jtt Posted December 9, 2003 Report Share Posted December 9, 2003 According to my sisters boyfriend, who is a 'know-it-all' a$$hole. The 4 Stroke is better for trials because it is more quicker on response, and a lighter engine. The 2 Stroke is faster and is not good for trials. ...now...the '1 stroke' is too clangy?? ....? Ask him if he prefers the "red" or "blue" powerband and would the "yellow" one be better for trials Quote Link to comment Share on other sites More sharing options...
hrc2002 Posted December 9, 2003 Report Share Posted December 9, 2003 :D Hes werid, the sort of lad who will argue until he 'wins', although he doesn't win you give get fed up and give up. 'Always knows best' 'Always right' 'My Dad said that...' That kinda person. My sister is currently doing her driving test (shes 18) and he is giving her tips (hes 16). Think he should wait till he can drive before he starts giving out tips...t**t. Quote Link to comment Share on other sites More sharing options...
the artist formerly known as ish Posted December 11, 2003 Report Share Posted December 11, 2003 My take on four stroke trials bikes, I still ride both at this time although one is a bit old. Changing oil, it doesn't need changing after every ride, but does need changing more often than 2 strokes, Valves, keep in mind all your motor vehicles have valves, how often do you adjust them? my van has 153000 miles on her and never had the valve cover off, adjusting the cam chain once a year on a trials bike to take up the slop maybe. The 4T won't lack for power but it's a totally different feel, keeping the wheel on the ground and letting it grip works better than hopping, also throttle control is more crucial, if the FIM do go this route in 05 I think it will play into Doug's hands just a treat, his style of riding suits the 4t better than that of the Spanish riders. In the US I see the 4T being an hard sell while there is the choice of 4 or 2 with most opting to stay on the two stroke as long as they can. The UK probably will have more takers for the four stroke as the section and riders over there will be better suited, but then again most will stick with the 2 stroke. When it comes to short runs at big steps, I would rather be on a two stroke, but with the age limit keeping riders on 125's longer in world comp and the introduction of 4 strokes for WR could we see more sensible sections that more riders have chance at attempting . I think by the time you can no longer buy a new 2 stroke due to governmental law, there will be some very nice and capable machinery out there, I just hope they have the price something close by then, or a good competitive version for the clubman at a lower price, I think Scorpa are on the right track in this area but need a few more CC's to get more people interested. The bottom line!! those that prefer the 2 stroke shouldn't need to start plsslng and moaning for another 4 years yet, so dry thi eyes and ride the buggers until it changes. It won't be long before we start seeing some pretty usefull pilots giving the plonkers some reet testing on WR sections, once you see what they can do opinions may change? Quote Link to comment Share on other sites More sharing options...
wayneg Posted December 11, 2003 Report Share Posted December 11, 2003 (edited) I had a look at the new Honda 250cc MX bike yesterday and was really surprised by the height and size of the motor - it seems tiny. Compared to a '03 Yamaha YZ250F the Honda is at least 2"-3" shorter because of their fancy single overhead cam design and tappet cover design. I think that this would be a good thing if Honda were to base their trials motor on this engine as the centre of gravity would be a bit lower, and it would give some more scope for making the frame lower as well. Its a bit hard to see from these photos, as the '04 Yamaha engine has changed a bit compared to the '03 Yamaha, and the photos are not completely to scale. Having seen the two bikes next to each other I was surprised to see the difference. Edited December 11, 2003 by wayneg Quote Link to comment Share on other sites More sharing options...
toomanybikes Posted December 12, 2003 Report Share Posted December 12, 2003 My take on four strokes - The manufactures recommend that modern four strokes need the oil changed religiously every other or third ride. Oil filter or filters (the KTM has four) must be changed (or cleaned also). This can be a huge pain if you take into account the hassle of some of these dry sump or semi-dry sump systems or removing a hot four stroke pipe. Regardless if you change it or not, the fours may consume their lubricating oil. When endurance racing (say 50 miles or so), CRF owners often fit a additional oil tank since the bike will consume all of motor oil. Not exactly more environmental in any aspect. Ishy Quote Link to comment Share on other sites More sharing options...
the artist formerly known as ish Posted December 12, 2003 Report Share Posted December 12, 2003 Toooooooooomany bikes are you ever going to get one of the buggers out and come riding with us, no need to change the oil at all if there left in the shed :madsanta: Quote Link to comment Share on other sites More sharing options...
beta-boy Posted December 13, 2003 Report Share Posted December 13, 2003 again all of that is just speculation becuase of MX bikes the only real trials 4 stroke knawledge is from the bike that ishys got and thats getting old so, we'll just have to wait and see :santawink: Quote Link to comment Share on other sites More sharing options...
oldnslo Posted December 13, 2003 Report Share Posted December 13, 2003 The KTM 4S has 2 oil filters and 2 screens. Makes oil changes a pain but seems to work well. Quote Link to comment Share on other sites More sharing options...
toomanybikes Posted December 13, 2003 Report Share Posted December 13, 2003 Hey Beta-boy, are you dating HRC2002 sister? Quote Link to comment Share on other sites More sharing options...
beta-boy Posted December 15, 2003 Report Share Posted December 15, 2003 sorry but im not i am a little know it all though :santa1: at least i try to be(just not an anoying one) Quote Link to comment Share on other sites More sharing options...
fz750 Posted January 7, 2004 Report Share Posted January 7, 2004 My take on four strokes -1) The manufactures recommend that modern four strokes need the oil changed religiously every other or third ride. [snip] 2) When endurance racing (say 50 miles or so), CRF owners often fit a additional oil tank since the bike will consume all of motor oil. Not exactly more environmental in any aspect. [snip] 3) Most four stroke bikes must be adjusted less but it is much more time consuming. Some bikes like the Honda CRF line have been noted to loose their valve clearance within the moto. [snip] 4) After the novelty wears off, after they flooded the bike over and kicked it till they passed out, after they got tired of the maintanance issues 1) Every 3rd or fourth time! Are we talking about a high revvin' competition enduro, or a just ticking over with the occasional burst trials engine. Thought so... 2) Competition engines often loose oil, as they're designed to - Honda seem to almost specialise in this - but there's a reason & it wouldn't apply to a trials motor! 3) Again, you're comparing apples and oranges! I've had XR650s and I've a triumph Cub - none have any significant maintenance issue compared to 2-trokes (like my GG) None whatsoever. Services intervals are less even. (e.g. GG gearbox oil change) 4) Well, from my experience temperamental enduro/Mx motors are NOT to be compared to low revin low compression motors like a Cub's. Kicking the Cub over is easier than the GG, much easier in fact. I have to wonder what with "experience" some people (not meaning anyone in particular!) are commenting on 4-stroke motors. I've had all sorts (well, 2 & 4 stroke), different configurations etc and it's just too complicated an issue to generalise on - wait and see what comes and then complain! Seems like those people with the new Scorpa are happy, right? Kevin Quote Link to comment Share on other sites More sharing options...
gg160 Posted January 22, 2004 Report Share Posted January 22, 2004 anyone member eddie winning world championships, while everyone else was on 2 strokes? Quote Link to comment Share on other sites More sharing options...
the artist formerly known as ish Posted January 22, 2004 Report Share Posted January 22, 2004 (edited) Get thi sens up to Fort William in may, the word is we will see more than one brand of four stroke machine and larger capacity than the 125's of last year, trying to prove their salt against each other and the two strokes. We see all the brand loyalty of my bike your bike, now we can add my two your four in the mix, the last time the two and four stroke machines competed in full battle for the world championship, trials was a lot more interesting than it is now. Edited January 22, 2004 by ishy Quote Link to comment Share on other sites More sharing options...
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