Bucket development: A few questions for the wise ones

[F5 Dave]

Phil Bird? built that didn't he?

I ran RD50 pistons in the MB50, but there are two models & you want the 1.2mm ringed version, not the 1.5. Also the ring pegs need to be moved & you need to trim the bottom of the pistons on MB rods, but the GT ones probably allow you to keep them as it. Most important is you need to run thrust washers on the small end pin as the pistons are wider across the small end bearing.


Sitting around so long you'll need to redo the crank, or at least replace the Big end bearings & polish the rods. Any minor corrosion will end that crank as soon as you start asking it to do serious revs, which is the whole point of the twin.

[Bert]

Attachment 264305finely building myself a bike . it has a 100 twin in it but made around putting other engines like tf100's and what ever. started on a swing arm as well

full Crankcase reed has been welded into it . most the engine was done when l brought it l just ported the engine and now making some new heads for it. l need to do somthing about the water pump ( maybe a eletric one) if l can't fined a good place to run it of. pistons have been a problem but bert may have found me some. they keeped flaking at the top of the piston?

whoooooo; looks very cool in the flesh; as well as a few other very interesting projects underway...

Cheers for a good day in the workshop (and letting me use the tool & toys). much more fun than sitting in meetings or looking at Dots or numbers on a screen

[crazy man]

did not take you long to get on here bert , you better have the fire going

[mossy1200]

http://www.trademe.co.nz/Browse/List...x?id=479843304

2 stroke or not 2 stroke. That is the carpet cleaners question. Would this be a better engine than a xl125 crank xl185bore xr200 head to work with?

[Henk]

One look at the head says two stroke, any good? No idea

[mossy1200]

One look at the head says two stroke, any good? No idea

yep twin 125 2smoke 14.7 hp stock i wonder how cheap 20hp would be. Might only take carb and good pipes. put the motor into mc17 instead of spend on the xl combo motor but i do like the way the xl exaust etc is done

[crazy man]

http://www.trademe.co.nz/Browse/List...x?id=479843304

2 stroke or not 2 stroke. That is the carpet cleaners question. Would this be a better engine than a xl125 crank xl185bore xr200 head to work with?

l want it

[cotswold]

http://www.trademe.co.nz/Browse/List...x?id=479843304

2 stroke or not 2 stroke. That is the carpet cleaners question. Would this be a better engine than a xl125 crank xl185bore xr200 head to work with?

It's a gt125 suzuki 2 stroke twin in a french maids outfit, they run 2 x 19mm carbs so would have to either put a single 24 or a pair of 12's on it, they were plenty fast in their day ( around 80mph ) which would smoke the xl.
I also have it on my watch list, thought no one would see it hidden in parts other.
Not sure it would make a good bucket motor, there is a gp125 on t/m that would though.

[Henk]

I've got $10 that says Cotswold won't turn up at the next Mt Welly meet in a French maid outfit.

[F5 Dave]

A pair of 12s huh? another person who can't do the math. we've been over this before. area of two 12s is less than a 24.

[mossy1200]

It's a gt125 suzuki 2 stroke twin in a french maids outfit, they run 2 x 19mm carbs so would have to either put a single 24 or a pair of 12's on it, they were plenty fast in their day ( around 80mph ) which would smoke the xl.
I also have it on my watch list, thought no one would see it hidden in parts other.
Not sure it would make a good bucket motor, there is a gp125 on t/m that would though.

I just relised straight shipping stopped their service last June.
They used to have a drop off bike service and they sent once and week for about $40.00

[mossy1200]

A pair of 12s huh? another person who can't do the math. we've been over this before. area of two 12s is less than a 24.

looks like they bang 180 degree out so a 24mm carb feeding both would be the way?

[cotswold]

I've got $10 that says Cotswold won't turn up at the next Mt Welly meet in a French maid outfit.

When do i ever turn up??

[cotswold]

A pair of 12s huh? another person who can't do the math. we've been over this before. area of two 12s is less than a 24.

Oh you are so picky, I don't do math but I am guessing 2 x 19's may be a little large ??

How do you work out the area

[mossy1200]

2 17mm flatslides would do total area same as one 24mm