I thought of a new game tonight. Sportbike Twenty Questions.
Rules:
the bike in question must be a sportbike from the modern era, i.e. something released after the original GSX-R750. It must be mass-produced. I think a Bimota would qualify, but a Mondial would not. An NS400R would be eligible but a TZ750 would not.
I think it would be best if the 'asker' provide a specification of some sort each time a wrong guess is made. For example;
"is it an FZR600?"
"it has a bore of 56mm"
I have an idea for a fun one to start with.
Which motorcycle was released as a race-replica with 1 valve per cylinder?
Re: new twenty questions game
Posted: Wed May 30, 2012 10:23 pm
by fixxervi6
Hmm, something like that, is rotary, or steam, gotta be some german type thing....
Does this motorcycle contain a rotary or "Wankle" style engine?
Re: new twenty questions game
Posted: Wed May 30, 2012 10:41 pm
by shilka99
Remember this is only mass produced, modern sportbikes released or still in production after the original GSX-R750 was released.
I guess a wankel has 1 valve per rotor - the rotor itself, but the bike I have in mind has 4 cylinders.
Re: new twenty questions game
Posted: Thu May 31, 2012 5:02 am
by toy752
Is it an apriia rsv4?
Re: new twenty questions game
Posted: Thu May 31, 2012 6:20 am
by milesmiles
First thing that came to mind was the Honda NR, but when i looked it up it's 8 valves per weird oval cylinder
Re: new twenty questions game
Posted: Thu May 31, 2012 6:44 am
by Rhino
Is it European?
Re: new twenty questions game
Posted: Thu May 31, 2012 7:17 am
by shilka99
toy7521 wrote:Is it an apriia rsv4?
Nope - thats a 4-valve per cylinder motor.
This bike went out of production in 1987
Re: new twenty questions game
Posted: Thu May 31, 2012 7:18 am
by shilka99
milesmiles wrote:First thing that came to mind was the Honda NR, but when i looked it up it's 8 valves per weird oval cylinder
This one has only 1 conrod per cylinder.
Re: new twenty questions game
Posted: Thu May 31, 2012 7:23 am
by shilka99
Rhino wrote:Is it European?
No, its Japanese.
I think I need to redefine the original specification. After looking at some cutaways, Fixxers point of a Wankel rotor acting as a valve reminded me that this engine has 2 valves per cylinder. Both are aluminum.
Re: new twenty questions game
Posted: Thu May 31, 2012 7:28 am
by Rhino
Is it a four-stroke engine?
Re: new twenty questions game
Posted: Thu May 31, 2012 7:36 am
by shilka99
Rhino wrote:Is it a four-stroke engine?
No. Its a 2-stroke motogp race replica.
Re: new twenty questions game
Posted: Thu May 31, 2012 7:48 am
by Rhino
Is it the Suzuki RG500?
Re: new twenty questions game
Posted: Thu May 31, 2012 7:57 am
by shilka99
Rhino wrote:Is it the Suzuki RG500?
WINNER!
2-stroke, twin crank, square four with a disc valve behind each sideways mounted carburettor.