Biker.ie Forums Irish Motorbike Enthusiasts
Faugheen50 Road Races    
Home Join Us! Mobile Version Racing Section Mark Forums Read Rideouts » Register free!

Go Back   Biker.ie Forums > General > General Bike Chat

Reply
 
Thread Tools
  #1  
Old 16th May 2017, 12:15 PM
Dub Duke's Avatar
Dub Duke Dub Duke is offline
Finally graduating from2T
 
Biker.ie Member No. 20467 from North County Dublin
3,978 posts since Feb 2010
Motorbike: NSR 250s, R6 13s
Modifications: Loud can
Default KTM - injected 2 strokes

I was dubious as the whether this would actually happen!

http://www.motorcyclenews.com/news/n...on-two-stroke/

KTM have taken the wraps off their two new fuel injected enduro machines, the 250 EXC TPI and 300 EXC TPI. The two new models are the world's first production fuel-injected two-stroke off-road motorcycles.


The two models use Transfer Port Injection, which means the twin fuel injectors will fire directly into the transfer port. KTM say this method of fuel injection smooths out power delivery, and also results in a drastic reduction in fuel consumption.
Reply With Quote
  #2  
Old 16th May 2017, 12:31 PM
N11 EXPRESS's Avatar
N11 EXPRESS N11 EXPRESS is offline
Supporter
 
Biker.ie Member No. 8741 from Cill mhaintain
10,258 posts since Mar 2008
My Motorcycle Pics Motorbike: sp1, crf rally ,z50monkey
Modifications: Yes but no faster
Default Re: KTM - injected 2 strokes

No mention of reducing emmision which I thought was the reason for two strokes disappearing
Reply With Quote
  #3  
Old 16th May 2017, 12:37 PM
Dub Duke's Avatar
Dub Duke Dub Duke is offline
Finally graduating from2T
Original Poster of This Thread Topic Starter
 
Biker.ie Member No. 20467 from North County Dublin
3,978 posts since Feb 2010
Motorbike: NSR 250s, R6 13s
Modifications: Loud can
Default Re: KTM - injected 2 strokes

Lower fuel consumption correlates with lower emissions.
Reply With Quote
  #4  
Old 16th May 2017, 01:34 PM
kwackquack kwackquack is online now
Supporter
 
Biker.ie Member No. 28051
2,903 posts since Jan 2012
Motorbike: zx6r
Modifications: fines
Default Re: KTM - injected 2 strokes

Originally Posted by Dub Duke
Lower fuel consumption correlates with lower emissions.
wonder what the tuning potential is then if you're not a tree hugger
Reply With Quote
  #5  
Old 16th May 2017, 03:57 PM
Irish Mav Irish Mav is offline
Supporter
 
Biker.ie Member No. 35035 from Wicklow
132 posts since Jul 2015
Motorbike: Suzuki Bandit Gsf 600s
Default Re: KTM - injected 2 strokes

anyone know what the effect on maintenance will be? not an expert on two strokes particularly dirt bikes but my understanding is they need a ton of upkeep. would be interested in grabbing on to supermoto if they were more in line with other bikes.
Reply With Quote
  #6  
Old 16th May 2017, 04:23 PM
Interceptor's Avatar
Interceptor Interceptor is online now
Fucks given = 0
 
Biker.ie Member No. 2916 from Chume, Counteh Galweh
17,088 posts since Mar 2006
My Motorcycle Pics Motorbike: Big Red Piggies
Modifications: Horsepower, lots of it...
Default Re: KTM - injected 2 strokes

Very nice. I hope the technology makes it onto a road bike at some stage.

'cptr
Reply With Quote
  #7  
Old 16th May 2017, 04:24 PM
Vjmc.Cork's Avatar
Vjmc.Cork Vjmc.Cork is offline
Biker.ie old-skool
 
Biker.ie Member No. 24081 from Near Wild Heaven
7,051 posts since Sep 2010
Motorbike: Chainsaw/bike hybrid
Modifications: White Wall tyre
Default Re: KTM - injected 2 strokes

Originally Posted by Irish Mav
anyone know what the effect on maintenance will be? not an expert on two strokes particularly dirt bikes but my understanding is they need a ton of upkeep. would be interested in grabbing on to supermoto if they were more in line with other bikes.
2 strokes don't need a ton of upkeep.Use good oil and let the bike warm up before thrashing it and it'll be as reliable as any diesel.
Some engines suffer from bad designs which cause problems but if you avoid them you should be golden.
And they'll put a smile on your face every time
Reply With Quote
  #8  
Old 16th May 2017, 04:29 PM
Irish Mav Irish Mav is offline
Supporter
 
Biker.ie Member No. 35035 from Wicklow
132 posts since Jul 2015
Motorbike: Suzuki Bandit Gsf 600s
Default Re: KTM - injected 2 strokes

Originally Posted by Vjmc.Cork
2 strokes don't need a ton of upkeep.Use good oil and let the bike warm up before thrashing it and it'll be as reliable as any diesel.
Some engines suffer from bad designs which cause problems but if you avoid them you should be golden.
And they'll put a smile on your face every time
Perhaps I've been wrong but is there not a need to change oil and pistons etc. in times measured in hours or is that just racing them?
Reply With Quote
  #9  
Old 16th May 2017, 06:20 PM
Vjmc.Cork's Avatar
Vjmc.Cork Vjmc.Cork is offline
Biker.ie old-skool
 
Biker.ie Member No. 24081 from Near Wild Heaven
7,051 posts since Sep 2010
Motorbike: Chainsaw/bike hybrid
Modifications: White Wall tyre
Default Re: KTM - injected 2 strokes

Originally Posted by Irish Mav
Perhaps I've been wrong but is there not a need to change oil and pistons etc. in times measured in hours or is that just racing them?
Race lads change pistons regularly for preventative reasons.I've only ever changed a 2 stroke piston on bikes that have been mistreated or ridden into the ground.You will need to replace pistons more than on a 4 banger but you could do it at the side of the road with basic tools.No arseing about with cam-chains or valve timing or any of that shite.You have gearbox oil which needs to be changed but nowhere near as often as those other yokes.Engine oil is total loss so just keep the tank topped up.
Reply With Quote
  #10  
Old 16th May 2017, 10:20 PM
Holy Moly Holy Moly is offline
Supporter
 
Biker.ie Member No. 29352
929 posts since Jul 2012
Motorbike: Vintage MX, Bandit 600
Modifications: Really stiff Springs !!
Default Re: KTM - injected 2 strokes

You can buy a decent used 2T for the price of a 4T rebuild. Talking MX bikes now. You can rebuild a stroker yourself, not everyone can do a 4 banger.
Anyhoo, the 2 injectors meter the petiterol and the oil, so fuel efficiency and emissions are controlled on the double AFAIK. Be great to see how they go, complexity will increase I imagine and I always feared that a separate oil tank was something extra to stop working, ain't nothing like a full throttle seizure at or near a jump.....it fucking hurts !
Reply With Quote
  #11  
Old 16th May 2017, 11:35 PM
Irish Mav Irish Mav is offline
Supporter
 
Biker.ie Member No. 35035 from Wicklow
132 posts since Jul 2015
Motorbike: Suzuki Bandit Gsf 600s
Default Re: KTM - injected 2 strokes

Originally Posted by Vjmc.Cork
Race lads change pistons regularly for preventative reasons.I've only ever changed a 2 stroke piston on bikes that have been mistreated or ridden into the ground.You will need to replace pistons more than on a 4 banger but you could do it at the side of the road with basic tools.No arseing about with cam-chains or valve timing or any of that shite.You have gearbox oil which needs to be changed but nowhere near as often as those other yokes.Engine oil is total loss so just keep the tank topped up.
Ah brilliant to hear. Well I may start keeping an eye out for that second bike.
Reply With Quote
  #12  
Old 17th May 2017, 11:23 PM
joe williams joe williams is online now
WSB Contender
 
Biker.ie Member No. 23271 from tipperary
549 posts since Aug 2010
Motorbike: zx6r p7f . cr500 .
Modifications: black duct tape
Default Re: KTM - injected 2 strokes

Originally Posted by Vjmc.Cork
2 strokes don't need a ton of upkeep.Use good oil and let the bike warm up before thrashing it and it'll be as reliable as any diesel.
Some engines suffer from bad designs which cause problems but if you avoid them you should be golden.
And they'll put a smile on your face every time
Reply With Quote
  #13  
Old 1st June 2017, 08:13 AM
Dub Duke's Avatar
Dub Duke Dub Duke is offline
Finally graduating from2T
Original Poster of This Thread Topic Starter
 
Biker.ie Member No. 20467 from North County Dublin
3,978 posts since Feb 2010
Motorbike: NSR 250s, R6 13s
Modifications: Loud can
Default Re: KTM - injected 2 strokes

http://www.motorcyclenews.com/news/n...-enduro-range/

It's now a trend!
Reply With Quote
  #14  
Old 1st June 2017, 08:23 AM
doctorchopper doctorchopper is offline
MotoGP Legend
 
Biker.ie Member No. 2855
1,641 posts since Mar 2006
Default Re: KTM - injected 2 strokes

Originally Posted by Dub Duke
Not really a trend, husqvarna is owned by ktm, they are basically a white ktm but slightly speced higher, better forks and linked rear suspension.
Reply With Quote
  #15  
Old 1st June 2017, 01:48 PM
hornethead's Avatar
hornethead hornethead is online now
Supporter
 
Biker.ie Member No. 19332 from Dublin
946 posts since Nov 2009
My Motorcycle Pics Motorbike: KTM SMT 990,BMWs
Modifications: Akra cans, remap,
Default Re: KTM - injected 2 strokes

Originally Posted by N11 EXPRESS
No mention of reducing emmision which I thought was the reason for two strokes disappearing
Nope sure all the big ships around the world are just big slow speed two strokes, reliable and now pretty fuel and emmision efficient.
Two strokes thermodynamically are more efficient than 4 strokes, and as a study from one of the biggest independent engine R&D uni's in the world said, we have spent over 120 years developing engines running on the more inefficient cycles.
Reply With Quote
  #16  
Old 1st June 2017, 02:18 PM
renniks's Avatar
renniks renniks is offline
Supporter
 
Biker.ie Member No. 31828 from Athlone (ex-Dub)
3,180 posts since Jul 2013
Motorbike: XR250 / XR650L / 1150GS
Default Re: KTM - injected 2 strokes

Originally Posted by hornethead
Nope sure all the big ships around the world are just big slow speed two strokes, reliable and now pretty fuel and emmision efficient.
Some of the big cargo ships (8000 containers) have engines that are 50% efficient.
18,500L capacity, 85,000hp, and can do approx 100,000 miles on a full tank
Reply With Quote
Reply

  Return to Main Topic Biker.ie Forums > General > General Bike Chat

Tags
injected, ktm, strokes

Thread Tools



Support Biker.ie


Forum RSS news feed Main Biker.ie RSS news feed