porting

[mud runner]

Is he drilling boysen ports in it?

I dident ask him to but I may send him a pm and ask him if he can

 

[mud runner]

he said when it gets there he is gonna see what he can do about the boysen ports

 

[Arnold]

Here is a link to some pics for mud runners port job that I'm doing. I've only got about 3 hours into it so far and its coming along nicely.
Mobile Photobucket

 

[Larry's Shee]

​

Looking good so far I:I

Should get a stock base gasket and match the ports to it. Did you open the ex to match inside dia of the gasket?

I tapered the transfers a little steeper when I did mine, doesn't neck down as quickly.

 

[Arnold]

I did find an OEM base gasket so I will be port matching it. I still have some work to do yet. I am not completely done with the transfers or the exhaust port. Just showing the progress as I go n I did open the exhaust to match the gasket.

 

[mud runner]

well the cylinder came in today and I cant wait to run it ill have pics of it in a lil bit

 

[mud runner]

 

[Arnold]

Wow two days early, Idk how ups is still in business cause they charge more and take forever to ship.

 

[mud runner]

Wow two days early, Idk how ups is still in business cause they charge more and take forever to ship.

ya did you ship it through priority mail

 

[Arnold]

I sent it through the post office. Last time I shipped something ups it took almost three weeks to get there and it cost me 38.00 where through the post office it was about 15.00

 

[Arnold]

ya did you ship it through priority mail

I don't remember if I sent it priority mail or not but the date of arrival that they told me was on the 23rd

 

[Blaaster]

Do I notice some imperfections that may cause eddy currents on the intake.

They are very noticeable in pic three.

 

[mud runner]

Do I notice some imperfections that may cause eddy currents on the intake.

They are very noticeable in pic three.

I cant see the imperfections in the intake

 

[Blaaster]

The intake tract should be smooth , without blemishes but not highly polished.

The windows look like they have irregular edges, and the upper edges seem to have some pock marks.

The surface should be uniformly smooth (to aid air flow) with a matt finish (to hinder fuel beading).

 

[mud runner]

im gonna take the cylinder to the shop hopefully tomorrow and have it honed so hopefully next week ill have all of the heat cycles done and be riding it

 

[mud runner]

ok got my cylinder back today and im surprised it only cost 5 bucks to get it honed should be running tomorrow I plan on taking it to the shop at our school and putting it tighter any ideas on jetting

 

[Racer51]

what mods do you got into it?

 

[mud runner]

what mods do you got into it?

pre mix 25/1 no air box lid stock filter dg pipe and silencer Arnolds porting boysen duel stage reeds

 

[Blaaster]

#290 - #300 depending on temp and elevation.

And of course you know the rule, plug chop to confirm

 

[mud runner]

ok ill start off with a 310 and go from there better to start rich than lean