ESE's works engine tuner

[andreas]

I appreciate that Muciek.

[41juergen]

for anyone thats cut in boyesen ports on the yami twin. do you bother welding on any reinforcement to the rear outboard cyl ear to prevent cracking ? or its not a concearn ? maybe i should have reinforced that ear when doing all the other welding but i over looked it. now the final machining is done on the top and bottom decks, gasket thickness and cyl height position is sorted out. . even with bolting the cyl to a heat sink im not confident i could weld any reinforcement and not end up with alittle bottom deck distortion. part of me says go for it and it will be fine

I only added some JB weld were I came through the wall, but no welding and it holds since years now...

[ceci]

PhD Thesis (Valencia)
Is there an english version, too?

I have no knowledge of whether it is in English.
Google translate translate pdf

[ceci]

Yes, GasGas are next.

The enduro model will be the same as Husqvarna.
The trial model how will it be?

[AndreasL]

KTM buys 60% of GasGas.

All ideas of why surfs the www at the moment.
Wonder what effect it will have in the end?
GasGas, with only 2 strokes in their lineup , seems to offer quite a descent bike with a really good suspension as stock.
Don’t expect GG to keep the KYB if owned by KTM/WP.

[JanBros]

Frits, here in your FOS data it says the squish angle in the RSA head is 8.17°

if I draw that in solidworks, that's the angle of the tangent line to the piston radius. but wasn't the squish paralel to the piston crown radius ?

and shouldn't the squish radius be 190.7 mm ?

[peewee]

I only added some JB weld were I came through the wall, but no welding and it holds since years now...

im sure it would be ok. i filled in the void with weld so it doesnt break through but i overlooked any type of reinforcement . i suppose maybe it isnt needed

[peewee]

has you guys seen this engine before ? says its aussie invention but i never heard of it

https://motorbikewriter.com/aussie-t...oke-invention/

[husaberg]

has you guys seen this engine before ? says its aussie invention but i never heard of it

https://motorbikewriter.com/aussie-t...oke-invention/

its posted in the odballs thread its been on this one too i think.
https://www.kiwibiker.co.nz/forums/s...and-prototypes

[SwePatrick]

Jan Theil, Frits Overmars, Wobbly.

A question, as i got spaceproblems, is it a big loss shaping a pipe somewhat oval?
I need clearance so i can have some suspensiontravel left.

[jamathi]

Jan Theil, Frits Overmars, Wobbly.

A question, as i got spaceproblems, is it a big loss shaping a pipe somewhat oval?
I need clearance so i can have some suspensiontravel left.

MZ once used them, but they cracked....

[guyhockley]

Or you could simply open the injector, and run it at 100% duty cycle, at the same time as the inlet and have the fuel flow controlled by an adjustable rising rate fuel pressure regulator. In other words the injector would be an on/off tap and the adjustable fuel pressure used to control fuel flow.

This bloke has hacked a pressure regulator to give a larger range of adjustment for alternative fuels.
It is one of those weird engines with unported cylinder liners, sorry...

https://courseware.ee.calpoly.edu/~a...nolMotorcycle/

[lodgernz]

Jan Theil, Frits Overmars, Wobbly.

A question, as i got spaceproblems, is it a big loss shaping a pipe somewhat oval?
I need clearance so i can have some suspensiontravel left.

http://www.pit-lane.biz/t6246p550-gp...vermars-part-5

Go to the bottom of page 23. You'll have to login to see the images

[husaberg]

http://www.pit-lane.biz/t6246p550-gp...vermars-part-5

Go to the bottom of page 23. You'll have to login to see the images

He could also see what happened with the std ovalised TZ750 pipes.

[Niels Abildgaard]

http://www.pit-lane.biz/t6246p550-gp...vermars-part-5

Go to the bottom of page 23. You'll have to login to see the images

Iam wondering why exhaust pipes are round or sligthly oval.
The exhust jet during blowdown is some kind of rectangular and it will not be more difficult to edge weld four funny looking strips(methinks)?