slap that 88cc together

Went with boring paint in the end, figured everything else is a bit mad, so tone it down.

Needs second coat and lacquer asap, but didn’t turn out that bad considering how much i hate paint prep

Order a very cheap radial master cylinder, wasn’t really surprised when i saw this shitty casting, at least only on the clamp part, the body seems ok. i hope.

VJ21 race fairings, strangely modded road ones, was expecting much more straight forward molds, ejit store sent me a smoked screen after i asked for a plain one. sigh. still rg125 ought to look much slimmer with these clothes on.

Race 88cc, in one piece now, gy6 88cc piston installed, used a 107cc head, of the two i had the 107 had better castings and i have a lumpy long cam for it, head with the smaller chamber used a shorter cam so i gave up on that.

very direct tillotson carb, should work great!

That is of course if i can get the valves to seat.

after some lapping there are still not so good, but alright for testing purposes!

new piston is much bigger then the stock 50(right), and has a lot more compression then a stock 107 (left)

perfect deck height.

107 head on right, you can make out the combustion chamber size difference, plus the extra cooling fins.

some Runner 180 info, gotta build up an electric pump kit, toyota prius inverter pumps are perfect, but finding a switch to turn it on is not cheap, so i’ll probably settle for a switch.

uprate the cbr6 brakes, eventaully.

Rg125f boring paint

Skyteam Ace 125, suspension upgraded via some spacers, 16mm worth.

Easy to get forks out

While it was out, banged on the disc a few times to straighten it, poor thing is a little over worked.

On to the Rg125F, stripped rear shock, we have a

295mm length (c to c), 30mm fork at bottom, 30mm eye on top. m10 bolts.
160mm coil length on shock, 9.9mm diameter metal, 5.5coil 2 dead coils. 70mm outer diameter
175mm length off shock, one end is little smaller, last coil so not calculating that.
closed and ground spring

using an online calculator thats a 8.0kg/mm spring, 2010-13 s1000r shock with lots of cutting of frame is a cheap upgrade, spring is only 8.2 to 8.4, so a little stiffer, but not too much. have to get my hand on one.

Vj21 rear seat (left) vs Rg125F seat, rg125f is fat fuck.

so i had a vj21 in shed, do the plastics fit?

No, but i’m not gonna let that stop me from fitting some, such slimness!

Paint rear swingarm

More painting

Playing with fitment,

 

Repairs

Stick welding ftw?

I should do these updates more often

Well lets be having them updates!

Rg125f first, box of clean bits, the box of dirty bits is quite large..

painted the top yoke a few times. i should not be allowed paint.

filled the dents in the spare tank i got, it’s still low, but IDGAF

Hammerite paint job, laid it on a bit thick and forgot to use a roller so it’s terrible. gotta flat it back and do it better. not properly but better.

Forgot about this, happened a long time back, belted it round with a large hammer, took a photo but i dropped the camera and knocked the battery out as it was writing it. promise i’ll get one next time.

Head, badly in need of modernization, if there is enough meat we can do an angled squish and a bathtub chamber. if not i’ll buy an insert, make a steel cage and 3d print to hold the water in.

 

 

Next!

Lifan monster 120, advertised as a 125 (insert joke about penis size)

we have a 27mm inlet valve on this so an appropriate carb is needed. mikuni DBS28, cheaper to buy a bank of four then one.

ah didn’t need that hi comp piston

is that a rice grain in my engine?

Beautiful

On to the Wifeys Dax.

engine was ripped out for new race engine.

what cruel bastards restrict a 50cc four stroke? this is the second washer we found…

Frame repair.

new chain and sprockers, bit oh cleaning of the wheel too.

de badged! and a new engine, 86cc single speed out of a childs quad.

a spin reveals that a straight pipe 8000+rpm doing 50kmh is not all that much fun.

Stickys!

also much taller, should help with gearing.

that exhaust pipe is dangerous to small birds and single pane windows.

need a pipe, stock is fine, but it have a cat in it and is too short for the new taller engine. chop! grind booger welds, insert rusty crap pipe.

looked well. no idea how it sounds, we still have to fix the loom, it eats cdi boxes, probably the tank rubbed a short into the loom.

Misc:

New race head, actually has a 52mm combustion chamber. huge head off a vintage thingy for scale.

got the arcade cabinet looking tidy, ditched the fancy router and did it manually.

more t-moulding

stickys for my dads skyteam ace 125, stock is so bad.

when you go on hols, take a ferry, and discover an arcade where your mate Stephen Casey has been.

Got a vice! had to clean the paint off the runners under neath before it slid smoothly.

rebuilt my numbpad for the acade, lots of trimming this bit down to get the case to close properly, then glued to the face of the cabinet, works great! can’t decide what buttons do what in the config yet..

rg125f engine destruction

Tis grand! bit of diesel and off we go!

lol nein. got other projects that need attention first, then we’ll spend a bunch and fix that engine right up. and tune it of course.

so the really really boring part

 

yep cleaning and sanding and filling and organizing my spanners. I’M NOT OLD OK!? just had an off day, it was raining.

I did mount the old rg tank at least, like a trophy. 🙂

slinging a SBC like my 8 core odroid into it will be easy, but it’ll need slinky heavy metal hoses to house various cables, gotta have the look right.

Rg125f Disassemble

Literally dug this out on my hols, gotta get a better hobby.

Made it to the trailer, tyres keep air in them!

Engine so not healthy

Tank, yeah that was fucked ten years ago when i put it in that ditch.

Made it to my house!

On the plus side, the exhaust does not have any holes it shouldn’t have!

Piston, well it’s still there..

Total restoration,

horrible isn’t it? not the spider he’s cool.

CDI seems to be one of the good ones. 32900-19d90, well it was quick enough when i did run.

Do i need half this shit back here?

I don’t need all this shit in the airbox

🙁 revg250 34mm carb is dead

So dead.

alrite boss

that was cracked years ago too, lost the head bolt and the vibes cracked it.

this tank is magnificent

Gonna install a PC in to it, of course.

Lighter rear, more may come of, gotta save weight this bitch weight 125KG dry!

I broke no bolts getting to this part, no Suzuki bolts anyway.

This is the only damage i can find after the crash that put this bike into the hedge for ten years, bike is over built.

And we’re stuck, swingarm axle needs heat and a much bigger hammer to move it,

rescued the petrol cap!

Spare part hunt turned up 5 cylinders, at least two of them are 22d0 vj22 cylinders, those should be the best for power.

Many carbs, i think two are 32mm carbs and the rest 34mm, didn’t have time to measure.

GSX600F front wheel, took it off for another project, but might do for this.

GSX600F disc’s, not to my taste but probably the right diameter .

GSX600F calipers also should fit, may fit them because they are smaller/lighter

 

SO many ideas to tune the engine, think i can get a solid 30bhp at the rear wheel, most of the ideas revolve around better head and squish, better cooling the piston so i can run more advance.

will post what i do here, when i decide what i want to do!