2003LimitedBanshee

most all naturally aspirated internal combustion engines have a tendency to follow this trend... :wink:

Going to the dunes in just a couple weeks for the first real ride to speak of...

I know that guy... :biggrin: But, yes, 700R a-arms are the same as the 450 arms. Case of beer is a better price than anything I've worked before!

Easiest place is prob the Yamaha shop, I think I paid like 1.95 a bolt, you'll need 4 of course. Might be able to find something if you Google Yamaha OEM parts?

No you don't have to run the 450 calipers. I thought I had mentioned it, but you WILL have to pickup some YFZ450 caliper bolts. With the aluminum spindle, the caliper mounting bracket surface is a bit thicker and the stock bolts won't reach.

I'll take those at $120 shipped including Paypal. PM me and let me know. I work until 10 PM PST tonight, so I prob won't be able to respond until then, but I want them and pay fast. No, "I'll get you money on Friday" stuff here...

No, I totally agree with you in most regards. I've done all of my tuning prior just by looking at plugs and paying close attention when I was riding. I can tell you however, my 50.6HP pass sounded the same as the 55.7HP pass. However, when you looked at the curves, there was a huge difference. Sorry, I'll stop now, I don't want to hijack the thread.

The HJR dune ported 4 mill dyno'd at 60HP? That was more than yours or you stomped him? Do you know what his setup was? I just dyno'd my T5 bike that I ported at 55.7HP without tuning and too big 20cc domes (instead of the 18's that just showed up from David @ NOSS). I hear great stuff from a lot of people about Kevin's work!

Okay, so I know the intakes are impressive looking, but the real work is in the exhaust and the transfers. Take some pics of those and post them up. That tells worlds more than anything else...

Bump, buy pipes! I got mine out of the same series as MOFO, agree on fast shipping and great prices.

Another bump for BoostedRex. Great prices on pipes, fast/reasonable shipping! I will hopefully be able to play with them in the next week. Thanks! - Brian

Yeah, I was really hoping break into the 60's, but maybe that is a little ambitious for a first time DIY port work? I don't really think I'll go down the cub road; I prefer the stock look. I'd love to keep tweaking, porting and tuning to try and get into the high 60's or even 70's with diff carbs, pipes etc. My CPI's just showed up from BoostedRex, man are those things FAT!!! I'm actually looking at picking up a set of OKO 30's just as a test of the bigger carbs. I'm going to be working on your cylinders for quite a while tomorrow night. Should be able to finish up the intakes and the transfers. Still waiting on my cases so that I can set the port timings... Oh and I have to get some money out to mopar for a spare crank, I didn't forget mopar...

Peak HP without ANY jetting adjustments at all when it was on the dyno was 55.7HP. My initial pulls only made 50.6HP and 31.8 ft/lb of torque. BUT, the filter was disguisting dirty. I was getting really dejected, but the dyno owner/operator recommended we pull the outerwear and make one final pull. That's when it made the 55.7 HP. 5.1 HP loss from the freakin' outerwear!!!!! The filter was disguisting underneath the outerwear still. So, with swapping out the domes, cleaning the filter and fine tuning the jetting, I'm pretty confident I should push the 60HP envelope hard. So, back to the drawing board for now. I don't feel ashamed of the numbers it put down, but I'm hungry for more! Next cylinders should make more and will have much more aggressive timings. Darthwall, after this run, I'm pretty confident we should be able to put together a hard running combo. Did you recognize some of the latest pics? :biggrin:

Good guesses... Keep them coming, I'll drop the numbers here in a few. Are you guys hedging the numbers down figuring it's rook doing the port work? Or would these be numbers you'd be happy with? I'm expecting a good jump when I get the right domes in there and clean the filter like it should have been. Had to have my dog put down this AM literally just before I pulled the bike, so didn't have a lot of motivation to get everything prepped properly...

So the results are in, any guesses??? A couple things, NOSS head 20cc domes (read: too big) VF3's, stock carbs (no TORS), Toomey air filter w/Outerwear (embarassingly dirty), Timing set at +4*, T5's (repacked about 3 months ago), air temp 65*, elevation 1100', RAIN (approx 76% humidity at time of runs), Golden Spectro mixed at 48:1 with Trick 116, stock knobbies (approx 60% left) and my port work. I'm not overwhelmed by my results and I can't remember what people say it should turn, so bring on the guesses. I'm not trying to say these numbers are going to blow anyone away, just posting for the learning benefit. I'm also not saying that a dyno is an absolute, but I can say that after my first experience with a dyno it would seem to be a GREAT tool!

Have fun and let us know how everything works out!

We all have one or more times, no matter how many times you've wrenched. Keep in mind that picture is from the cylinder side. But, more or less it runs a straight line from the choke pull between the two carbs. As we've said, this sounds highly suspect. Good luck!

Did you custom order your jet pack with different size mains? From what I saw, his pre-arranged packs on eBay (saw wolfpack's listings) didn't come with the main sizes that people seem to usually end up in on the OKO/PWK's? I think I'm going to call CPW today to see if they have any stateside already? I'm already TORS-less, so that cable should work fine. So you were $150 then for the carbs and express shipping, which looks tobe less than a week? That isn't bad at all. I'll probably source the jets somewhere else, unless he did a custom arrangement for you in the right range? If I remember right, the packs I saw topped out right about where most people recommended you start. BUT, I'm def not a PWK guy at this point, no very little at the most about them.

It will be a small black tube that runs from the carb with the choke pull on it (left carb as sitting on the bike) to the right carb, without the choke pull. This has gotten the best of us time and again. I consider myself a pretty good wrencher when it comes to it, but all of us forget. After doing some carb adjustments after porting my cylinders recently, I kicked for probably 2-3 minutes off and on (bike never takes more than three) and it would barely start. You guessed... choke tube. Happens to all of us, repeatedly, you just get in a rush. Since you just adjusted the needles, there wouldn't really have been a reason to pull the carbs completely, but did you? Did you make main adjustments? Another overlooked item is making sure you got the float bowls back on the correct carb, if you had them off? As with others, my guess is going to be choke tube, but if you didn't take the carbs off, which for just a needle change you didn't really have to, then we're back to square one. As savage said, nothing major here, something small and in the end retarded. As long as you didn't drop or hammer on anything right?

I've got a set of CPI's coming tomorrow from BoostedRex and he recommended I go up 4 main sizes from my current jetting. However, I am running T5's currently which seem to like more fuel than the FMF's (SST's are about the closest), so I would guess that you are going to be more than that. I would guess, depending on your elevation, that you are probably right around 300 right now? 290-310? So with that, based on the recommendation given to me, I would put you somewhere around 340. I would buy at a minimum, a size on either side of that. At a couple dollars a jet, my opinion is that is far cheaper than leaning it out, or looking like the two stroke guys that give us a bad rep and fouling plugs all day.

What has anyone found out here? I emailed Carb Parts Warehouse the other day, but I haven't heard anything yet. I think I am going to call them tomorrow. I've resisted bigger carbs up to this point, but I'm getting a set of CPI's in a couple days, so I figured I should consider stepping up. These seem like a very economical way to test out bigger carbs without breaking the bank. I'm interested to hear anyone's experiences. Thanks - Brian

BoostedRex is also hooking me up. I've got a set of SB inframes coming any day now!! 225, I would think bigger carbs could help. I've been a long time believer that many people over-carb their bikes, but with my porting and now the CPI's I'm going to be pushing 400 mains. I'm thinking at that point, if I'm up to needing almost 400's, bigger carbs could be justified. I'm trying to find out about some OKO's, sound like an economical way to break in to the bigger carb world. Also, hope you enjoy your a-arms!

So am I interpreting this to say that with race fuel you won't get plug coloration? Or are you simply saying you won't get the quick ring on a set of new plugs?

Do not forget to soak the fibers over night before though! I actually have never not soaked them, just always been told and heard to, so... If you don't and then figure out you need to, it's more like a day plus...

Really?!?! Holy crap! I'm at 360's right now on the new wiseco's after I did my porting. So you are thinking like 400's then? Bump for awesome deals!!!!