Posts
642
Joined
10/30/2013
Location
Sherwood, OR, USA
Edited Date/Time
1/26/2016 5:52pm
I'm more of a 2 stroke guy, but for some reason, the old works 4 stroke bikes, and conversion bikes tickle my fancy. Anyone have any in their stable, or have some old photos?
I had this conversion Elsinore until last year. No idea who did the conversion, but it was cool none the less. XL125 motor, Powroll goodies, total loss ignition, etc.
I had this conversion Elsinore until last year. No idea who did the conversion, but it was cool none the less. XL125 motor, Powroll goodies, total loss ignition, etc.
I think the counseling has helped but admit I just pulled a spare 125 Rickman chassis out to see if (how!) the Triumph 250 motor will be fitted.
This will be my last one, Well, after I get the Pro Fab Yammie and CCM done.....
My dads bike...... 1982 Cheney Yamaha, XT 500 motor bored and stroked to 600cc, extra stud on the barrel to help hold her together then every other cooling fin hand cut off, modified oil feed straight into the cam, the engine has no flywheel, the end of the crank has been removed completely and it runs an interspan ignition ( used a lot in speedway, recharchable battery pack, you charge it from your car battery with a lead that plugs in ) makes the engine build and lose revs very quickly, much like a modern 250f but a much bigger, deeper boom...... It frightens grown men who aren't used to it when it fires up. The Frame is built by Eric Cheney ( Google him, seriously, worked in a shop not much bigger than a garage and built some simply amazing machines, nearly won a 500 motocross world title with John Banks and when he dipped a toe into road racing one of chassis did win a world championship ) This bike was built for his son, Simon and purchased by my dad in 1985 direct from Eric and Simon, it has full titanium engine bolts, foogpeg bolts etc, front end is factory Kayaba with titanium internals, caps etc, hand made alloy tank, side panels and air box, modified YZ seat, non linkage mono shock rear end with CR 480 shock, modified to run no link front wheel is YZ, rear is an XT 550 hub with cush drive to help the gear box..... I have raced this bike many times and it is simply awesome, a real experience.
Good thread and brave on here with the 2 stroke Taliban, I love all bikes 2 and 4 stroke big and small.... I even have an ATC 70 tucked in a corner of my garage
Nice bike...
The Shop
Luxon 4-Post Bar Mounts
$189.95 - $239.95
DeCal Works Huge Plastic Inventory of UFO and Polisport kits.
Cool thread by the way.. I have some of my own junk bikes from way back to add here...
I sure wish I knew whatever happened to the Kelvin Franks-built Hondas. There were two I understand.
Then
Now
Same exact Genuine Aberg in both photo's
May have been Designed and assemblied in the UK, however it was perfected in America !
Do please have a good look at the case reed set up (there were a few reed blocks to this engine - think it out for yourselves), the secondary induction tube / plenum chamber in front of the cylinder, that collects and delivers the charge to the rocker cover, thence to a short intake 'header' to the inlet valve(s). Semi / low pressure (well, compared to other supercharging systems) supercharging. Some might remember Dirt Bike having an article about an XR80 engine done by either FMF / PC / whothehellever, and some may give thought to CCMs 'five stroke' project - they are much the same, but later than this Maico. Some wonderful ideas / bikes went with the Maisch family fighting.
Pit Row
Great thread BTW.
Lots of great bikes on there.
In 1996 Tom Moen had approached his KTM boss Rod Bush about the possibility of building a four-stroke for the AMA Supercross series. Bush approved a budget to build three machines for Smail to race. They were one-off specials based on 620 LC4 cranks mated to 400cc piston to produce 538cc. The 1997 AMA Supercross series was the only AMA races that Smail raced the bike in, as he switched to Husaberg for 1998."
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