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It depends on what type of Yamaha class people want?
Open pipe is GREAT racing. But, you need to know your stuff to be fast. SSX can takes a BIG variable or two out of the equation.
SSX can racing was pretty simple on maintainence. A wet clutch SHOULD last a season. It depends on # of discs, and how hard it was used and or abused. I beleive a 1 or 2 disk wet if properly maintained would last a year. (frequently change oil, rotate discs)
Any kart shop in Colorado should be able to order the pipe for you through RLV. Its a fun kart to race. Top speed is only about 60 mph, but it is easier on parts than open pipe.
Cheaper than Tag?
We ran the Rotax cutch for 3 years and only changed the drive gear. Motori, went 2 years and is still going?
Get back to work Brian! You’re displaying excessive personal computer use on work time!
You’re just an amazing mechanic, Rick! Between four different rotax’s on our team last year, I can’t count the number of clutchs we replaced, rebuilt, etc. It seemed like they were always coming apart.
Post by jack tracy on Fri 02 29, 2008 6:46 pm
Cheaper than Tag?
We ran the Rotax cutch for 3 years and only changed the drive gear. Motori, went 2 years and is still going?
Get back to work Brian! You’re displaying excessive personal computer use on work time!
You’re just an amazing mechanic, Rick! Between four different rotax’s on our team last year, I can’t count the number of clutchs we replaced, rebuilt, etc. It seemed like they were always coming apart.
Thanks Cody! Your Dad and I are awesome mechanics with pretty decent drivers :direct
You know, maybe we were just lucky. The Motori has essentially the same clutch as the Rotax and we had very little problem with our clutches on either kart. The clutch support were not available the first year and half Roman ran one. Once installed I kept an eye on support and replaced it as soon as it cracked. We did see racers around us snapping the flywheel studs and spinning the flywheel on the crank. Most seem to aggressively lock the brakes into breaking zones, aggressive use of the rumble strips or staying flat at the tracks that unweight the kart.
Now… you weren’t trying to drive that Rotax like an Ica kart, were you?
Haven’t run a Kt100 in a long time (don’t know about you) but clutches were a big part of the expense of running, AND that little knob you can twist that makes it go faster. Always liked the engine package and know of several just sitting due to popularity of Tag. But I would listen to Brian or some of the racers that have more current experience than I.
Anyway, maybe it’s all the “good clean living” Cody.
Or maybe you’re such an amazing driver that those darn clutches just scattered in your presence?
Rick
haha! Some people have better luck than others. I was always breaking that triangular shaped gold plate. I have no clue why. Sometimes it would last half the season and sometimes it would last one practice session.
I raced KT100’s for a couple years. We ran a wet clutch (very messy), and someone told us it was slower. So we switched to the L&T mini clutch (dry), and it needed adjustment and/or replacement VERY often. I guess you could say, the rotax clutch is better.
BTW Rick, be careful calling my dad an awesome mechanic! He’s more creative :loony: …Upsidedown powervavle, loose tires, and an empty fuel tank are fairly common when he’s doing the wrenching. I guess we’re just trying something new, or saving weight? 😆 He’s best for telling me when to pull my head out and pay attention. He also lets me know when I need practice ❗
Post by jack tracy on Sat 03 1, 2008 12:07 am
haha! Some people have better luck than others. I was always breaking that triangular shaped gold plate. I have no clue why. Sometimes it would last half the season and sometimes it would last one practice session.I raced KT100’s for a couple years. We ran a wet clutch (very messy), and someone told us it was slower. So we switched to the L&T mini clutch (dry), and it needed adjustment and/or replacement VERY often. I guess you could say, the rotax clutch is better.
BTW Rick, be careful calling my dad an awesome mechanic! He’s more creative :loony: …Upsidedown powervavle, loose tires, and an empty fuel tank are fairly common when he’s doing the wrenching. I guess we’re just trying something new, or saving weight? 😆 He’s best for telling me when to pull my head out and pay attention. He also lets me know when I need practice ❗
Yea…that’s the clutch support. If you check for cracks after every session (outermost part of the ring) and replace upon finding the crack. The clutch lives well and a reasonably (?) priced clutch support saves the day. The reasons I mentioned are the most common for a failure, I believe. But you do need to check, or the pedestals for the shoes will bend or snap.
Watch what you say about your Dad. I really like him, AND, his creativity simply helped to develop you as a driver. (all a part of the plan, of course)
The upside down (or loose in my case) powervalve, really makes a driver grab for that extra bit to stay ahead of the pack!
Loose tires? What are you complaining about? Everyone knows a free kart is a fast kart. What do you want?
Not sure what to tell you about the empty fuel tank, other than Roman has watched his Dad standing there a few seconds late, with the fuel jug in hand as he passed by on the warm up lap. Hey, try not to sweat much. Just drive the damn thing and bounce a little on the scales. Ok?
And Cody. The best thing Jack or Rick will ever do for Cody or Roman is… knowing exactly when to advise you to “pull the head out” just as our Dads did for us.
Practice? You guys need practice?
Hope all is well.
Rick
Hello to all, I’m writting this from frickn cold Speedway Indiana. I was turned on to this site by my two good friends Brian Robson and AJ Noud. I have been racing yamahas since 1987 and I think it’s great you guys are considering it for a class. The KT 100 is most “durable” with a ssx package with a Horstman HDC 5B clutch for seniors and a HDC 5A clutch for juniors. Both clutches are dry the only difference is the A has 1 disk and the B has 2 disks. With these cluthes you could race up 5 weekends with little to no matinence after that you would only need to change the disks to keep the air gap close to specs. These clutches are damn nere bullet proof. The ssx set up is much more driver and chassis involved meaning the set up and driver need to make as little mistakes as possible. We generaly have 6 to 10 guys running nose to tail for 30 laps. If you decide to run the pipe set up you would need a whole slew of pipes, flex’s , gears, plugs, and clutch maintence parts and tools, like BR said, but the pipe is much faster in a straight line. I would be glad to answer any questions anyone has to help guide you through your endevor. The KT’s are huge out here with the entrys bringing in about 40% of classes. Good luck .
Oh YA …..almost forgot… HAPPY BIRTHDAY BR!
fletcher and all
Absolutely agree with the majority, the SSX packages are the most reliable and cost effective. Could be a great start in bringing KT-100 racing back to Colorado. Parts availability at resonable prices make it very appealing. Additionally, after market stuff for them is abundant. If you’ve run sealed engines, i.e. Tag and Rotax, you know how expensive it can be, if for example, you have to replace a radiator, Ouch!!!!
So, how many are in for KT-100 racing??? I’d be running in the old guy class, Master or Heavy.
Eddy
I raced in 1988 to 1992 KT 100 was third in the state got throphys to prove it lites that is .I`m be a heavy now.Anyway had DXL clutch used a little oil every race never had a mess. If you over fill it you have a mess.I never practice or never let anybody drive my kart, clutch was good the whole time I just changed the springs. Brad would get mad if we tore up our equipment and not take care of it..RLV tuned pipe way to go you can tune to your driving style.With the right stuff you can go fast.Lets go green
!!!!Thanks Greenie!!!
From what it sounds like, IMI MIGHT let a KT class in with the club races. It would be nice to see some SSX can racing locally. If it happens it can be a great thing for Colorado karting.
Yea,
Happy Birthday Brian!
Maybe we need to fly in some of your Indy friends to show em how it’s done. Seems weird there are pockets around the US that run huge classes using the KT 100 and HPV engines and we don’t se any here?
Anyway, hope your day was good brother!
Rick
because Colorado is a karting island!
SSX can racing is a great entry-level to karting. I might play a little with some KT-100 stuff if it’s around. I am putting together a kart with a Parilla TT-75, with a big carb and direct drive. It will be fun trying to run with TaG guys during a practice day. ( I wont add any weight).
Maybe Green and some of the Hoosier posse will come out and play one day. I know they would love a tour of the beverage plant here in Golden!
Thanks for the birthday wishes. Too bad I’m old!
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