DIY porting

[KTM RACING 559]

About three months ago I "attemped" to port a spare cylinder with a harbor freight dremel kit LOL, i figured I'd post some pics. Let me know what you guys think.

I got a little carried away on that top intake port LOL

 

[B S]

Don't look hat bad
I've seen worse

 

[Blaaster]

Other than the Boysens being a tad too high, you are well on the way to a operational port job.

 

[KTM RACING 559]

Thanks Blaaster! happy to hear that im somewhat on the right trackI:I , i was even thinking about building up some welds on the outside of where the boyesens are at, and then making them a lot bigger. Would larger boyesen ports make a difference? And how does the heighth and positioning of them affect how they work?

 

[Racer51]

the boyesens bother me X2 on what blaster said there a tad high and it looks like the left one is slightly bigger than the right one. if you skip to minute 14 you can see that ken has a very smart tool for drilling boyesens

 

[KTM RACING 559]

Thanks for the link Racer51! That's a great idea to make a jig to guide and position the drill bit.

 

[Racer51]

your very welcome ktm