Lightning
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| posted on 25/5/06 at 12:39 PM |
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Beat me to it. My blade did the same. It sounds like its not reaching high revs because its running lean. I had to rejet several sizes.
You will know when it runs well there will be big increase in performance. Rolling road job. Worth every penny
Steve
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Paul G
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| posted on 25/5/06 at 12:43 PM |
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Thanks for the advice fellas - I didnt realise it was such a common requirement to have to get it dynojetted, I'll have a look at the mixture
screws first to see if this helps and if not try not to drive it till its dynojetted.
Does anyone know any links with more info about dynojetting? Is it something you can DIY or does it have to go somewhere like TTS?
Andy - re your suggestion, is it just a matter of swapping the jets over and drilling bigger holes in the new ones?
Cheers
Paul
ps anyone know anywhere closer to Staffordshire that could do it for me?
[Edited on 25/5/06 by Paul G]
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andyharding
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| posted on 25/5/06 at 01:07 PM |
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The mixture screws only affect it at idle as far as I'm aware. Raising the needles would riched it up throughout the range but not sure if you
can do this.
Yes Paul, if we get some spare jets we can just drill them out and swap them over. Shouldn't take long. If the jets are cheap we could get a
couple of set and keep drilling them bigger until it won't go any better then back off one size.
Are you a Mac user or a retard?
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Paul G
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| posted on 25/5/06 at 01:48 PM |
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Cheers Andy that sounds like a plan! Might give you a bell once I've got my clutch cable fitted 
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jimgiblett
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| posted on 25/5/06 at 01:54 PM |
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You can purchase the kit and have a go to get it in the general ball park. As per my suggestion of clip 3 and either 144 or 150 mains. But getting it
done professionally on a rolling road is a much better solution.
Make sure that you get the correct Dynojet kit (TTS-4364). The TTS kit is approx £100 and IMHO not very good VFM as it comprises of 3 sets of jets a
set of needles and some epoxy and some instructions in a plastic box. You can get the jets cheaper from somewhere like PDQ in Slough not sure about
the needles but as they are official dynojet supplier maybe (or TTS may sell you just these).
- Jim
[Edited on 25/5/06 by jimgiblett]
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andyharding
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| posted on 25/5/06 at 02:18 PM |
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Paul, I've heard Weber jets will fit. It might be worth investigating as these are cheap/free and could be sourced quickly.
Are you a Mac user or a retard?
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Ferrino
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| posted on 25/5/06 at 02:31 PM |
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Can anyone please confirm how many turns out the R1 carb mixture screws need to be?
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zxrlocost
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| posted on 25/5/06 at 02:56 PM |
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98-99 carb engine about two and a quarter
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OX
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| posted on 25/5/06 at 04:13 PM |
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that is the basic setting for most bike engines but its a little lean around 4 turns out would be better but theres no rule as not all the screws will
be set to the same amount,start at 2 and a half turns out then one at a time wind the screw out untill the revs pick up once youv done all 4 start
again and fine tune them ,the revs will pick up quite abit so keep lowering the revs to around 1100
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Paul G
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| posted on 26/5/06 at 08:25 AM |
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Thanks again for all the suggestions lads I'll have a tweak once the weather sorts itself out again! Chris (zxrlocost) kindly took me out for a
blast in his motor last night and that was like a rocket - twice as fast as mine so at least I know there is a real problem there and its not in my
head.
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Pezza
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| posted on 26/5/06 at 09:36 AM |
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It's not an import engine is it? A mate of mine got a cheap second hand engine to drop into his gixxer 750 frame, took us ages to figure out why
it was so gutless.
Was from Japan I think and there was A throttle stop things on it to stop it opening all the way, totaly killed the power, was making about 80bhp when
it should have been about 150.
You couldn't pwn your way out of a wet paper bag, with "PWN ME!!" written on it, from the "pwned take-away" which originally contained one
portion of chicken tikka pwnsala and the obligatory free pwnpadom.
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Paul G
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| posted on 26/5/06 at 09:43 AM |
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I got it from MK and they said it came from Holland, so I'm not sure if it'd have this restriction on it but I'll take a look
Cheers
Paul
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Winston Todge
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| posted on 26/5/06 at 12:01 PM |
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The European R1 was restricted with inserts in the carbs... As shown on this build diary...
http://www.freewebs.com/mega-r1/april_part1.html
You'll have to click 'Skip this ad' at the top right of the freewebs page when it comes up to get to the proper page.
Again though, as everyone else is saying I would have thought it is majorly leaning out...
Chris.
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Paul G
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| posted on 26/5/06 at 01:39 PM |
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Ay up - just had a look and the butterfly valves open up fully by 90 degrees when the throttle is fully down so that looks ok.
The mixture screws were set at 3.5 to 4 turns out so when I get chance I'll block the holes off that rich showed me and give it another try. If
I get no luck there I'll turn the mixture screws back to 2.5 turns and see how it runs then
cheers
Paul
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Lightning
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| posted on 26/5/06 at 02:25 PM |
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Surely the mixture screws are just for idle and make no difference at all to the general running. That will be by larger main jets.
Steve
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G.Man
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| posted on 26/5/06 at 03:29 PM |
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Yup you need larger main jets and different tapers on the metering needle..
But there is an airbleed that can be blocked i believe...
Opinions are like backsides..
Everyone has one, nobody wants to hear it and only other peoples stink!
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Paul G
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| posted on 28/5/06 at 10:53 AM |
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Well seems like the cocktail sticks work! Getting about 30% more power now goes up to 45 in first gear before hesitating and stuttering, obviously
still needs a bit more tweaking but at least I'm making some good progress with it, it feels a load better already! Next step is hopefully
getting the jetting sorted
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Paul G
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| posted on 30/5/06 at 08:22 AM |
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Getting my mate to put some bigger jets in it and hes also going to reprofile the intakes a little since I dont have the trumpets - obviously this
wont be as good as getting it properly set up on a rolling road but this geezer knows his stuff and has been working on bikes and fitting dynojet kits
for a living for years so its got to make an improvement
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kb58
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| posted on 30/5/06 at 01:34 PM |
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Sorry to be blunt... but quit typing and have it tuned! No matter what you do to it you still need to get it tuned, so you're just wasting
time. Make an appointment... now!
Mid-engine Locost - http://www.midlana.com
And the book - http://www.lulu.com/shop/kurt-bilinski/midlana/paperback/product-21330662.html
Kimini - a tube-frame, carbon shell, Honda Prelude VTEC mid-engine Mini: http://www.kimini.com
And its book -
http://www.lulu.com/shop/kurt-bilinski/kimini-how-to-design-and-build-a-mid-engine-sports-car-from-scratch/paperback/product-4858803.html
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zxrlocost
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| posted on 30/5/06 at 02:18 PM |
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he wants to, I want to on mine but theres no where within a few hours suitable unless anyone can tell us
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G.Man
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| posted on 30/5/06 at 03:00 PM |
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Stoke on Trent/west midlands about 1-2 hours from northampton so you could try TTS...
Opinions are like backsides..
Everyone has one, nobody wants to hear it and only other peoples stink!
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zxrlocost
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| posted on 30/5/06 at 03:30 PM |
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preciseley more like 2 hours
not exactly a good drive there either unless we doubled the time
IM still up for it though
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richijenkin
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| posted on 30/5/06 at 05:34 PM |
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Cool, What do I get for 1st prize then? Even though OX gave it me.
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G.Man
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| posted on 30/5/06 at 09:12 PM |
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Just get a dynojet kit and that will get you close...
They have settings for no standard airfilter and race can... start with those and adjust til it drives right...
Its not a difficult home job to be honest
Opinions are like backsides..
Everyone has one, nobody wants to hear it and only other peoples stink!
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MikeR
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| posted on 30/5/06 at 09:41 PM |
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and its got to be better than driving it like it is now (for the engine)
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