For the development and preservation of 2stroke racing technology specializing in the Honda 250R / TRX250R.
In 2004 Honda and Yamaha finally released their TRX450R and YFZ450 ATV's to re-enter the racing scene with and replace the hugely successful and long dominating Honda platform that was manufactured for only 4 years from 1986 to 1989. Compared to the track oriented racing quads of the era today's "modern" versions bear more of resemblance to the original TRX than any of its contemporaries. Despite Honda discovering such an enduring winning design today's political climate is different and most mainstream manufacturers have for the time being abandoned sales plans for 2stroke motors.
The 2stroke engine despite today's campaigns for pro 4stroke consumerism is a lighter weight, less complicated and by far, cheaper platform to build a racing chassis around. In addition, CC for CC 2strokes make more power than 4strokes typically by about 33% AND with a more simple design. Although All250R 2-Stroke Motorsports can be considered a Honda TRX250R roots effort, All250R welcomes and pursues all useful content related to the preservation, development and usage of all 2stroke motors. Other related usages such as the ATC, CR motorcycle, Suzuki quadracer, Banshee and next generation DI platforms should also be noted. The 2stroke platform is one of the most popular, usable and flexible small racing and utility motors ever created. Superiority through simplicity.
Who wants to buy a cam when all you need are some carefully designed holes?
Web Store Now Open:
All 250R web store
All 250R now has a web store where you can order the best deals on new Honda and other manufacturer parts along with aftermarket pistons, gaskets, intake and riding gear and chassis parts. The store is in the development phase as new products are added. Check back often of send in an email to see if a part you need can be had for the rock bottom price you're hoping for.
Thanks for stopping by and supporting All 250R 2-stroke motorsports, the TRX250R, and the preservation of 2stroke power.
Discussion Forum/Bulletin Board Now Open:
All 250R Board Forums
All250r.com has built a forum for owners to discuss and ask questions about TRX250R and other 2-stroke or technical issues.
Now that this is open please note: This is YOUR board made up primarily of YOUR content. All 250R will not charge you, hopefully not lose all your posts, or abandon you due to lack of interest. This message board recognizes its members and their posts as invaluable. THANK YOU for logging in and keeping 2strokes and the 250R where they belong, in the hands of our white knuckles.
Products (updated 6/09):
eCommerce section with paypal shipping cart coming soon. Any item you find at one of our distributors you can get from All250R.com, but at a reduced price. For you 4-strokers, this 2-stroke company can get lots of performance enhancing goodies for you too. Check them out below:
Open pod airfilter bracket - NO Reed Spacer for your CR boot intake tract
Click here for carburetion items in stock or email sales1@all250r.com.
All250R Engine Building and Services:
Quality and care, the first time, every time.
Engine building documentation (*in progress):
I have documented some discoveries and observations that 250R owners and 2-stroke technologists in general might find interesting or useful. I'll be adding more particularly about porting and other performance engine modifications. Here is information about Honda's stock configurations that were designed into the TRX250R:
ATC/TRX250R stock/baseline observations and specifications
Good reads:
7/09: I found another 2-stroke site that I think deserves some attention. It's nice to see other people out there that feel the same way I do. Kinda gives you that "I'm not crazy after all" feeling. Please check out: twostrokemotocross.com
7/09: From the above site about the develoment of production 2stroke motorcycles from Service Honda entering pro racing: twostrokemotocross.com/Pro 2stroke production
3/09: Wiseco quality. There is speculation in some tight circles that the company is in a downhill slide. Is this video on their notorious crankshafts an idication of that (Thanks David)?
2/09: Another EvinRude pro 2-Stroke ad "Superior to 4strokes... in every category" - (power and emissions)
2/09: Funny one - 4Strokes hurt lol
YFZ450 with a Yamaha 350RZ Banshee motor - I want this!
YFZ450 with a Yamaha 350RZ Banshee motor - Part 2, Riding it.
2strokes next generation, EVERY advantage over a 4stroke - http://www.youtube.com/watch?v=viWhxvo6DLk
Still a demand - I'm a big fan of the R but even I didn't think a nice one could command this price.
Buying a TRX250R. - Here are some tips and pictures on what to look for and ways to avoid issues and money loss (Jason Barton).
TRX250R, Made only 4 years. Why? - The quad stood on many poduims for a long, long time. People wonder, why so short then? (Jason Barton)
2strokes and new(ish) 4's. - A technical perspective on advancements in technology (Jason Barton).
Oh what's that you say? A modern 500cc 2stroke? - "No... who would build that?? After all, dirt Wheels doesn't promote 2strokes!(??)" :)
Honda GP racer - converted to hp: 90.72hp - not bad for 250cc.
Contains an historical outline of when 4strokes were run out by emerging 2stroke tech. - 4strokes are not returning for performance reasons.
world.honda.com/environment... - Honda describes their intentions to replace their 2strokes with more "environment friendly" 4strokes. Scroll down to the "Motorcycles" section. Check out "Power Equipment" too. *Note Honda has abandoned this page in favor of their touchy feely "Green" campaign stuff - brutal...
2stroke vs 4stroke maintenance costs - Reality Check (from LASleeve.com)
Another interesting etech ad - They seem to detest 4strokes. So these ads are fun.
macdizzy.com – big trx250r and 2stroke knowledge site!
everything2stroke.com – great general 2stroke site.
All250R endorsed vendors and service providers:
This is a special section for vendors or service providers All250R 2-Stroke Motorsports has directly dealt with and had a positive experience. The intention is to be able to give All250R customers and friends a reasonable bet that if they went to these businesses that they would have a good experience.
Seat restoration
The best places to get parts:
servicehonda.com – cheapest Honda parts available
cal-atv.com – Almost as cheap as servicehonda. Claims to be able to get some discontinued stuff!
ebay.com – link uses search criteria “(250r, trx250r, "250 R")”
cmsnl.com - a Netherlands company with useful parts depictions including if something is discontinued or not. Their prices at US dollar conversion rates look good, but I don't know if shipping kills it or what. I haven't ordered anything yet from them yet.
Useful content:
Some main Glamis GPS coordinates
Keihin jetting charts
The TRX250R 89 clutch setup:
is considered a better designed lifter configuration because of the use of a flat axial bearing instead of a single ball. That is one of the few significant changes between the 88 and 89 model years. The part number for the entire matching parts kit is:
06220-HB9-305
At servicehonda.com you'll save about $8 over purchasing each individually. It includes these 5 parts:
pressure plate-22351-HB9-741
washer-90459-360-000 - For some reason this part doesn't show on the Honda fiche. Here it is though (12.5mm washer).
bearing-91001-147-006
pushrod end-22352-KAE-770
pushrod-22851-HA2-670
Rants:
Rider Rants
Other stuff I’d like to know:
Any statistical numbers and Honda documented history on the ATC 250R and the TRX250R. The same of any other same-era competitive manufacturer’s products. Any information that gives forewarning when parts will be discontinued by Honda.
*If you have any content you’d like to add to this page or site, please email me at all250r1@all250r.com and I’d be glad to post it up for you!
Pictures of the 4 Honda TRX250R models
The very first TRX250R - 1986. The 86 and 87 came
in white with red or blue.
The 87 displayed slightly different graphics and a few relatively minor modifications (click for the larger other pic).
The 88 looked very different and with the shortened swingarm, handled a bit different too (click for the large version).
The 89 displayed different graphics and color from the 88 but with a couple minor
upgrades to minor parts, was largely unchanged. I have heard that this year was
the least produced and is the most rare.
