Clutch Tunning.

DorkoElite303 · Post by **DorkoElite303** » Thu Sep 04, 2008 4:01 am

So....I got the 7.5:1 gears in with all other good stuff.

I want to know what everyone else is using for their clutch set up.
I'm talking about center torque spring and clutch springs.

Which is giving you guys the better acceleration and that wheelie popping fun?

Right now I'm using the blue center spring(2000rpm) and the yellow clutch springs( ????rpm).

Dac · Post by **Dac** » Thu Sep 04, 2008 1:06 pm

what is the rest of your set up?
what cylinder, what carb, what pipe, hi-speed pulley?
you got to turn your carb to the rest of your bike.

DorkoElite303 · Post by **DorkoElite303** » Fri Sep 05, 2008 3:45 am

....high speed pully (playing with the rollers now) Alumin Flywheel. 85cc kit with a yoshimara pipe. 28mm carb. Jetting is....d*** I 4got. but it's over sized. (going to replay with the needle soon)

So I got everything I need. I've been playing with the roller weights, and I can't get the acceration that I want. I know alot of people go with the 8.44:1 gear set for the low end. But alot of the hawaii guys are running a 7:1 and still poppin wheelies.

So I'm thinking it's in the clutch???? I don't want to go to low in the center spring cause I figure I won't be able to get the engine into it's power band.

Here is my idea, i was thinking about dropping down to a 1500rpm center spring and maybe use some of the 2000rpm clutch springs.

Any ideas??? Boost bottle?? Nitrous??(j/k)

DorkoElite303 · Post by **DorkoElite303** » Fri Sep 05, 2008 3:46 am

Oh yeah...Thanks again Dac for the info on the washer. It's doing great!

Dac · Post by **Dac** » Fri Sep 05, 2008 8:54 am

clutch tuning is something i have yet to play with, but i have read some good info on it here and there.

the center should be like 1000-1500, the 2k springs are for like stroker set ups.
The clutch springs are whatever you want.

Wheelies are very diverice in how you do them. There is the "Power wheeile" where you just gun it and pull back. There are controlled wheelies, where its all about braking and throttle control.

Power Wheelies are easy to do, for those you want heaver springs so when the motor does kick in it will pull the front end up early. But this is not the best for long wheelies because if you let off to bring the front end down some, then give it gas again the massive clutch grab will toss you over backwords.
If you want to do controlled wheelies, set your clutch with weak springs and learn the wheelie right. [ Get rolling from 5-10-15 mph, gun it then pull back, (yes Back, NOT UP) the second the front wheel starts to lift back off, because that front end is coming up. Then from there its a game of throttle to keep it up, and braking to keep from going over backwards. ]

Real stunters up like 4k centers in the clutches so it never kicks into a higher gear during a wheelie, but im assuming that you wanna use the bike for road use also, so i would advice against this...

You wanna see some real scooter stunting head over too...
http://www.StuntBase.com
its really a European site but its in English. On that site is all about stunting scooters. Download some of there videos and you will be amazed for hours.

DorkoElite303 · Post by **DorkoElite303** » Fri Sep 05, 2008 9:10 am

Hahahaha... I love those websites! I've been watching all those youtube videos too. Makes me want to get one of the magaluti(spell check). I'm not looking for the power wheelie....just looking for a good hard acceration. So you read go with the 1000-1500rpm center spring?

Probably going to get one of those cheap tawian set of center springs until I find the right tunning.

DorkoElite303 · Post by **DorkoElite303** » Fri Sep 05, 2008 9:13 am

Now to think about it....Has anyone ever tried putting their stock spring back in?

I remember my scooter used to pull pretty hard with a bore kit and the stock spring. Hmmmmmmmmmmmm

burnt_toast · Post by **burnt_toast** » Fri Sep 05, 2008 10:52 am

DorkoElite303 wrote:Now to think about it....Has anyone ever tried putting their stock spring back in?

I remember my scooter used to pull pretty hard with a bore kit and the stock spring. Hmmmmmmmmmmmm

Just try it.. then be dissappointed as your upshift way too early lol

I'm using 2k center and 2k jog type grab springs, 7:1 Malossi primary gearing with ministroked Corsa at 75cc and I've fine tuned plenty to get a good launch setting.. It did this when I was using light weights ~32-35g total in lightened Keli vari, and jetting was low 138main, 48pilot.

With those carb and trans setting it launched awesome and would wheelie even from a roll pretty easily. But now for sake of top end and to keep the engine cooler jetting is much higher and weight is up too..

DorkoElite303 · Post by **DorkoElite303** » Fri Sep 05, 2008 10:17 pm

Yeah...I've been really busy since playing with the roller weight...but I will try different light set ups. That might be my problem. Maybe I should get a new center spring also...