trying to figure out just what I have

[chetgoff]

ok guys so i pulled the head to try and determine what it is exactly that i have. I miked the cylinders and i'm getting 64mm can't read the top of pistons due to build up. the carbs are 35 mm and the head looks to be milled. i put my calipers on where the bolt would sit and the other end on the head and i'm getting 21.34 mm not sure what a stock one is. i also put piston to the bottom and measured with a tape measure and i'm getting 2inches. not sure how acurate this is but don't know how to measure otherwise. i need to pull carbs and look at ports but the exhaust looks to be ported. will post pics of the head later. let me know what ya think.

[chetgoff]

[chetgoff]

 

 

 

 

 

 

[Wildcardracing]

Your head is milled and the cylinders are ported...for what it's hard to say. Post up some measurements from the roof of the exhaust and transfer ports to the cylinder deck and I can give you some durations and an idea what they are ported for

[chetgoff]

what do you mean by cylinder deck. the top or bottom. new at the banshee world and just learning.

[chetgoff]

also would I gain from goint to different reeds and what is the purpose of the reed space. If I go to a billet intake would i still use the reed spacer?

[Wildcardracing]

Measurements need to be from the top (deck). Also measure from the bottom (base) to the deck, stock is 4.035". A good set of reeds will yeild a noticable gain in throttle response and have the ability to flow more air to support more horse power. As far as the spacer, you should only run them if needed to clear bigger carbs over the clutch arm. Most of the billet intakes have the spacer built into their dimensions so you shouldn't need spacers to clear your carbs with them.

[chetgoff]

ok so i took some measurements. I measured the amount the head was milled and i'm getting 2mm also TOP of exhaust port to deck is 28.5 mm

also when i measure with piston all the way down to deck i'm getting 2.07 on 1 side and 2..08. the pistons say 513 on top with some writing inbetween and then6450 so i'm assuming it is 64.5 mm piston.. I need to take more measurment for the porting i'm sure just wanted to put head back on and do a compression test. can you tell me where i should be on compression and also why would my rod not be even measuring to stock?