Well, what I'm doing to my swingarm is cutting the old tube out and welding in a piece of metal from an old ford 9 inch axle shaft that I had a machinist bore to the correct size for the bearings. The stock tube will bend and distort.... the ford 9 inch axle will not!






Those bearings were brand new! The stock setup just sucks!

 

<div class="FTQUOTE"><begin quote>Originally posted by: MMZUKI

I do love a challenge! Already errored. Guy I got " MMZUKI " from must have ran the street alot. Tires had 0 tread. Put 22" on the back last week.</end quote></div>

Oh well, what can you do...

<div class="FTQUOTE"><begin quote> I read the thread on using a piece of an old swing arm to lengthen. Is that " THE WAY "?</end quote></div>

What ever way works. BigMc has pics of his swingarm mod. I was going to do the same sorta thing with mine, only on the other side of the shock. Should be a simple project compared to the a-arm mods.

 

<div class="FTQUOTE"><begin quote>Originally posted by: MMZUKI

Also when I get the big bore ready I was going to put a new rod on my crank, and all new bearings. Good idea? You mentioned sending the crank off. Why? I see another error. My new cobra pipe will also be here tomorrow.</end quote></div>


You have to send off the crank to get a new rod on.... Unless you have the heavy equipment needed to do it yourself. I don't,,, that's for sure. I'm sending mine off to Vince at http://vincescycle.tripod.com/newparts/lt230s.html


Everybody I've talked to says the aftermarket pipes are just too loud. And not sure about any performance increase over the stock one. However, I noticed a big increase taking the bolts out of the muffler.... and its not that loud.... and is free. (actually, I drilled even more holes under there [img]i/expressions/face-icon-small-wink.gif[/img] )

 

I like a little loud. Where I ride there ain't really nobody to complain. ( And my hearing ain't the best these days [img]i/expressions/face-icon-small-happy.gif[/img] ) But the problem is the guy I got my 230 from already gutted the stock exhaust. NO BAFFLES. The bike runs great after 1/4 throttle. Not ehough back pressure I think.
The guy that used to do the machine work on my drag car engines is also a great machinist. He'll love the 9" ford idea. Thanks for the pics. I bought a used jug, head and valve cover on e-bay today to use with my big bore for $41.00. My machinist is itchin to get that little head on his flow bench and " play ".

 

Be sure you read everything this man has to say before you do any porting. http://mototuneusa.com/thanx.htm It will probably take you a couple days to read it all.

I got my big tubes of JB weld from amazon.com a while back. They're sitting on the shelf waiting. [img]i/expressions/face-icon-small-smile.gif[/img] (you'll understand after you read motoman's stuff).

Taking the baffles out really doesn't do much. Its the spark arrestor that adds all the backpressure. I tried to make mine bigger, but it didn't help any. Its still too restrictive.

 

Rear shock mod:

 

Front shock mod:

 

Case saver made from 3/16 steel and 14 tooth sprocket and spring-loaded chain tensioner on right:

 

My beefy sprocket guard:

 

Rod checking: