Sure, too bad you couldnt ride it on the road in canada in that case
Yamaha R25 unveiled, expected to go on sale in 2014
- Thread starter NTGUILTY
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Sure, too bad you couldnt ride it on the road in canada in that case
Type17
Well-known member
It has to be RIV admissible... otherwise you're stuck with a 5.5k 250cc track bike. I think I was reading here or maybe I saw an ad for a guy selling an RC8 because he couldn't register it in Canada despite the bike being for sale here. The law is weird like that...
You can't import a vehicle through RIV that isn't available here. Thus the RC8 that came out in the US in '08, but not in Canada until '09 is inadmissible because it wasn't available here until '09. The same will happen with this Yammy. Until it's available here, you can't import and register it here.
vociferous
Well-known member
most people forget that the large majority of motorcycles made in the entire world are sub 300cc
-D-
Banned
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This article is written badly.
First it says this bike will be a twin which makes it premium versus it's competitors, implying that the competitors are singles but the Ninja 300 is a twin, too.
Then at the end it says it's not clear if it will actually be a single or a twin...?
Meh I dropped by 525cc's and I'm still happy with the bike.
First it says this bike will be a twin which makes it premium versus it's competitors, implying that the competitors are singles but the Ninja 300 is a twin, too.
Then at the end it says it's not clear if it will actually be a single or a twin...?
Meh I dropped by 525cc's and I'm still happy with the bike.
I looked it up. It seems to be an in-line 2-cylinder with the expected liquid cooling and 6 speed transmission.
I know terms aren't used properly, but if this is a true in-line engine, then that's pretty neat because with a true parallel engine, both cylinders move together in the same direction at the same time as opposed to offset. Offset would cancel some vibration as one is moving up while the other is moving down.
I know terms aren't used properly, but if this is a true in-line engine, then that's pretty neat because with a true parallel engine, both cylinders move together in the same direction at the same time as opposed to offset. Offset would cancel some vibration as one is moving up while the other is moving down.
Pretty sure Ninja 650 and 250 and 300 are all parallel twins and the pistons are not both moving up and down identically. When one is moving up the other is moving down. Parallel twin just means they are side by side not in a V or L configuration. Could also be called an inline twin. Maybe a "true" parallel twin is different but that's what these engines are called.
Ninja 650 = 180 degree firing interval (540 degrees of no firing)
BMW F800 = 360 degree firing interval (perfectly even)
So both cylinders fire at the same time? Probably good for torque but seems like it would be really vibey.
Not that one because it is called a "boxer twin". Both cylinders move in and out in the same firing direction at the same time but they have been oriented physically opposite to each other so the forces have a self-balancing effect. It makes the engine wide and your feet warm (nice for cold days and nights I imagine).
F800 is not a boxer. It's a parallel twin.
You are right, it is not a boxer.
I did some more reading. The F800 definitely fires at 360 degrees. So that's both cylinders oriented the same way in the same direction at the same time. Well, doesn't look like the F800 is for me, I already have a single. 180 degrees is offset. The Yamaha IMHO will be 180 degrees.
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Parallel Twins don't have to run at 360 or 180, they can also be run at 270 or 277 degrees (and possibly other configurations, but I've only heard of those). My XS650 is a 360 degree motor, and it's pretty common for people to re-phase them to 277 or 270 to make them smoother. Though a Parallel Twin has the potential to vibrate, many have counter balancers and are quite smooth, especially smaller displacement engines.
Yep, you've got it. Interesting note: some engines provide a spark to each cylinder at the same time, but actually fire alternately, referred to as a wasted spark.
Very common in motorcycles - cuts the number of coils needed in half. The only other modern alternative is coil on plug, where you have one coil per cylinder. Some ancient bikes have one coil and a distributor.
