"return of the Two-Stroke?" thread in "Motorbike Chat"
Originally Posted by Danny_Two When you have to de coke the exhaust or change ANOTHER piston ring you may change your mind. Just had my ...

Fallen Angel · 11-06-08, 14:19

Quote:

Originally Posted by Danny_Two

When you have to de coke the exhaust or change ANOTHER piston ring you may change your mind.

Just had my exhaust welded on her actually, to fix a bit of a leak.

Rockburner · 11-06-08, 14:27

Quote:

Originally Posted by AbjectBlitz

Would love a 2 stroke, would complement my lardy ZZR nicely as an alternative for some hooliganism. But rather than it pretending to be a sports bike I would like something that will happily ride on road and offroad.. What I would like is a modern equivalent to the MZ that is fun to thrash around the bends and go doing silly things in the sand when you get bored with no danger of an plastics cracking when you bin it.

Actually - 2-strokes can be tuned to be VERY torquey - on a par with a regular 4-stroke, and in some instances better.

If you don't make it necessary for them to rev highly, the fact that you get double the amount of power strokes per crank rotation and a reduction of internal moving parts makes them more efficient.

Adam · 11-06-08, 14:27

Quote:

Originally Posted by Rockburner

Never going to happen.

MCN run this story every year - clean burn 2-smokes have been around for about 8-10 years now. The Di-tech engine system was used on a few Italian scooters, but they've never produced a largish capacity model with it.

2-stroke as a technology has a dirty reputation (within government/enviromentalist circles) and it'lll be very tough to change it.

So does diesel. They seem to have managed with that in cars.

I see no reason why they can't do it if it is what is required.

But is it?

Julian_Boolean · 11-06-08, 14:28

LCs were fantastic, I had 4 of them and a couple of RD400s and various MX bikes, but they ain't the easiest of things to ride though very rewarding when you get it right and the fuel consumption is pretty horrendous.

Hunter · 11-06-08, 14:29

Quote:

Originally Posted by Fallen Angel

Just had my exhaust welded on her actually, to fix a bit of a leak.

ah yes the vageries of female pregnancies...

Fallen Angel · 11-06-08, 14:35

Quote:

Originally Posted by Hunter

ah yes the vageries of female pregnancies...

I wish there was such an op... *sigh*

Rockburner · 11-06-08, 14:39

Quote:

Originally Posted by Adam

So does diesel. They seem to have managed with that in cars.

I see no reason why they can't do it if it is what is required.

But is it?

TBH - I don't understand how diesel is so popular - it's no cleaner than petrol emissions wise and although it's possibly more efficient (also cheaper to make), the extra gubbins required in the vehicle (stronger block, turbo etc) would surely make it not worth the effort...

Julian_Boolean · 11-06-08, 14:42

Quote:

Originally Posted by Rockburner

TBH - I don't understand how diesel is so popular - it's no cleaner than petrol emissions wise and although it's possibly more efficient (also cheaper to make), the extra gubbins required in the vehicle (stronger block, turbo etc) would surely make it not worth the effort...

50mpg rather than 35mpg (figures are for Mondeos) and a 2nd hand diesel costs much the same as a petrol car, at least it does at the end of the car market I'm at.

Hunter · 11-06-08, 14:43

diesel doesnt make sense on many levels, not flammable maybe?

if enough peopel cry out for 2-stroke it'll be made whether its 'required' or not

Adam · 11-06-08, 14:46

Quote:

Originally Posted by Rockburner

TBH - I don't understand how diesel is so popular - it's no cleaner than petrol emissions wise and although it's possibly more efficient (also cheaper to make), the extra gubbins required in the vehicle (stronger block, turbo etc) would surely make it not worth the effort...

I didn't either, but then I have always had the "joys"

of shite old tech dervs.
Then I drove a modern one.
I much prefer my 2.2 Honda to any other engine I have driven before.

When you say "extra" gubbins, have you had a look at the average 1.8 litre petrol car these days? Most have a turbo to enable similar performance figures while not quite managing the same economy.
There isn't a lot in it.

Julian_Boolean · 11-06-08, 14:47

Quote:

Originally Posted by Hunter

diesel doesnt make sense on many levels, not flammable maybe?

if enough peopel cry out for 2-stroke it'll be made whether its 'required' or not

Diesel two strokes are the most efficent engines in terms of power obtained per fuel burned, but the only things I know of that are currently using them are large ships.

icarus1859 · 11-06-08, 14:48

Quote:

Originally Posted by Hunter

what say ye??

It looks shit.
Nowhere near as nice as the RD500 'artists impression' that they wheeled out last year.

In case you didn't notice I'm converting my KTM300 into a road bike, thats 300cc's of tuned off-road two stroke snarling beast with road wheels and brakes on. Should be nice

Rockburner · 11-06-08, 14:51

Quote:

Originally Posted by Adam

I didn't either, but then I have always had the "joys"

of shite old tech dervs.
Then I drove a modern one.
I much prefer my 2.2 Honda to any other engine I have driven before.

When you say "extra" gubbins, have you had a look at the average 1.8 litre petrol car these days? Most have a turbo to enable similar performance figures while not quite managing the same economy.
There isn't a lot in it.

Fair point.

Mind you - if everyone were to give up the obsession with performance - petrol engines could be made efficient and simple again.

scottland · 11-06-08, 14:54

Quote:

Originally Posted by Rockburner

Fair point.

Mind you - if everyone were to give up the obsession with performance - petrol engines could be made efficient and simple again.

....and where exactly is the fun in that??

Rockburner · 11-06-08, 15:07

Quote:

Originally Posted by scottland

....and where exactly is the fun in that??

you've obviously never chucked a commuter bike down a country lane...

11-06-08, 14:28	#19 (permalink)
Julian_Boolean Senior Member Join Date: Jan 2008 Location: Royston Vasey on Sea Posts: 2,790 Casino cash: £145400 Thanks: 6 Thanked: 20/20	Re: return of the Two-Stroke? LCs were fantastic, I had 4 of them and a couple of RD400s and various MX bikes, but they ain't the easiest of things to ride though very rewarding when you get it right and the fuel consumption is pretty horrendous.

11-06-08, 14:43	#24 (permalink)
Hunter Senior Member Join Date: Jan 2008 Posts: 6,965 Casino cash: £165900 Blog Entries: 1 Thanks: 3 Thanked: 28/27	Re: return of the Two-Stroke? diesel doesnt make sense on many levels, not flammable maybe? if enough peopel cry out for 2-stroke it'll be made whether its 'required' or not
	KARMA... THE GREAT LEVELLER...

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode


These advertisements are reduced in size when you become a registered member and removed when you become a TRC Supporter / Sponsor member.

"return of the Two-Stroke?" thread in "Motorbike Chat" Originally Posted by Danny_Two When you have to de coke the exhaust or change ANOTHER piston ring you may change your mind. Just had my ...

Thread Tags: 2 stroke, yamaha rd350

"return of the Two-Stroke?" thread in "Motorbike Chat"
Originally Posted by Danny_Two When you have to de coke the exhaust or change ANOTHER piston ring you may change your mind. Just had my ...