the returning oil. Also less crankcase air volume may mean more energetic pressure pulses into the breather system, possibly leading to more oil into the air box. Although a 90 degree twin probably has lower pulsing than some designs. Or maybe there is no practical difference.
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Dumb Electrical Question
MartyNZ replied to LowRyter's topic in Special place for banter and conversation
Sorry to hear about your tip over. I blamed the dog when it happened to me. I'd crimp and sleeve. Also I would slide some heat shrink tubing over the wire (before you finish crimping). Even better is the type of sleeving that has glue in it that completely seals the joint when heated. -
Moto Guzzi V100 Sport Tourer: water cooled, 120 HP (26th of August 2021)
MartyNZ replied to p6x's topic in Newer models
Built cranks were reasonably common. Norton Commando cranks are bolted 3 piece. Honda CB350 & 450 are pressed together roller cranks. Yamaha XS650 is a pressed plain bearing crank. Probably lots more that I haven't seen. -
You are not the only one to have trouble with exhaust gaskets. https://www.v11lemans.com/forums/index.php?/topic/19515-help-with-heads/&tab=comments#elControls_211589_menu
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Magni is an Italian company who took good engines and put them into their own frames. The Sfida 1000 uses a Moto Guzzi Le Mans engine / gearbox. https://en.m.wikipedia.org/wiki/Magni_(motorcycle)
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It occurred to me today...
MartyNZ replied to po18guy's topic in Special place for banter and conversation
I need to sit down with a beer to consider the wisdom shown in this thread. But should I measure the beer in milliliters, pints, fluid ounces, or British standard bathtubs? (I just made that last one up). The V11 fuel tank holds about 1/64 BSBs. -
ANSWERED Neutral switch stays on after assembling shift plate
MartyNZ replied to MartyNZ's topic in Technical Topics
I actually shimmed the gear/ cam wheels inwards toward the gear shifting pins to improve engagement in the cam slots. With only 0.3mm clearance, this meant some fiddling with the neutral switch seal washer. -
ANSWERED Neutral switch stays on after assembling shift plate
MartyNZ replied to MartyNZ's topic in Technical Topics
A suggestion to try before you remove the side plate: push a screwdriver into the switch hole onto the cam plate. If you can feel the springiness of the banana plate bending, then it could mean the circlip is off. -
ANSWERED Neutral switch stays on after assembling shift plate
MartyNZ replied to MartyNZ's topic in Technical Topics
Is it possible that the circlip (Item 13) (you call it a Seeger Ring) has come off, allowing the cam wheel to move inboard? [docc edit July 30, 2021: added red emphasis to @MartyNZ's correct answer. Thanks, Marty! ] Or the nut holding item 20 post is not tight? That would allow both wheels to move inboard. (But only a tiny bit) -
ANSWERED Neutral switch stays on after assembling shift plate
MartyNZ posted a topic in Technical Topics
Did you wind the switch in to fix a leak? Try turning the neutral switch out 1/6 turn intervals until it works normally, then fit a seal washer of that thickness. The switch turns on the green light when the plunger extends into a depression in the face of the lower cam wheel. -
Joe says his gears are made of EN24T steel. This British standard is similar to US standard AISI 4340. It's pretty good stuff that could be heat treated up to ultra high strength. "T" condition has good strength yet can still be machined. (tensile strength 850/1000 N/mm² / 123-145 KSI)
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This is very interesting for me. I know my timing chain is sloppy; when I point a timing light into the little inspection hole to see the flywheel mark, I can see the mark jiggling up and down. Since I have to fix this sometime, I have to ask whether you think a new chain and tensioner would achieve the same improvement as a gear set? I expect that it would be a lot cheaper.
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I carry one under the seat in case I need an emergency top up. A downside is it unseats the valve in the wheel, so as you fit or remove it you lose a tiny bit of pressure. If you leave one on permanently, you add to potential pressure leak sources, and may upset wheel balance. Agree on angle valve stems, but Cash1000 had one leak after the thread stripped. Get good quality valve stems. I'm ambivalent on nitrogen. It is well established that eliminating water vapor and oxygen is helpful. Water vapor gives greater tire pressure changes with heat; important to avoid in racing. Oxygen causes oxidation: brittle rubber, rim rust, seal deterioration, and faster leak rate. The mandatory requirement for nitrogen in commercial aviation is valid in that industry where tires are 800% overloaded (intermittantly) in comparison to cars. This does not mean nitrogen is needed for cars or bikes. However consumer tests show a small but real reduction in pressure loss over several months for nitrogen inflated tires. This is good, but Dalton's law of partial pressures tells us that eventually other gasses will diffuse into a nitrogen inflated tire, so purging and re-inflating after several years could be needed. My conclusion is you could choose to use nitrogen if it is free, but checking tire pressure is more important.
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Meinolf gave some advice on tuning to go with his map here: https://www.v11lemans.com/forums/index.php?/topic/21701-ecu-bin-maps/#elControls_233775_menu I used his map on my Ti ECU, and have never been inclined to revert to the Ti map I saved.
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If you find water, you should change the fuel filter, and clear the screen on the fuel tap inlet. I had brown fuzz through my bike fuel system that may have come from disintegrating filter paper.
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Fuel pumped past the injectors returns to the tank through the pressure regulator. You can drain any water/old gas at the bottom of the tank by disconnecting the hose at the regulator, and collecting the fuel as you turn on and off the ign switch. About half a cup will come out each prime cycle.
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Allite Super Magnesium "weighing 30% less than aluminum by volume and being both stiffer and stronger pound for pound". This is a misleading claim. Allite's website states their alloy strength is greater than steel (not in this universe) but they don't give numbers. Be careful not to slip in the snake oil - this alloy is likely to be weaker than the aluminum alloy in the factory side plates. To get equivalent strength you need to make magnesium alloy side plates thicker/bulkier to make up for the weaker material. Allite claim "shock absorbing properties" but this means it is more elastic (lower Young's modulus). This means a more floppy swing arm mount, unless made thicker/bulkier. You should listen to Pete, and also look at the material properties.
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Douglas Noel Adams was a Brit who wrote "The Hitchhiker's Guide to the Galaxy" among other stories. A great storyteller who improved my life. If you find that you are taking yourself too seriously, his books are the antidote.
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ANSWERED Emergency on long trip: any advice on bike randomly shutting down?
MartyNZ replied to jetboy's topic in Technical Topics
There's a good discussion on setting the sensor clearance here: https://www.v11lemans.com/forums/index.php?/topic/21021-guzzisti-friendship/#elControls_240669_menu -
ANSWERED Emergency on long trip: any advice on bike randomly shutting down?
MartyNZ replied to jetboy's topic in Technical Topics
Shimming V11 RPM Sensor.pdf Josh, I suspect that your phase/revolution sensor PN GU01721600 is bad. It is a coil of very fine wire inside a resin body. It can work ok when cold, but become open circuit as the engine warms up. If the connection in the coil wire is intermittent, then the engine will be erratic. See links below to previous posts including an alternate non-Guzzi part source, and gap setting instruction attached. phase sensor repair - How to... - Moto Guzzi V11LeMans.com Forum https://www.v11lemans.com/forums/index.php?/topic/19509-v11-sneeze/&tab=comments#elControls_211454_menu Timing sensor Leak - Technical Topics - Moto Guzzi V11LeMans.com Forum -
Many in NZ say "kays". Although as a country with a lot of sheep, we could start using Sheppies. Douglas Adams said a Sheppy is the closest distance at which sheep remain picturesque (about 1.4 kays).
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I'm still happy with the Shorai battery in my bike. https://www.v11lemans.com/forums/index.php?/topic/19799-pc545-still-the-way-to-go/&do=findComment&comment=247107
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