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GuestBob posted:Such as... revs? Coughs and splutters? Wind direction? Ok so what your symptoms describe is a vacuum leak, what this means is that unmetered air is being sucked into the engine. The EFI measures how much air the engine is pulling and injects fuel proportionally. If air is being ingested through a crack or something somewhere downstream of the throttle, the EFI has no way of knowing and the bike will run lean and idle really high. You find this leak by spraying burny juice at it and listening for a change in the engine rpm and sound, it won't be subtle.
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Aug 18, 2021 20:22
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#JustBritishVehicleThings I remember years ago looking at an old Lotus Europa on ebay motors and the seller had written "This is a very reliable car. I would not hesitate to take it on a 100 mile road trip."
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Aug 18, 2021 20:25
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Slavvy posted:Ok so what your symptoms describe is a vacuum leak, what this means is that unmetered air is being sucked into the engine. The EFI measures how much air the engine is pulling and injects fuel proportionally. If air is being ingested through a crack or something somewhere downstream of the throttle, the EFI has no way of knowing and the bike will run lean and idle really high. You find this leak by spraying burny juice at it and listening for a change in the engine rpm and sound, it won't be subtle. This is a perfect description, thank you.
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Aug 18, 2021 20:27
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Sagebrush posted:#JustBritishVehicleThings When I lived in Europe, a 100 mile trip was *looong*!.
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Aug 18, 2021 22:02
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RightClickSaveAs posted:At an event once long ago, I ran into another guy carrying around a motorcycle helmet (having a motorcycle remains the number 1 way to meet random dudes) and he was talking about his Royal Enfield he'd had, said his experience with it was they're decent bikes once you replace all the Enfield parts with bits from other manufacturers. An example here, though, which does also apply to the new twins: the mufflers, when constructed, were chromed before the end cap was welded on. Welding destroys chrome. So they just apply a band of chrome-ish paint over the weld bead afterward. The paint doesn't last long and you see rust on that spot after a couple years. This is on a part which is prominently visible on the bike. That's spectacularly cheap halfassed manufacturing. They should really be ashamed of that. ALL of the design and manufacturing on the singles is/was like that. The EFI system they used on their unit construction engine introduced around 2009, although made by a legit company (Keihin), was almost antique in design. It still had a manual fast-idle lever, something which the Japanese and even the Italians abandoned entirely on their bikes about 8 years earlier. Although now that I'm typing this it occurs to me that Triumph still had that on the early EFI Bonnevilles around the same time as the Enfields. I guess India really is British as the empire always claimed?
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Aug 19, 2021 02:24
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So I bought a 2015 CBR300R today. It's black and has about 3500 miles on it and I think I'm in love. I want to thank all you wise people ITT who convinced me to get a small bike. Most people I know IRL advised a 600, but after only two hours in the saddle I'm convinced they're all terribly wrong and you people are right. Sure it's low power. Some more power would be nice at times but it has enough and enough is plenty. I didn't get it until I took it to the twisties, but I think I get it now. Or at least I'm beginning to get it. I could write a wall of text about my impressions about those two hours I've ridden today but I won't. I'll just say that the main thing I've learned today is that riding without fear is the only way to ride.
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Aug 21, 2021 21:39
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Invalido posted:So I bought a 2015 CBR300R today. It's black and has about 3500 miles on it and I think I'm in love.  You're getting it. Fear is the mind killer. Fear is proportionate to cognitive load and confidence in your abilities. Faster bigger bikes give you more cognitive load while also having performance really far from your ability. All this turns into a negative feedback loop where your pants-making GBS threads panic makes you do crap lines, deathgrip the bars etc which further discomfits the bike which further saps confidence and and so on. Tips for reducing fear on a learner bike: practicing braking obsessively, both upright and while leaned, gives confidence you can stop any time, which gives confidence to keep the engine on the boil as much as possible, which makes small bikes a lot less slow than they seem. Practicing controlled play with lean/speed, very large deserted roundabouts are good for this, reduces the sense of trepidation about adding lots of lean angle quickly. Once you can do this in conjunction with keeping the engine fizzing, you can unlock the main strength of small bikes, which is corner speed, and start to really humiliate well moneyed individuals with triple digit horsepowers.
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Aug 21, 2021 22:25
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time to post this again https://www.youtube.com/watch?v=Kz03sQeX02c just embarrassing the guys with four times the horsepower by masterful energy management. if it weren't for the straightaways they'd never catch him
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Aug 21, 2021 22:33
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Sagebrush posted:time to post this again This is the reference. And to think: modern learner bikes are considerably faster than that even if their power output were identical because of the huge steps in tyre technology and chassis understanding that have been made since the ex250 was designed. Meanwhile the too much power crew are just as useless and slow as they've always been, if not worse, because it turns out even more power papered over with TC doesn't actually replace skill.
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Aug 21, 2021 22:56
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The speed differential when he passes them in the turns or when they're closing in on him and just fall back as a turn comes up is fantastic. I never get sick of this video.
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Aug 21, 2021 22:57
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Slavvy posted:Meanwhile the too much power crew are just as useless and slow as they've always been, if not worse, because it turns out even more power papered over with TC doesn't actually replace skill. Me vs the world's slowest V4R https://www.youtube.com/watch?v=760drgW4l7I
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Aug 21, 2021 23:23
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Slavvy posted:words How large is a "very large" roundabout? The biggest one in the city seems to be 150m in diameter, but that's all the way across town. The one right next to home is only 50m across. Ideally I'd like to be able to do what you suggest without going enough above the speed limit to risk my licence. I foresee some very late night or very early morning riding regardless of where I go in order to get this done. I've seen that Laguna Seca video before, but I didn't understand what I was looking at. It's inspiring for sure. But yes, I'm lots faster already on this slow bike than I ever dared to go on a faster one. I was pretty sure for a while there that my speedo was way out of whack since the numbers seemed absurd compared to my sensation of speed. Also all the cars I saw were going really slow for some reason, never experienced that before. The speedo seems accurate to within a few percent so it's all in my head. Brains are weird.
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Aug 22, 2021 00:19
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eat a motrin and figure it out, there's no such thing as a rider who's going to live long without knowing how to emergency brake being able to exercise hard braking and maintain control throughout on a moment's whim is the only reason im still alive today
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Aug 22, 2021 00:25
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Razzled posted:eat a motrin and figure it out, there's no such thing as a rider who's going to live long without knowing how to emergency brake Skip the motrin (ibuprofen) and eat a benadryl (diphenhydramine), but only one of them. If you've lived with motion sickness your whole life you probably already know this trick
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Aug 22, 2021 02:34
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This is particularly annoying because the EX250 man, a righteous and honest individual on a real bike, is making fairly conservative passes on people, whereas the inept and ignorant asswipes on the sad liter bikes are buzzing him half the time and then cutting him off and trying to do an endo on the brakes into every turn. Is this the Extra Stupid Group at that particular track day?
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Aug 22, 2021 04:25
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My favorite part is the corner at about 4:00: - ninja 250 guy carries a ton of energy into the corner but gets blocked by guy on black bike (R6?) hauling on the brakes - black bike realizes that there is someone much faster behind him and waves him past - because they're accelerating out of the turn, no chance of ninja 250 making the pass at that point, so he just hangs back - black bike looks back and does a double-take, perhaps realizing how badly he just got clowned - both bikes start to enter the corkscrew and ninja 250 blows past him like he's standing still, only to have to drop the anchor for another guy riding like a turd - 250 passes turd on the exit of the corkscrew and remains ahead of both of them until the end of the main straight it's just so good Sagebrush fucked around with this message at 04:59 on Aug 22, 2021 |
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Aug 22, 2021 04:54
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Newbies: repeatedly dropping anchor for a turd
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Aug 22, 2021 05:00
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Jazzzzz posted:Skip the motrin (ibuprofen) and eat a benadryl (diphenhydramine), but only one of them. If you've lived with motion sickness your whole life you probably already know this trick Yeah, there's a couple of different antihistamines sold for the purpose that help. They also make me drowsy and dumber than normal. Warning labels mention slower reactions and stuff like vision alternations. Fine for being a passenger but not great for riding or driving. What I find works at least to some extent (and there's some actual empirical data backing this up) is large quantities of ginger, so that's what I've been using before doing track riding lessons where brake drills were a thing. I think I'll probably use it every day when riding is possible from now on so I can brake practice more when an opportunity presents itself.
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Aug 22, 2021 07:35
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OK so I'm about to go to work soon and the thermometer says 6 degrees. That's 42 degrees american. It's only going to get worse. The only aftermarket mod I'm seriously considering for this bike is heated grips. Worth it? I figure I can't learn if I don't ride and having cold hands suck. I have lots of warmer gloves since I pedal bike commute all year round but I these offer little crash protection and heated grips are probably cheaper than a set of really warm motorcycle gloves.
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Aug 23, 2021 05:34
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Get a set of these hilarious things https://www.amazon.com/Moyishi-Waterproof-Motorcycle-Handlebar-Thermal/dp/B074SD352W
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Aug 23, 2021 05:59
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Invalido posted:OK so I'm about to go to work soon and the thermometer says 6 degrees. That's 42 degrees american. It's only going to get worse. The only aftermarket mod I'm seriously considering for this bike is heated grips. Worth it? I figure I can't learn if I don't ride and having cold hands suck. I have lots of warmer gloves since I pedal bike commute all year round but I these offer little crash protection and heated grips are probably cheaper than a set of really warm motorcycle gloves. Oxford Heated Grips are honestly life changing. They are fantastic and you should get some immediately.
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Aug 23, 2021 06:45
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Steakandchips posted:Oxford Heated Grips are honestly life changing. They are fantastic and you should get some immediately. Thanks, I will. Just need to make sure I get the right model. Oxford themselves aren't being very helpful but it seems I have a choice between "touring", "adventure" and "sport" and that it basically comes down to length if I've understood things correctly. Invalido fucked around with this message at 08:42 on Aug 23, 2021 |
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Aug 23, 2021 08:29
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Length and knurling pattern.
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Aug 23, 2021 10:00
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Just get adventure or touring, they are the longer ones, you can cut em down to size if needed.
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Aug 23, 2021 10:43
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For what it's worth I've found that heated gloves/grips are of marginal utility and the really best thing for keeping warm is keeping the wind off me with a windscreen/fairing and keeping my core warm with a heated jacket/vest. If your torso isn't warm then the rest will never work right.
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Aug 23, 2021 11:51
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I find that all of those things and heated grips and heated gloves to be essential in the Scottish winter.
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Aug 23, 2021 12:03
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Yes keeping the core warm is crucial. Wind deflectors for the hands might be hard on a sports bike i dunno. My experience from low temps winter bike riding is that fingers and toes are the hardest to keep warm even if the core temp is good. I'm talking at temps down to -15C which is my pain limit, though motorcycle riding at those temps will have to wait until I get a dual sport on studded tires I think. That I don't care if it rusts because road salt is a thing. So maybe never  The grips I have now are 120mm but it looks like there's room for 125 or so. "Touring" is 120mm untrimmed and "sport" is 123 (can be cut down to 114), so that one is probably at the sweet spot. Also delivery tomorrow from Amazon for like €80. Imma doit.
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Aug 23, 2021 12:37
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Sagebrush posted:Get a set of these hilarious things Bar mitts are legit and I used them to ride the DRZ well into a Wisconsin winter one year
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Aug 23, 2021 15:28
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I couldn’t imagine riding a motorcycle in the winter here, with regular dumps of 30-50cm of snow and frequently -25 C temperature. Maybe I’m just a giant baby though. Still rode my bike up until the first week of December last year though.
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Aug 23, 2021 15:35
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I survived my mini road trip. Bags worked great. Bike was a champ. Lots of 6th gear highway cruising. Great weather. Drivers were decent enough.
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Aug 24, 2021 05:36
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Are there any negative consequences of habitually bump starting a motorcycle? My parking and living situation makes it effortless and quite safe. I like to roll slowly for about 40 meters down a narrow lane past my neighbor's windows without starting the engine when I leave (noise and cold engine exhaust smell is what I'm thinking others might object to since I don't like these things myself). When I reach the street I have enough speed to bump start in second should I choose to.
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Aug 24, 2021 11:44
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Probably not? The forces on the drivetrain would be less than a hard shift at redline
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Aug 24, 2021 12:54
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Invalido posted:Are there any negative consequences of habitually bump starting a motorcycle? I don't see why it would be bad, but you have electric start anyway, so why bother with the extra effort of bumping it?
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Aug 24, 2021 14:29
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Invalido posted:Are there any negative consequences of habitually bump starting a motorcycle? Just make sure you know where you’ve got the throttle when you let the clutch out.
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Aug 24, 2021 14:39
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Invalido posted:bump starting a motorcycle So today this is the new thing I learned. How cool.
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Aug 24, 2021 15:26
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Learn how to do it because you will almost certainly have to do it at some point.
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Aug 24, 2021 18:06
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Bump starting at those speeds is not going to hurt the bike at all, no. Where it becomes dangerous is bump starting at high speeds when you are in a low gear. If you roll down the hill in first gear and get up to like 40 miles an hour then pop the clutch, the engine will immediately have to spin up to redline or beyond, and the rear wheel will probably lock up from the sudden drag. Neither of those things are good for the bike or your health. (Incidentally this is also why you should avoid coasting with the clutch held, e.g. up to a stoplight. If the clutch is suddenly released, the engine and wheel speed will be forcibly matched, and that could be a bad day.) So just make sure that you're in an appropriate gear for how fast you're moving before you try it, and you'll be fine. Second gear and a jogging pace is about right. Sagebrush fucked around with this message at 20:02 on Aug 24, 2021 |
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Aug 24, 2021 19:59
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Bike can't tell the difference between a bump, a crank or a kick so go hard.
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Aug 24, 2021 19:59
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Steakandchips posted:I don't see why it would be bad, but you have electric start anyway, so why bother with the extra effort of bumping it? That's the thing, it's literally no extra effort at all. My parking spot ramps down to the lane. The lane is slightly downhill so I carry enough speed to stay balanced while coasting slowly all the way to the street, which is where I start my engine to spare my neighbors any noise or exhaust in the early mornings, because it's no inconvenience to me so I just do it out of courtesy. When I hit the street and start my engine I have enough speed to go straight into second so it's no harder to not use the starter button and just start the engine that way, which is why I can see it becoming a habit, thus the question posted. HenryJLittlefinger posted:Learn how to do it because you will almost certainly have to do it at some point.
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Aug 24, 2021 20:10
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HenryJLittlefinger posted:Learn how to do it because you will almost certainly have to do it at some point. Advice from CA that I've found invaluable: Put your bike in second. I haven't thought through why it works so much better than first, but it fuckin does.
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Aug 24, 2021 20:16
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