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

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



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







figuired i would let everyone know i got the tm28 dialed in. 20 pilot/ 280 main, 5L1 needle with the clip all the way at the bottom. engine runs good, i feel the main is a tad rich but once i get more seat time i will dial it in.</end quote></div>







Sounds about right. Sure the 20 isn't too big? Are you running a KN filter?</end quote></div> I AM RUNNING A POD STYLE AIR FILTER. WITH THE 20 PILOT THERE IS NO OFF IDLE BOG AT ALL, WITH THE 15 PILOT I COULD NOT GET RID OF THE OFF IDLE BOG.</end quote></div>

POD style? Not sure what that is. [img]i/expressions/face-icon-small-confused.gif[/img]

Cool that you got it dialed in right though. [img]i/expressions/beer.gif[/img]

 

http://www.hondatrailbikes.com...pup_image.php?pID=949, THESE ARE THE FILTERS I AM USING ON THE TM28

 

This may be a stupid thing to say (that never stoped me though) but ,given the exact same size and shape piston, the one with the valve clearencing would have a lower compression, wouldnt it? Stands to reason that the manufacture can control the advertised compression ratio this way. <div class="FTQUOTE"><begin quote>Originally posted by: JustRandy

<div class="FTQUOTE"><begin quote>Originally posted by: gforce34



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







<div class="FTQUOTE"><begin quote>Originally posted by: gforce34















I bought my caliper and feeler gauge today and to test out the caliper I measured the piston that I pulled out. It was 67.35mm, I'm guessing it was like yours Randy not a 66.00mm but a 67.50mm. Also looking at the photos in the clymer repair manual I don't see valve reliefs cut in the head of the pistons they show in the photos but mine has valve reliefs.</end quote></div>















You have to measure the skirts, not the top or the sides.</end quote></div>











I Measured the skirt and exactly 67.50mm. Are there only a certain brand piston that has valve reliefs cut in them?</end quote></div>



I don't know.... I think its up to the manufacturers if they want to put them in. I always like to see them though. I feel a little safer that way. Apparently, some wisecos have them n some don't. My lakota wiseco has them and it says on the side of the box 8.5:1. WTF? Doesn't make any sense why a low comp piston has reliefs and a high comp doesn't.</end quote></div>

 

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

HELLLLLLLLO! COME IN!! Break, Break, Break,

Im reverting to my past life, (running skip on the citizen band) Anybody got a copy?........[img][/img]

Not so shiny, shiny, use for a mirrior (J.R.) shiny, dont you love opinion's?</end quote></div>

I swear it looks and feels polished.

 

BigMC you're correct, given the same dome, etc. but that's really gettin down to the gnat's azz difference in displacement.

i figure it's got to have something to do with the cut of the cam creating a higher and longer duration lift for the valve.
i imagine wiseco makes the hi comp piston to be able to run in everything from mild to wild when it comes to cam profiles

 

Measured my clutch friction plates and glad the new ones are coming in any day now... clymer manual says minimum wear of 2.4mm and measured 4 different areas on 3 of the 6 plates and averaged around 1.95mm no wonder I was slipping.

 

Hey P.G. I pulled mt 230 down this a.m. and tore the carb down to get at the jets. Its been so long that I couldnt remember what I was runnen. I dont know if it makes a diff or not but, if any one wants, I can send them ALL the specs of my White Brothers Mikuni 28mm Quad-sport 230 flat slide carb kit. [img]i/expressions/face-icon-small-wink.gif[/img]

 

Damn!! in a picnh (with all the wear in that clutch pack) you could toss on another fiber and steel and make it last another ride almost.<div class="FTQUOTE"><begin quote>Originally posted by: gforce34

Measured my clutch friction plates and glad the new ones are coming in any day now... clymer manual says minimum wear of 2.4mm and measured 4 different areas on 3 of the 6 plates and averaged around 1.95mm no wonder I was slipping.</end quote></div>

 

lol yeah if only my cylinder wasn't somewhere in colorado being bored/resleeved and my head wasn't at the machinist having a milling/valve job and me putting in a new timing chain w/ the stage 2 web cam and etc etc [img]i/expressions/face-icon-small-tongue.gif[/img] Once the engines put together I've got to refocus on aquiring 1987-92 +2 a-arms....omg it's just never going to end[img]i/expressions/face-icon-small-smile.gif[/img]

 

I forgot to mention that is 250R a-arms.