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

I AM JUST TRYING TO SHARE WHAT INFO I HAVE LEARNED IN THE LAST YEAR TO MAKE "YOUR" BIKES A TAD FASTER. RANDY JUMPED ON MY SHI$ SOON AFTER I POSTED THIS INFO. WE (OUR RACE TEAM) HAS SPEND THE LAST YEAR WORKING ON MAKING THESE ENGINES COMPETITIVE. JUST SO YOU KNOW RANDY THE 5L1 NEEDLE IS MOSTLY USED FOR METHONAL APPLICATIONS. WHICH MEANS IT'S SUPER RICH. I SAID I HAD THE TM28 PRETTY MUCH DIALED IN AT ONE POINT THEN SWITCHED TO THE TM28-1 AND SAW HUGE IMPROVEMENTS. YOU GUYS LEFT THAT PART OUT. JUST TRIED TO HELP AND SOMEONE CHIMES IN THINKING THEY KNOW MORE. I'M DONE</end quote></div>

I'm not jumping your ****! But if you make an *** out of yourself, there will always be someone to ride you... I can't help that.

The 5L1 is exactly the same as the needle that came stock on the 250S quad. Didn't know the 250S was a methanol quad. [img]i/expressions/face-icon-small-disgusted.gif[/img]

Look, I agree the TM28-1 is a good carb. Could be better than the TM28 because of the pump and velocity stack. Is it leaps and bounds better than the TM28???? I doubt it. Is it enough better to win a race? Maybe. Is it enough better that I'm going to scrap my carb and run out and buy one? No.

But I am glad you posted. Its good to learn new things. [img]i/expressions/beer.gif[/img]

 

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

HERE YA GO 190CC 49 STROKE 70MM BORE TM28-1/#213 WEB CAM 32/26 VALVES

</end quote></div>

That's a nice looking curve, but I'm not sure its anything to write home about. The stock 215cc bayou engine puts out 17 at 7500rpm (as stated right on kawasaki's website). All you have to do is put a bigger carb than a 24mm on and you'll be up in the 20's at 9000 or 10,000 with almost no work at all. I don't see the big deal. Now if you were up in the 30's, then I'd get excited.

Another issue I have is the engine you're running has a 49mm stroke and a 70mm bore! That engine is NOTHING like a 230 (67mm stroke and 66mm bore). That is more like a 250x or mojave (74mm bore and 57mm stroke) and is meant to be revved out. So, it wouldn't surprise me that you'd get high peak hp numbers at high rpms.

Bore/Stroke ratio:

190cc 70/49 = 1.43
250cc 74/57 = 1.3
230cc 66/67 = .985

The bigger the number, the higher the redline.

 

I apologize to all I may have offended.
I tend to go over the top a little..
Very impressive #'s hack...


Can't we all just get along?[img]i/expressions/face-icon-small-wink.gif[/img][img]i/expressions/beer.gif[/img]

 

<div class="FTQUOTE"><begin quote>Originally posted by: PoolGod230


Can't we all just get along?[img][/img][img][/img]</end quote></div>

I hope so.... I usually look forward to a email notification from this thread. [img]i/expressions/beer.gif[/img]

 

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

HERE YA GO 190CC 49 STROKE 70MM BORE TM28-1/#213 WEB CAM 32/26 VALVES

</end quote></div>

Um, Mr. Hack could you please tell me how that pump carb actually operates?
As you and I know, I am a mechanical idiot, so in laymans terms, what makes it go? Is it like a power jet or dial a jet, that brings fuel up from the bowl at the above idle speeds?

Truly, thank you in advance for educating me. Being the tool I am, I thought pump carbs, were like throttlebody injection or something like that.[img]i/expressions/face-icon-small-blush.gif[/img] Gosh, I am stupid.......

Once again, so sorry for for coming across like a jerk. I look forward to learning from your experience...

 

well i got the jb weld to work today... i dont know how well it will hold up but...hey so far still only 5.00 spent on this quad.

 

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

well i got the jb weld to work today... i dont know how well it will hold up but...hey so far still only 5.00 spent on this quad.</end quote></div>


All that comes up on that link is like german ebay????

$5.00 on a quad is badass!! Mine was free, till I started messin with it! [img]i/expressions/face-icon-small-happy.gif[/img]

 

yeah i took the link down... there is alt 230 for sale on ebay for 650.. with a lt185

mine was basically free too. now i have to buy some parts to get it back to operational.

 

So what does the stage 1 webcam do for the wheeler's performance? I'm not huge on the idea of boring my motor out until I have to. Is it worth the $118 and is there anywhere you can get it for less?

 

Its more than 118 because you have to get the rockers and springs. Well, you don't absolutely "have" to, but you really should. Webcams are hard-welded and will eat your stock rockers... Or so they say. And you really should get new springs to make sure your valves are closing fast enough. As a matter of fact, I'd probably get the springs before I'd get the cam! 20 year old springs simply have to be weak. If you spend a lot of time in the higher rpms, you need the best springs money can buy.

You might try a megacycle cam. I think they offer a billet cam that you can use with your stock rockers. It has higher lift than the webcam and a different duration. I don't know which one is better.

Stay away from hotcams.

One thing I don't like about webcams is the intake and exhaust durations are the same. Its known as a "square cam". In automotive engines they say square cams are used for things like NASCAR racing where you drive in circles at a near constant speed. Everything else you get a non-square cam. According to Lori, the owner of webcams, they're square mainly because they've never noticed a difference and why go thru all the trouble of grinding two profiles when it doesn't matter? But Crane, Isky, Compcams, and megacycle still use extra time and effort grinding non-square cams. Do they know something? Or are the stupid? I have no idea... Still waiting on someone to buy all the cams and do a comparison. [img]i/expressions/face-icon-small-happy.gif[/img]