Yamaha 701/760 Freestyle/Freeride porting templates
- Thread starter yamanube
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did you hear back?
Thanks - I hadn't heard back but all all good as not in a hiurry at this point.
Let me know when you are ready to ship.
Cheers.
Hola
Sé que este post estuvo en espera por mucho tiempo, pero lo encontré y es súper interesante.
He descargado el YAMANUBEYAMAHAPORTINGTEMPLATE y al comprobar las medidas el ancho del puerto de escape me da 62,1 mm.
Si el diámetro del cilindro es de 81 mm, el ancho máximo sería del 70%, que es de 56,7 mm.
¿Qué ancho tiene el puerto de escape en la plantilla?
Gracias
Sé que este post estuvo en espera por mucho tiempo, pero lo encontré y es súper interesante.
He descargado el YAMANUBEYAMAHAPORTINGTEMPLATE y al comprobar las medidas el ancho del puerto de escape me da 62,1 mm.
Si el diámetro del cilindro es de 81 mm, el ancho máximo sería del 70%, que es de 56,7 mm.
¿Qué ancho tiene el puerto de escape en la plantilla?
Gracias
Hello
I know this post has been on hold for a long time, but I found it and it's super interesting.
I have downloaded the YAMANUBEYAMAHAPORTINGTEMPLATE and when checking the measurements the width of the exhaust port gives me 62.1mm
If the diameter of the cylinder is 81mm, the maximum width would be 70%, which is 56.7 mm.
How wide is the exhaust port in the template?
Thank you
This ^ probably one of my most frequent questions I get.
It depends a bit on what your bore size is but the port width is measured across the chord. These are CAD drafted and designed, I'd have to look back at my drawings but I think I am about 68% bore width at 81mm bore.
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- native idahoan
Not trying to thread jack but if someone is looking for kawi 750 porting templates you can find some info here that are from the XIR race prep booklet from Kawasaki.
Post #17
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Really old jet ski ads and info.
I will start with this Westcoast modification chart for 650 Kawis and I will add from there
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Post #17
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Hello
I put an image of your template and taking the measurements in design program gives me 62.1mm.
If the diameter of the cylinder is 81 mm and the maximum width would be 70%, it gives me 56.7mm.
My doubt is that there is much difference between the two measures.
Thank you and best regards
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Thanks for helping clear this up. I originally had two templates, one for 81-83 and one for 83+ but after looking at how minor the difference was, I opted for just one to simplify things on my end.
Pro Tip, or really amateur hack tip....I've used the same template for a variety of different bore sizes and stroke/port timing combos, just mark a line where I want the top edge and two sides to be and slide the template up down and side to side to mark that part of the port.
A Pro would probably do a more specific shape, the template is pretty conservative with big round corners and even more so if using it on a smaller bore.
But....we're not pros. So this works pretty well.
A Pro would probably do a more specific shape, the template is pretty conservative with big round corners and even more so if using it on a smaller bore.
But....we're not pros. So this works pretty well.