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Post by Blackruk on May 24, 2007 14:25:07 GMT -5
Just to throw my two cents in - I started with a 42/90. Thought it worked pretty good, but it seemed rich. I switched to a 40/88, it sucked.  Went back to 42/90, still sucked. Tried 35/90, still sucked ( ). Adjusted the idle mixture (two turns out). Still sucked ( ). 35/92 - yup, sucked. Decided to change directions and try a real lean mixture of 35/85. Still sucked ( ). How can that be? Checked the plug - real grimey. Replaced the plug, and now 35/85 - not bad. Tried 38/85, idle mixture out about one turn. Still not bad. Accelleration ok, top end 43+/-. The point of this (if there is one) is I think Chanito has a point. I think I was originally running way to rich which fouled the plug and threw off my later attempts to jet. 38/85 is pretty good and I may fiddle with the needle spring like Chanito suggested. Might try the 88, but keep the 38. Dan, did you think about cutting the spring to improve accelleration? |
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Post by Dandy Dan on May 24, 2007 15:07:25 GMT -5
No because I had great acceleration with a 42/82 setup last summer so I know much better acceleration is possible without getting in to that. I haven't had enough time to properly finish rejetting yet so I'm going to explore more jetting options before I open that can of worms.
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Post by chanito on May 24, 2007 18:09:51 GMT -5
Springs are so cheap it makes sense to buy two and cut one coil of one and one and a half of the other, the job of the spring is to control how fast does the piston in the carburator raises, raising with it the needle, doing it this way improves the part throttle response, for me cutting 1 and a 1/2 seems the best, i use the stock slow jet and an 85 main and it works like a champ. The reason i do not use the spark plug method for tunning is that once the porcelain gets dark, it will stay dark, unless the scooter runs hot enought to over heat (and i am not sure it will turn white) taking the plug and clean it during jetting procedures is a very good idea as it asures you have a good spark, in my experience, modding the ground electrode of the spark plug and reducing the gap, have make Katrina go past the 8k mark often, so now i can ride all the way to 8500 rpms, but i will still like to get a better CDI than the Daytona i have, as the capacitor suxs
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Post by Dandy Dan on May 25, 2007 7:48:32 GMT -5
Now that I think about it more, I do have an extra diaphram spring or two kicking around in my box of parts. Maybe I'll play with that sometime....
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Post by chanito on May 26, 2007 21:44:13 GMT -5
Now that I think about it more, I do have an extra diaphram spring or two kicking around in my box of parts. Maybe I'll play with that sometime....  What are you waiting for  |
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Post by Dandy Dan on May 26, 2007 23:14:31 GMT -5
Well mainly I want to see how good I can get it first without doing this. I know I'm rich right now with a 35/90 setup because my top end is noticably better at night. It does stumble a bit off the line too so I'm thinking up 1 or 2 sizes with the slow jet and down a size with the main jet to lean out the top end a smidge...so something like a 38/88 or 40/88 is what I'm going to try next. My 42/82 setup I was running last fall was lean up top but it hauled to 30mph....my 0-30mph times are about 7.3 seconds now on average and last fall my average was 6 seconds flat with my best times closer to 5.5 seconds.
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Post by turbowagon on May 29, 2007 13:09:43 GMT -5
$300 down the tubes.  Looks like my Veypor got lost in the mail when I shipped it for warranty service. |
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Post by Dandy Dan on May 29, 2007 13:40:05 GMT -5
Do you have a tracking number or insurance?
3.5 weeks isn't that long for a parcel to take to go from the USA to Canada. I sent Arunto a package once via Expediated Parcel Post (equivilent of Airmail Parcel Post in the states) and it took over a month. Don't lose heart yet....but if you do see your postman hunched over the bars of his sportbike fiddling with something you may wanna go over for a look.
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Post by turbowagon on Jun 1, 2007 12:14:09 GMT -5
 Woohoo!!!!!!!!!! >Joe, > >I'm really sorry, I thought we emailed you about this already. > >We got your package, made the repairs and shipped it back to you yesterday. > >It's on it's way back to you. > >Regards, >Nathan
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Post by tuesdayclub on Jun 1, 2007 23:43:31 GMT -5
THAT'S service!!!!
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Post by Kami no Chiizu on Jun 3, 2007 18:54:51 GMT -5
That's reassuring.
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Post by Blackruk on Jun 23, 2007 20:36:27 GMT -5
Question for everyone with the BB - what kind of top speed are you getting?
I have a 2003 ruk with CDI, pod filter & Yosh (I also run boppers & the kevlar belt & have a Chanito windscreen). I'm maxing out at only around 40 on flats and 43 or so if I tuck (but it gets there pretty quick), at max RPM of about 9000. With a 38/85 jet, it idles great, even seems a tad rich.
I was expecting a little more top speed (but I'm not disappointed).
How do you think my BB's doing, compared with your results?
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Post by timberwolfmadcat on Jun 23, 2007 23:08:43 GMT -5
Question for everyone with the BB - what kind of top speed are you getting? I have a 2003 ruk with CDI, pod filter & Yosh (I also run boppers & the kevlar belt & have a Chanito windscreen). I'm maxing out at only around 40 on flats and 43 or so if I tuck (but it gets there pretty quick), at max RPM of about 9000. With a 38/85 jet, it idles great, even seems a tad rich. I was expecting a little more top speed (but I'm not disappointed). How do you think my BB's doing, compared with your results? Any reason you're not running an aftermarket variator? Your top speed definitely seems a little on the low side, my 05 with just a polini was able to do 40 MPH on fairly straight flats You could try cleaning your airfilter, that might be the culprit What are the wieghts you are using in your variator as well? |
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Post by Blackruk on Jun 24, 2007 8:46:11 GMT -5
Duh - I have a Daytona variator too with 6 g weights. My bad.  I was thinking air filter too, but it looks clean. Maybe its a little oily from the crankcase vent. I'll check today. I weigh about 165. I figure I should be able to go a bit faster, don't you? |
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Doctavius
Ruckster
Supah Sharp Shootah!!!
Posts: 220
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Post by Doctavius on Jun 24, 2007 13:40:39 GMT -5
Now that I think about it more, I do have an extra diaphram spring or two kicking around in my box of parts. Maybe I'll play with that sometime.... Just a point of interest here.... The spring from my Metro Carb was MUCH heavier of a spring than my Ruckus Carb had. |
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Post by chanito on Jun 24, 2007 21:46:31 GMT -5
When i put the 6gram rollers i also lost top speed and had to switch back to the heavier stock rollers, but i asume lighter guys do not have the same problem, try and switch back to the heavier rollers and maybe your speed will come back 
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Post by Kami no Chiizu on Jun 24, 2007 23:21:27 GMT -5
I run the mix weights in my Ruckus with just the polini... I run 39 fairly consistently. And I'm probably closer to 175 lbs fully dressed, so I'm not that big.
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Post by Dandy Dan on Jun 25, 2007 14:54:26 GMT -5
I spent 800kms on saturday following a 2005 Ruckus with a big bore kit, cdi and opened up stock airbox as it's only mods so I have a pretty good idea of how fast it goes. That Ruck cruised at 42-44 mph on flats and up to 50mph down medium hills. It took a big hill to drop it under 37mph.
My BB ruck was pretty similar to that even though I had a few more mods. With a big bore it seems like noticable acceleration gains are easy to get but you need to have everything dialed (jetting, valve shims, gearing) before the top end is going to purr.
That same Ruck was about 7 mph slower when it had the Malossi variator in it. I think the taller gear ratio just kept the revs too low and it wouldn't cruise at peak power. It cruised at 33mph with the Malossi and then up to 41mph or so with the stock variator and then that rose up to 43mph-ish when he tossed in the CDI and a homemade seat that reduces his drag because he sits lower.
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Post by Blackruk on Jun 25, 2007 15:28:03 GMT -5
Thanks all for the input.
Cleaning the air filter really helped. As did cleaning and gapping the plug. It gets to 40 mph with ease and hits 43-44 on flats, with a bit of a headwind (it was VERY windy this weekend). I could probably hit 50 downhill, but I have no desire to hasten the demise of my ruk.
I think I'll throw the stock variator back in just for fun.
At some point, I have to put the Met 45T gear in. But I want to get the performance dialed in as good as possible before that; otherwise, I'll loose my point of reference after I put the Met gear in.
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Post by Sanjuro62 on Jun 26, 2007 1:41:00 GMT -5
[quote author=blackruk board=Tuning thread=1176990100 post=1182648987...pod filter & Yosh (I also run boppers & the kevlar belt & have a Chanito windscreen).[/quote]
That's really slow for a BB Ruckus with all of the mods that you have on it. What type of pod filter are you running? I've found this DRASTICALLY affects performance more than you think it would. I run a K&N RC-0790 filter and my bike is dialed in perfectly. We both weigh the same and I can easily hit 49 mph and 52 isn't far off.
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