Stoker motor

[doomedgame]

Well just spent $150 on a stroker kit for my bike will post pictures as I build it

48mm bore lined
4mm+ stroker crank

 

[doomedgame]

Sorry forgot to post link to the kit
https://rover.ebay.com/rover/0/0/0?mpre=https://www.ebay.com/ulk/itm/282789853906

 

[crassius]

post how it works out, I've always liked mzmiami for good parts

 

[doomedgame]

Hilly ride it is

 

[doomedgame]

The kit should be in today will post close up pics this weekend.

 

[doomedgame]

Wow this jug looks good best casting I have seen and powder coated not paint
Just a little finishing on the intake and exhaust to do plan to inlarge the transfer ports some.

 

[doomedgame]

The new reed valve this one is the best bang for the buck right now $45. Works with 32mm or 40mm comes with carbon fiber reeds and like the gt80 easy to setup for larger carb

 

[doomedgame]

The piston will be the hard part with this project the dome is a little different so will have to reshape the dome in the head more then likely sticky sandpaper on the dome of the piston work it in the head by hand maybe.

But on the plus side it's windowed and thinner rings

 

[doomedgame]

Almost forgot the carb 24 mm pkw clone

 

[doomedgame]

Plan on swapping the crank out today and alter the reed for the 24mm carb ( 1 1/4 tube)

 

[doomedgame]

CUT up the new reed setup for the carb

One of the pics is side by side 32mm gt80 the other is the new reed system they look the same from afar but there way diffrent.

 

[doomedgame]

Crank money shot

 

[doomedgame]

old bearing is stuck on the old crank so had to order new barrings went with SKF. This project is on hold till they come in.

 

[crassius]

one can sometimes pass a long drift punch thru hole in journal to hammer bearing off from backside

 

[doomedgame]

one can sometimes pass a long drift punch thru hole in journal to hammer bearing off from backside

2 pound hammer and a lot of notta

 

[crassius]

bummer, seen that a lot - much of the reason I don't recommend splitting the case for non-mechanics

 

[doomedgame]

Well at least it's getting name brand bearings

 

[cannonball2]

Interesting build.
By the add it indicates the piston is a non stocker. Where is the pin located in relation to the stock A/B pistons? I assume the jug is a stock sleeved unit? Do you know which one, gt5 maybe? All this will come into play setting it up. With the larger displacement and the reeds should be a real torque monster.

I have interest in this build as I am about to start a Frankenstein build using the 54mm Stihl piston/cylinder on a 40mm bottom end, and will have to make some of the same mods among others to make it work.

 

[doomedgame]

It's a stock (but ported) jug that has had the cyclinder bored out of it then sleeved I do not know what motor the jug was from as it doesn't matter as its been setup for that stroke.

 

[cannonball2]

Guess we won't really know what it's going to take to accommodate the stroke until you start the build. Jug spacing I am assuming. Between the spacing and the reeds being so far out of the intake crankcase compression will suffer. Consider stuffing the cases. If the piston has clearance to extend out of the jug with out hitting the crank that will help, that's why it's relieved I guess.