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Further settings for rissington
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Further settings for rissington - 12/3/2010 13:04:35
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ED1982
Posts: 47
Joined: 28/2/2010
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I attended my first ever karting practice session at rissington in the end. Span lots on the 1st session of day + met the grass at one point with karts narrowly avoiding me. felt a bit of a prat but suppose thats what i should be expecting 2 happen at novice level. cant learn it all at once. but nethertheless what a buzz! got used to controls + tuned kart + was running smoother by the end of day. now im looking to tune my kart even more to help me before next months session. may as well start while the months young. ive written a bit of an essay below but i may as well get all areas covered. no point beating about the bush. If anyone can answer any of the below or think of more adjustments i can make 2 areas i would be grateful for information so i can build up my own technical manual for this beast. Thanks. ed.
Rear sproket: bought 108 chain but havent got 86 sprocket at the moment, only 85 + 87. which would be better untill i get 86? my weight is around 76 kgs on average.
Rear axle width: Was told by someone my rear wheels were unevenly positioned. I moved 1 of them to same position as other acording 2 its axle key piece. think they told me wheels should be positioned so that there is total of 138cm axle length from 1 outer tyre face to the other. have i rememberd correctly?
Front axle width: I was runing a bit thin + people recomended bringing the wheels out by swaping spacers round. lad from ACR said 25mm but someone else said they prefer them out as far as possible because you get better turning response. Theer set at 25mm now.
Exaust flex: I know what size im supposed to be using but dependin on what sproket size i run what difference does exaust flex size make to engine characteristics? At the moment the smallest of all my available sizes is fitted to the kart.
Brake system bleeding: Spoke to lad from ACR + he sed the brakes need bleeding because the cable adjuster is tightend most of the way instead of being slack like it should be with recent new pads that have been fitted. to bleed them, do i undo the hex key bolt at the brake caliper + master cylinder ends + then pump brakes? do i use dot 4 fluid?
Carb adjustment: My kart was reaching what seemed like a rev limit before the end of the longest straight at the circuit. Spoke to the same people again + they adjusted one of screws on carb to 1 hr postion. this gave the kart more go at top end + i wasnt able to go flat out down straight unless i locked brakes and shot all over the place before the dog leg. i understnd 1hr is 1 full turn out. i also know that a good setup for rain is 1/2hr, i dont however know which one of screws they touched? wat does H, L screw + the third bronze coloured screw do?
Also is it best 4 engine protection to warm the engine up a bit in the pits instead of just letting it tick over for about a minute on the dummy grid before going full pace on circuit?
Thanks. ed.
< Message edited by ED1982 -- 13/3/2010 9:50:21 >
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RE: Further settings for rissington - 12/3/2010 22:08:14
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mark elder
Posts: 143
Joined: 27/8/2007
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I like to help new Easykart people but I gave up reading your post. Can you please use words instead of 'txt'
Sorry to be the fun police but it just hurts to read txt when you are as old as me. Can only imagine how it feels at the age of Sir Tim, Soles and HBK
< Message edited by mark elder -- 12/3/2010 22:09:30 >
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RE: Further settings for rissington - 12/3/2010 23:19:26
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carreraman
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I also tried my hand at reading this Mark but my 10 year old daughter refused to translate it for me so plz redo for us old timers.
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Driver-Ciaran Haggerty Junior #55
www.ciaran-haggerty.moonfruit.com
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RE: Further settings for rissington - 13/3/2010 9:16:28
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richydehav
Posts: 372
Joined: 25/3/2009
From: Richard
Status: offline
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Hi Ed,
It would help to say what class you are in but the following works as a general testing method:-
There is no ideal set-up for the kart - you need to find what suits you best. Ideally you need to make one change at a time, see how that affects your lap times and then adjust from there.
A day or two at a track like Llandow is good for testing because you will usually get loads of track time. Last time we went we had about three hours where we could go on and off track as we wished. It helps to do the test on a dry day.
Start with the basic set-up suggested - 25 on front etc. For the rear hubs measure in from the ends of the axle and ensure both hubs are set the same e.g. 10mm in. Set tyre pressures and then go out for say 10 laps, come in and record lap times and max/min revs.
Now decide what your first adjustment will be, If it is the front spacers then go to either 20 or 30 and do another 10 laps, come in and record data and see if your times are better/worse. Then do another ten laps and repeat the process. You may find that you prefer the handling at one of the front settings so stick with that and move on to the rear setting until you find the ideal one for you (at that track and thoses weather conditions). For the rear axle settings if you have the hubs right at the end you will have less grip and as you move them in you get more grip.
Now you can start some testing at different tyre pressures. Then do some with different flex lengths.
For the sprocket an 87 will give you more pull out of the corner whilst the 85 will give you a bit more top speed down the straight. Remember that in a race everyone will be on the same sprocket so you will not have this choice so stick to one sprocket for your test session. I would also suggest using the spockets that we will race with especially if you are testing at a track where there will be a meeting. In classes where the sprocket size is open then less experienced drivers will probably use a bigger sprocket than the fastest drivers. This is simply because the faster drivers carry more speed through the corners and can therefore take advantage of the smaller sprocket.
For the carb you have the screw-in jet and for most tracks you can stick with one 73 cadets, 83 juniors (not sure about seniors). You can adjust the other jet but again this should be the basis of some test laps - there is no point adjusting the carb, moving the rear hubs and changing tyre pressres as you will then not know which adjustment has affected the lap times etc.
_____________________________
Richard
James DeHavillande
Cadet 1 (2009)
Junior 49
Easykart Driver programme 2010
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RE: Further settings for rissington - 13/3/2010 9:22:57
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GranadaDave
Posts: 580
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Lol, I gave up aswell! wasnt going to say anything until I read I wasnt the only one!
neway, c u al n'2 wks
Dave
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RE: Further settings for rissington - 13/3/2010 23:50:50
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ED1982
Posts: 47
Joined: 28/2/2010
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Thanks. So on carb adjustments is it the two larger screws you can adjust wherever you want? Is the screw in jet the one with the spring on it? I wondered what adjustments i could make without running at a dangerous setting which could damage the engine. I have a 125 senior easykart. not sure whether id be in lights or heavies based on my weight but racings a long way off yet. Are the test days at Llandow which offer long testing sessions specific easykart events? Do you need to join easykart membership? or is it just a case of turning up on a practice session and paying the non members fee? Riss is quite a busy circuit with alot of different classes. I had a maximum of 6 minutes each session and 7 sessions to play with totaling 42 mins circuit time. There was roughly 40 mins in between each session. They put me in with senior TKMs. Think i need to get the brakes sorted out for next time though. The kart seemed to take a long time to slow down in places and then id end up locking up. Theres a hell of a gap between disc and pads. I know from my days as a HGV mechanic and from looking at disc brakes that surely isnt right. Thanks. Ed.
< Message edited by ED1982 -- 14/3/2010 0:00:36 >
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RE: Further settings for rissington - 14/3/2010 0:00:41
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richydehav
Posts: 372
Joined: 25/3/2009
From: Richard
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Llandow practice is open to anyone but it is worth phoning to see if they have a big corporate event booked as that would reduce your track time.
If you can get time mid-week then Whilton have practice days every Wednesday. In term time they usually run 10 minutes every hour for cadets and then the other 50 minutes is open for juniors/seniors.
If you say where you live then others may be able to suggest good tracks for practice sessions - these will not be specifically Easykart as those tend to be on the Saturday before race day but you may find other Easykart drivers turning up ast various circuits.
No doubt one of the senior drivers will be able to answer you carb questions.
_____________________________
Richard
James DeHavillande
Cadet 1 (2009)
Junior 49
Easykart Driver programme 2010
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RE: Further settings for rissington - 14/3/2010 0:10:59
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ED1982
Posts: 47
Joined: 28/2/2010
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I live in Gloucester in the south west of England. Think riss is closest club to me included in the start karting pack list of clubs. But on hearing that you get more track time at other circuits that is an incentive for me to travel around a bit. The trouble is with the length of time i had on saturday, by the time you start to get in to a rythm next thing you know the marshalls are waving yellow flags and thats the session over. I was sitting there wishing they would let us have just one more lap. ha ha.
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RE: Further settings for rissington - 15/3/2010 22:25:08
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willno25
Posts: 42
Joined: 29/11/2008
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Hi,
I suggest you contact ACR who will probably be able to supply you with an operating manual for your Easykart (They certainly do one for Cadets) It will contain some very useful info on basic set-up which should help you get the kart working correctly. In fact its probably worth visiting them, being so close to you.
With regard to tracks I recommend that you avoid each clubs monthly race weekend since you will get less track time and its all a bit frantic. Some tracks are open every day and don't have much corporate stuff going on so on a midweek day you can drive virtually continuously. However there may not be many people to offer help if needed. Some tracks also have kart shops for any spares you may need which is always handy and may save the day.
Alternatively you'll probably get about 20mins per hour on a non-race weekend.
Hooton Park in Cheshire 0151 355 7513 is a track which operates as above, and I think Llandow (Bridgend, no shop) and Clay Pigeon (Dorset) are similar.
If you are new to karting it is important to get as much time in the seat as possible.
Steve
_____________________________
Will Stowell
UK Cadet #2
World #14
2010 Easykart Driver Program
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RE: Further settings for rissington - 15/3/2010 22:39:43
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stu
Posts: 22
Joined: 12/10/2007
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hey Ed,
i live in cheltenham, as much as i love rissy i agree about the short sessions. like you say, you just get into a rythem and then have to stop. however iv been recently been goin to whilton ( northampton ) on wednesdays, its open track, and most days myself and a friend get in around 80 laps each, on the same kart, which is value for money, and worth the 80 mile / 1.5 hour trip.
we leave at 7.30 and get back home around 6.
if you have your own transport i'd be happy to hook up with you for the day, no probs
cheers
stuart
< Message edited by stu -- 15/3/2010 23:40:54 >
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Easy 76
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RE: Further settings for rissington - 16/3/2010 17:58:53
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ED1982
Posts: 47
Joined: 28/2/2010
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Sounds good. I have my own transport. If i get a wednesday off i think ill head over there. Thanks.
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RE: Further settings for rissington - 16/3/2010 23:04:00
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richydehav
Posts: 372
Joined: 25/3/2009
From: Richard
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Ed, if you go to Llandow, have a chat with the lads out on the circuit - they know the track well and are very helpfull. They will try and watch you lines through their section and give you some feedback if it is not too busy.
A thank-you drink at the end of the day would go down well.
_____________________________
Richard
James DeHavillande
Cadet 1 (2009)
Junior 49
Easykart Driver programme 2010
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RE: Further settings for rissington - 18/3/2010 20:28:46
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ED1982
Posts: 47
Joined: 28/2/2010
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Stu. Are you going to whitton mill next wed? I have the day off work. Im strugling trying to get the kart ready for then. Im having problem with the brakes. I was bleeding them the other day and had them so they were more responsive, then i managed to loose fluid from master cylinder and ended up with massive air lock. Theyre getting there gradualy. My brother was giving me a hand and he pumped them lots of times. The fluid is gradually lowering in the master cylinder when i undo the bolts on the brake. Could be working on it a long while yet. I dont have a bleed bottle and am under the impression that if i did the whole process would be a lot easier. I may try and get one from ACR before wed but dont think ill be able to. Also im going into hospital this weekend so hopefully i will be allowed to go racing after. Ill keep you posted.
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RE: Further settings for rissington - 18/3/2010 21:17:28
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stu
Posts: 22
Joined: 12/10/2007
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hi Ed..
yup. im planning on goin wednesday the 24th
good luck with ya brakes..
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Easy 76
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RE: Further settings for rissington - 18/3/2010 22:41:47
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ED1982
Posts: 47
Joined: 28/2/2010
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I just bought a bleeder bottle and 106 chain off EBay so touch wood theyll be here before wed.
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RE: Further settings for rissington - 20/3/2010 20:47:35
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ED1982
Posts: 47
Joined: 28/2/2010
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Wont be going to Whiton mill on wed stu. im in hospital and doc told me ill be on crutches for 2 weeks. didnt expect that. i did break my leg very badly last year though and was having follow up surgery on the skin graft surrounding it. doubt ill be @ rissy next month either. some other time. chow for now.
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[Deleted] - 20/3/2010 20:48:14
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ED1982
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Post has been moved to the Recycle Bin at 22/3/2010 8:04:54 by GranadaDave
Reason for deletion: duplicate post
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