Flash 3.26

[Bear45-70]

Here you go; the TC-2 Thermocouple Temperature Display and only $240 plus thermocouples at $35 to $50 each.

Half way down the page.

http://www.craggyaero.com/MaxiSingles.htm

[Wheelman-111]

Greetings:

Great gauge, but a bit steep! Unsure of all-weather capability on scooter bars, too. Maybe for Father's day...

Fine-tuning for off-idle blubbers and off-throttle heat spike to 350 on Nikasil brought me back to 25 Pilot, mid-position needle, 165 main. Ran better, not perfect but PGLong is maybe hard to tune for low-end linearity.

Maxed at 58.5 riding flat road with a dry-cleaning bag slung across my shoulder. The Nikasil may not be the most powerful bore out there, but it sure is torquey and forgiving. Variator tuning gives ~45 MPH @ ~7000 RPM. Durable too.

Blew through most of a 1.3-gallon tank in 50 miles though.

[Wheelman-111]

Greetings:

Through the 60-MPH "Barrier", I mean:

With about 1200 miles logged using this stock crankshaft and the Nikasil 49mm/78cc bore. Fine-tuning the Mikuni TM24 and variator rollers, down to about 38 grams, and removing impediments to speed like tires rubbing, clothes flapping...
This was the second week in a row where weather looked promising and my Faith in reliable running led me to make the 14-mile trip on the backroads to my Thursday gig. Arrived in my Danskin Leotard with ears duct-taped back, but there it is. Over 60, finally, with both mirrors in riding position.

Temps at WOT stable at about 325, rise to 375 when the throttle's snapped shut Nikasil doesn't seem to mind. Running Stock pump with 60:1 premix in the tank. Interestingly my TinyTach displayed "130" at that speed. I'm guessing it means 10,130 RPM, but who knows? Mouse?

Yes it was downwind. What speed boasts are claimed to be UPwind?

[bradthreee]

I suspect the Wild Lion showed up...

[Wheelman-111]

Greetings:

Nope, no Wild Lion yet at 25 days since paid. The results depicted were using a PG Long, which has become a bit obnoxiously LOUD, and although its top end performance is above reproach, it is hard to tune for clean carburetion down low.

The Nikasil 49mm/78cc bore continues to impress in terms of performance and forgiving reliability.

[turtle13]

wait so somebody else is running the wild lion now besides me? argh... i thought i was going to be the only one... atleast for a while.
edit: my pipe took awhile too, but not that long, but for the price i paid i didnt mind...

[Wheelman-111]

Greetings:

Ah, but you paid more than I did! O'course, you got your pipe! I can't even get them to respond to my pestering eBay E-Mails. I'd really like to see what it performs like with the Wild Lion adorning the right flank.

Here's Flash III (specs below):

Those are Metropolitan rims and tubeless tires. The centerstand had to be modified to reach the ground, maybe a bit too long. My TinyTach is visible below the handlebars. The PG Long is getting louder, as correctly predicted by someone here...

Just at 1300 miles on the frame - my commutes are very short and the opportunities for longer rides are very limited around Deepinnaharta. The stock crank and cases are all that remain of the original SR engine. Nikasil is now running very clean with the Mikuni TM 24 (22.5 Pilot and 165 Main) on a modified CT intake. Last GPS touched 62.5 MPH, mirrors on, and Wheelman don't tuck. Yes, downwind, but no hills here in Deepinnaharta.

Quick enough that I'm wondering when/if I'll ever get to install Flash 4.1 once all the parts arrive...

[turtle13]

Greetings:

Ah, but you paid more than I did! O'course, you got your pipe! I can't even get them to respond to my pestering eBay E-Mails. I'd really like to see what it performs like with the Wild Lion adorning the right flank.

touche'! however yours will go on an engine that the pipe was designed for... so far it has worked great for me though. it has been a little to wet here in KC recently to really put it to the test.

[evilone]

Curious what the wild lion looks like, like an Arrow?

nevermind, i saw it in the turtle13 thread.

[Wheelman-111]

Greetings:

What's your setup, Turtle? And what happened to those "Voluptuous Curves"?

[turtle13]

Greetings:

What's your setup, Turtle? And what happened to those "Voluptuous Curves"?

90 jet with stock air box
ported and polished stock aero jug
o-ringed head to raise compression
keli vari with an SEF ramp thanks to yours truly with 7g rollers (tempted to get a ruckus vari though)
and the modified wild lion pipe
in my setup the pipe comes in a little over half way through the power band. i suspect when i finally go big bore, or when i regear with the 10:1s that one day i will track down (hopefully VT cycles comes through for me!) it will suit it better... can cruise at 35 at about 1/3-1/2 throttle now, tops at 48 with stock gears.

as for the curves... been hitting up the gym more often with the fiance since our wedding is inching nearer, so the curves are no more. but they may just return after the wedding...

[Wheelman-111]

Greetings:

Ah the things we do for love, like give up that second chocolate Eclair. Yikes!

With Flash III routinely playing hide-and-seek with the speedometer needle despite the oversized front tire, I've been looking for ways to perk up take-off. Despite the ZX rear tranny and 669 belt, it's been averse to wheelies, and in fact the 0-5 has been almost embarassing, tho' not as bad as F2 with its Malossi 7.8:1s.

Turns out my Polini clutch came with 2 sets of springs. The "regular" ones (1.6mm thick) were adjusted pretty tight, and still engagement nibbled at 4500 RPM. This left about 2K RPM of over-rich low-end carburetion to struggle through to get to 6500, where the Nikasil began to make some actual power. I even installed my "Free" Kymco clutch (came with ZX pulleys...) to see how it'd run. Turns out that it engages even lower - like ~3900 - although more firmly than the Polini. Still underwhelming 0-5 performance.

I had set aside the thicker 1.8mm Polini "racing" springs for some reason, after trying them on Aero Flash 2 and deciding they engaged way too late. Turns out they're just what the Doctor ordered for the Nik with the PG pipe and MikuniUni setup. Now engaging nibbles at 5K and completed at around 6, whereupon F3 just rears up and Scoots. Decent take-off and over 60 on top. Happy day!

Now preparing to screw it all up and reinstall resurrected Flash 4.1...

[sanjuro]

Geez, your bike is looking mint with those Met rims. If you want your low end back, why don't you install 9.71:1 gears instead and sacrifice a little topend?

[Wheelman-111]

Greetings:

Finally got around to installing the OKO 28/30mm see-through carb with a couple of issues.

1: I HATE changing throttle cables. (Yes, ye Nattering Nabobs of No-Pumpitude, I went single-stranded. For now I've Zip-Tied the pump wide open. With Steffen's data confirming 50:1 produced at WOT, adding my 70:1 tank premix gets to 29:1 oil ratio for now. Close enough.) I'll burn the 2 gallons I have before going to 32:1. Turn your head to the left now:

See the yeller cable? I took the opportunity to better route the wires for my relay and reposition my Blaster horn to a better spot under the front cover. Hope to find a small-enough all-in-one air horn soon.
2. The yeller cable was just barely long enough to hook to the slide, even with all the adjustors set to minimum. I even removed the locknut under the cable socket at the top of the carb to gain that last 1.5mm.
3. Even with the cable tight, there's not enough travel at the twist-grip to open it to its full gaping 30mm tall maw. It hangs down 2 or 3 mm from true WOT. Not sure it matters enough, but I may have to modify the twist grip somehow. Suggestions welcome?

Good news is that it started and idled well with a #52 Pilot and 138 Main Jet, a starting point suggested by Bakaracer (Thanks, Dawg!) for my mini-stroker. It felt about as strong as the Mikuni, maybe a bit softer, but too close to call.

Bad news is that it's not as clean as I had the Mikuni TM24 running. It might be the extra oil (compared to the throttle-operated pump) in the low end, or it may just be a bit fat. Temps were comparable to what I was getting with the Mik - around 275-300 at WOT but I didn't see any off-throttle heat spike at all. (There was still a little one with the Mikuni @22.5/165.) I'll check a new plug after I burn a few more ounces of gas tonight and go from there.

[bakaracer]

Hey wheel use that jet setting as a starting point.what do you have the needle clip at?