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4 stroke motorcross bikes.

Started by 88_vl_bt1 · 15 June 2009 · 308 replies

Preserved from CalaisTurbo (partial recovery). Original authors and dates are shown; archived members are not current Holdcom accounts.

88_vl_bt1Archived member
Quote: Originally Posted by giantbrandon 06 brand new from the shop only changed the oil and filters did 800km then sold it cause i mates stoped riding it was very easy to ride very forgiving, not as off its rocker as a 450r my mate had one and always had trouble keeping the front wheel down and my mate with the yz450f hated his when he stalled on a hill plus mine had a stand, if you plan on long rides you will need a bigger tank Alright, thanks mate. Not too convinced on the yzf's i'm planning to arrange to have a look at a crf aswell. When you say your mate had trouble with his yzf stalling what do you mean? was it on a hill and just runs out of torque? or is it to do with the way the clutch is set up? thanks mate.
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YEP_boostArchived member
Stalling on a hill has nothing to do with the bike, thats the rider. Believe me if you want reliability buy a YZF or a WRF. The crf R's make a touch more power and can be a little temperamental but it is moreso the earlier 04-05's that show up issues. The crf 250x and 450x dont suffer the same valve issues though and are a far more reliable bike. I'm still not sold on the KTM's, we get heaps of guys coming in saying they regret buying them and want their wrf's and yzf's back. They also have a big recall on atm for oil pressure issues with the 08 450's.
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HTURBOArchived member
I usually ride in Bunyip state forest, Noojee, Poweltown, Jindivick and Neerim east pines. Every year I ride in the Blue light rally held in Noojee. Last year there was well over 1500 riders. It the biggest enduro event in Victoria. Some of the best riding and scenery. It's a 1 day event with BBQ's, Drinks and a band. Each year just keeps on getting bigger. I didn't go last year but the year before two lucky entrants won a bike each, a TT-R230 & WR450F. This event been running for 34 years. It's about 1-1.5 hours drive from Dandenong. Anyway here's a couple of websites, check it out!! http://www.useddirtbikes.com.au/modu...s&nID=18&pg=LN (http://www.useddirtbikes.com.au/modules.php?mod=maffo_news&nID=18&pg=LN) http://bikedeadline.com.au/?page=Dow...D2007111368952 (http://bikedeadline.com.au/?page=DownloadFile&id=ABD2007111368952) Here's last years entry information + info http://www.bluelightride.com.au/
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88_vl_bt1Archived member
thanks for that info mate. I was planning on steering clear of the ktms iv'e heard there nothing but trouble. what are the issues you have come across with the 04-05 crf's?
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HTURBOArchived member
I think KTM's are expensive + parts, not much of a fan of them. I had my CRF450R for nearly 5 years now and I haven't had any valve problems. I know every time I fill the gerry can I place 20ml of MOTUL valve expert in. Mine is a 2004 CRF450R and the only time it went to the Mechanic was just after I brought the bike for a spares kit. I only placed the spares kit through because the bike was raced previously and I wanted to start a Log Book. That's the only time it's been to Honda. Since then I service it regularly and I've had no issue's. Also what yep boost said:- If you after a maintenance free bike buy the CRF X but if your after a lot of toque and power buy yourself a CRF R. If you buy the CRF R be prepared for a bit of maintenance. Heck I rather a bit of maintenance and have a reliable and powerful bike. The only hitch is that the CRF450R don't come with recreational plate, lights & a mirror. But allmost any bike shop will fit one. And there's another thing you might not like about the R model CRF is that they have a very long 1st gear. Made for taking off the start line when racing. I know the x model CRF has a closer gear range, made for climbing those hills a bit easier.
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obsesvArchived member
Quote: Originally Posted by sohc2 Seriously though I see so many noobs that cant ride to save there life and guess what there all riding, 4 strokes... They are just so easy to ride, no skill involved at all, anyone can ride them. To ride a two stroke well takes skill. Heaps more fun as well when the band comes on. Not a fan of four strokes as you can tell lol. i agree completely! NOTHING beats powerband, i still have my old yz80 that i learnt to ride on, and no **** that would give my xr250 a bloody good run for its money, its only an 80cc but let me tell ya, the thing ****in flies, i had a yz250 after that, oh the fun i had on that thing! BUT, in saying all that, it really does depend on your riding style, and what kind of riding you do!
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giantbrandonArchived member
my mate just wasnt a good rider and the taller 1st gear was no good for him on really step hills and when i would stall id hit the start button and off i went but he had to push his bike down the hill and try again, between all my mates only th ktm has had problems the thing just wont run right but its been ridden twice as much as every other bike, i got a brand new bike so i didnt need to do anything to it, im a mechanic and my best mate is a motor bike mechanic and as long as we kept the oil changes up and filters clean we had no problems
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gmjetArchived member
i agree with what was said about 2 strokes, cant beat them! owned a cr80 yz125 and cr250 before i got my first 250f. ive now been riding 4 strokes for a year and a bit and recently bought the 09 CRF250R 3 weeks ago, excellent bike! easy to maintain, and very reliable. It handles the tracks the bush and any sort of riding i throw at no worries. the powers there in pretty much any gear, hated 4 strokes at the start but now i love them.
Photo 1 shared by gmjet
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HTURBOArchived member
Quote: Originally Posted by gmjet i agree with what was said about 2 strokes, cant beat them! owned a cr80 yz125 and cr250 before i got my first 250f. ive now been riding 4 strokes for a year and a bit and recently bought the 09 CRF250R 3 weeks ago, excellent bike! easy to maintain, and very reliable. It handles the tracks the bush and any sort of riding i throw at no worries. the powers there in pretty much any gear, hated 4 strokes at the start but now i love them. What your opinions about the new efi carb? any good? I was thinking of upgrading but not to sure about the efi CRF450R. Some feed back would be great.
Photo 1 shared by HTURBO
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88_vl_bt1Archived member
ended up buying a 2006 crf450 yesterday thanks to everyone for your helpful advice. Some original photos have not been recovered yet.
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sampoArchived member
**** yeah, nice bike Some original photos have not been recovered yet.
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gmjetArchived member
Quote: Originally Posted by HTURBO What your opinions about the new efi carb? any good? I was thinking of upgrading but not to sure about the efi CRF450R. Some feed back would be great. in my opinion it feels alot different from the 08 its really snappy and poppy and pulls like a donkey but they are still carby, i think next year the crf250rs come out with efi. i couldnt really compare the crf450, seeing as ive only ridden 3 different ones all of different makes, but the 09 crf450r that i rode was very smooth, well balanced and had big power. definatly a monster lol i think the 08s and below (carby) were a little more aggressive (so ive heard).
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HTURBOArchived member
Yeah I heard the same thing. They've been saying that the EFI CRF450R produces smother(wider) acceleration than the carb CRF450R. And reliability is way up there. Also I've heard that they can change there mapping on the EFI. It will be interesting to see the difference between lap times of the carburetor CRF450R and a EFI CRF450R. It's good to see Honda's up there with the technology. Are the power figures any different between the CRF450R carb & CRF450R efi?? I remember my 05 CRF450R is 45rw/kw(standard). I've also placed a twin-air air filtre on and a Pro Circuit exhaust. To help with response and acceleration(power).
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gmjetArchived member
From my experiences the reliability has always been rite up with the hondas and yamahas, never had any major problems with them and neither have any mates besids one who seized his 250r last week. I heard the new efi crf450r is pulling faster lap times but because its not as aggressive it doesnt feel as though your going faster, even though you are if that makes any sence, but im guessing the power figures will be a little different. i love the way they look! they have gone back to the 96-99 model shape and put a new sharp twist on it.
Photo 1 shared by gmjetPhoto 2 shared by gmjet
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sohc2Archived member
haha i had a cr250 97 model back in the day. First of the alluminium frame! The 96 still retained a steel frame didnt it? Me on my old CR250 03 model woooooot!
Photo 1 shared by sohc2
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HTURBOArchived member
Quote: Originally Posted by 88_vl_bt1 ended up buying a 2006 crf450 yesterday thanks to everyone for your helpful advice. Wicked, I know you'll be happy with a CRF450R. You'll have to tell us what you think. I know after your first ride you will have sore arms(from hangnig on). Some original photos have not been recovered yet.
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BoyracerArchived member
The new bikes are pretty crazy looking, the new four strokes must fly, my old KLX isnt the latest but is still good for 160 km/h and has plenty of grunt.
Photo 1 shared by Boyracer
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trbo3ltrArchived member
RM250 Some original photos have not been recovered yet.
Photo 1 shared by trbo3ltr
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88_vl_bt1Archived member
Quote: Originally Posted by HTURBO Wicked, I know you'll be happy with a CRF450R. You'll have to tell us what you think. I know after your first ride you will have sore arms(from hangnig on). took it out for the first big ride the other day, I'm really impressed with how easy to ride it is. The power is great for the bush. Couldn't be more happy with it except for dropping it and dinting the pipe a bit lol. Some original photos have not been recovered yet.
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HTURBOArchived member
Need some opinions. My valves are over due to be done on the CRF450R & was on it's last shim. Spoke to new world Honda about it & he recommends to go with stainless steel valves instead of the titanium valves. There where titaniums valves in it before hand just wondering which would last longer. I love the power, but I'm sick of taking the bike all the way to Narre Warren for a shim every time it losses power. It's impossible to start now because there must be no compression. So what's best you reckon. Stainless steel or titanium. I know titanium is stronger & lighter but also more expensive. It will cost me $700 for the head to reconditioned with stainless steel valves. The 05 CRF450R has titanium valves for intake only & stainless steel for exhaust. Weird hay.
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