KymcoForum.com
Motorcycles => Venox 250 => Topic started by: aus250 on June 11, 2010, 08:21:58 AM
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??? >:( :( :'( g`day from down under iwas wandering if anybody could help i bought a venox 250 late 2009 and iam having trouble with it maintaining top speed when i try to hold it at 110kms or 65/ 70 mile hour when it comes to a incline it will lose power any sugestions would be great cheers
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Maybe a dirty air filter? Has it been through any of those terrible dust storms you have down there?
How many miles are on the bike? Has it had it's valves adjusted at the recommended time?
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G`DAY MATE NA SHE HASN`T BEEN IN THE WEATHER IT HAS ONLY DONE 1860KMS
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Your scoot is set up from the factory on the conservative side. Check the valve adjustment, and consider going to an aftermarket exhaust. You can then increase the main jet size, and add a free flow air filter. That will get the engine up to par. The cvt can use lighter rollers, and stiffer clutch fly springs. Those will bring up the bottom end performance. you can add 7-8 mph, and get there alot quicker.
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...venox has a cvt??
???
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Zombie must've thought he was talking about a scooter -- understandable mistake since he posts in dozens of scooter threads.
It's a 5 speed bike, yeah.
Well, valve adjustment is the only thing that comes to mind on such a new bike, aus. It's probably recommended at the first or second service, anyway, so why not mention it to the dealer now.
It's not really even broke in well yet so maybe stronger after more kms on it.
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...i was getting confused.......
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G Day aus250..
Glad to see a member from 'down under' riding/owning a Kymco Nox 250
Here is your answer:
What you have is a bike that is geared really to high in 5th gear. Its almost a 1:1 ratio, an 'overdrive'. A real issue for a new rider with steep hills or going into strong winds. This is about the only issue about this great bike.
What we at piwyr.co.cc recommend is a rear sprocket replacement. Many have done this mod and ALL AGREE it is the best mod you can do for the bike. We even set up a couple shipments from the USA resource to Spain where they have had the bike since 2002.
With out this mod your only choice to step down a gear to 4th to get back into a power band. The problem with this is it revs the engine really high (no issue with any damage as the Nox has a rev limiter) which hurts gas milage.
Get the rear sprocket upgrade and your Nox will feel like you have added cc's !!
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A different transmission, but still the same remedy that zombie suggested, adjust the gearing for better performance.
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There were several other posters here w/ the same dilemma. All that could be found was a front sprocket for the bike. PIWYRCOM, what is the tooth size of the sprocket you carry? I will send out a few emails to let people know you have them. How long have you been carrying them? PS Thanks Sid! Always looking out!
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G`DAY GUYS THANKS FOR THE INFO ON THE O TORQUE ISSUE IF ANYONE CAN GIVE ME A HEADS UP ON WHERE TO GET A AFTER MARKET EXHAUST SYSTEM AND REAR SPROCKET IT WOULD BE COOL AS THE AFTER MARKET PARTS FOR THESE BIKES HAVENT HIT DOWNUNDER YET BUT I WILL GIVE THE DEALER A HEADS UP ON THE VALVE SETTINGS WHEN I TAKE IT BACK FOR ITS NEXT SERVICE CHEERS :) ;D ??? 8)
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http://www.powersportsnetwork.com/enthusiasts/review_detail.asp?rv=45288&veh=6394 (http://www.powersportsnetwork.com/enthusiasts/review_detail.asp?rv=45288&veh=6394) http://ourlittleadventures.com/kymco-venox-exhaust-baffle-mod-step-by-step-instructions-with-images.html (http://ourlittleadventures.com/kymco-venox-exhaust-baffle-mod-step-by-step-instructions-with-images.html) Here's what a quick google came up w/. There are a few links in the articals. Try looking under the search feature for info on the front sprocket, as there is an English fella here that found one of those. http://kymcoforum.com/index.php?topic=1477.0 (http://kymcoforum.com/index.php?topic=1477.0) Forget the search. Here it is
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The Venox comes with a 38 tooth rear sprocket. The replacement is a 44 tooth specially made by SPROCKET SPECIALISTS out of California. The kit includes a new chain which also should be changed if you have any milage.
(http://www.epfguzzi.com/kymcobiz/accessories/motorcycle/sprocketvenox.jpg) ( + new chain )
We have many topics at piwyr.co.cc about this mod and also about replacement exhaust systems . (we have been collecting Venox information since 2006)
The main topic with ordering is in a registered (posting) member only forum.
http://piwyr.co.cc/topic/573815/1/ (http://piwyr.co.cc/topic/573815/1/)
The link posted above to http://ourlittleadventures.com (http://ourlittleadventures.com) is by piwyr member/moderator adri (also a member here)
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;D ;D ;D :D ::) G`DAYY GUYS I WOULD LIKE TO THANK YOU ALL FOR THE HELP ON THE TORQUE ISSUE I THINK I WILL TRY THE SPROCKET FIRST AND SEE HOW IT GOES I WONT BE ABLE TO DOO ANYTHING WITH IT JUST YET AS IT IS A BIT WET DOWN HERE AT THE MOMENT CHEERS AUS250
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WOW>>> I'll tell you how this is gonna go aus, That sprocket will have you pulling the front end in any gear. You will have TONS of torque. You will loose perhaps 5mph on the top end, but that is mph you would have needed a long down hill to use anyway. Piwyr... Thank you for the help! I have bookmarked your links, and will refer you at every opportunity!
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GDAY GUYS IT IS I AGAIN ANY CHANCE OF A WEB SITE FOR THESE GUYS IN CALIFORNIA I SO I CAN PURCHASE THE CHAIN KIT IT SEEMS I CAN GET BETTER HELP FROM YOU GUYS HERE IN KYMCO LAND CHEERE AUS250 PS STILL WET DOWN UNDER ;D
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Sprocket Specialists is the manufacturer for the sprocket not the dealer , follow the link in my previous post for all the info you will need.
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SEEMS I CAN GET BETTER HELP FROM YOU GUYS HERE IN KYMCO LAND
..it's what we love to do...help a brother out...
..tho, i've had absolutely no part in your situation...lol..
;D
peace
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Just your presence is enough!
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..i'm a people person!!
:o
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:) :) :) :) :) :) :) :) :) ;D ;D ;D ;D ;D GDAY GUYS IM JUST LETTING YOU GUYS THAT I REPLACED THE REAR SPROCKET ON SATERDAY AND IT DID THE TRICK AND I WOULD LIKE TO THANK YOU GUYS FOR ALL YOUR HELP IT WAS MUCHLY APRECIATED AND I COULDNT BELIEVE HOW FAST THE DELIVERY WAS CHEERS AUS 250
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Glad to hear it worked out for you ''down under''.
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...good show! aus250...
..i learned things from your delima....
;)
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:) :) :) :) :) :) :) :) :) ;D ;D ;D ;D ;D GDAY GUYS IM JUST LETTING YOU GUYS THAT I REPLACED THE REAR SPROCKET ON SATERDAY AND IT DID THE TRICK AND I WOULD LIKE TO THANK YOU GUYS FOR ALL YOUR HELP IT WAS MUCHLY APRECIATED AND I COULDNT BELIEVE HOW FAST THE DELIVERY WAS CHEERS AUS 250
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:) :) :) :) :) :) :) :) :) ;D ;D ;D ;D ;D GDAY GUYS IM JUST LETTING YOU GUYS THAT I REPLACED THE REAR SPROCKET ON SATERDAY AND IT DID THE TRICK AND I WOULD LIKE TO THANK YOU GUYS FOR ALL YOUR HELP IT WAS MUCHLY APRECIATED AND I COULDNT BELIEVE HOW FAST THE DELIVERY WAS CHEERS AUS 250
???
Hi fellow Aussie, can you tell me what your top speed is now? As our H/Ways up here in the Top End have a max of 110 -130 KM. EZRider
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..EZ..Welcome!!!
:D
..there are several Aussies here....
..some of my best friends are aussies...lol..
;D
peace
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..EZ..Welcome!!!
:D
..there are several Aussies here....
..some of my best friends are aussies...lol..
;D
peace
Hi to you wordslinger,
I am trying to get some input from Venox owners on the back cog mod. In the std form I can squeeze around 130 Km out of my Venox (max speed on our H/Way) in 4th, without going to full throttle, problems is that it vibrates so much that the back brake peddle nut came off and rounded the bolt down applying the back brake (not good). I have since added a 2nd nut to lock off the bolt.
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..wow..
...vibration of that magnitude could be caused by a screwed up tire..
..one would think that there would have to be a lot of ..mass out of balance.. to cause that much vibration...
..at what speed does it begin...
..is it incremental...get worse with higher speeds??
..is it coming from the front or the rear...should be able to get a "FEEL" from it's origin...
..or, it coulda just been a fastener that worked loose...
..my left-hand, center stand pivot shoulder bolt, backed itself out...
..the ONLY fastener that has ever worked loose on my scoot tho...
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Oil makes a difference too with so few km on your bike. Make sure you've done your first oil change at 1k km. The oil that's in there from the factory isn't the oil you wanna be running. The factory oil shipped in your bike helps the gears to mesh together properly (for breaking in the engine). I use a semi-synthetic oil.
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Hi Adri,
Yes the oil was changed at 1000KM, I have almost 2000Km on it now. I ordered the 44T sprocket from Kymco Biz (Power Sports in Prescott AZ, USA) it arrived yesterday. I still need to buy a chain locally & fit it, hopefully this weekend. Also your 10,000KM review on your web page was great. One of the reasons I purchased the Venox, that and the Honda Shadow 750 & Hoysung GV650 being $6000 AUD more.
EZRIDER. ;D
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Hi Guy's
Posting a report on my Veonx's performance, after fitting the 44T sprocket.
As you would expect, the pick-up has improved especially in 1st & 5th gear. Prior to the mod top speed in 4th was 145Km, dropping to 110Km in 5th (overdrive). The bike always seemed to struggle even in 4th once over 110Km hr, a week before the sprocket arrived I headed off on a day trip that was 150Km one way. Most of the way I was sitting on a max of 120Km hr, around halfway it overheated and I had to pull over & let it cool down. After that I left in 5th and kept it to a max 110Km without any problems the rest of the way or on the way back. Since fitting the sprocket the bike has lost 10Km of the top speed which is now obtained in 5th not 4th gear. The bike now max's out in 4th at 120Km screaming at the high end, while 5th will now pull 135km wide open & flat out . The main improvement is that the bike now feels right throughout the gear range, especially 1st that had a real long throw and took some getting use to! It was comforting watching even the mechanics stall the bike in 1st (twice) while taking it into the workshop for it service.
The other plus is that the little bike will now sit on 120Km hr very happily without over heating, and if you need a bit more to get up hills, etc it still has more without throwing down to 4th.
I highly recommend it to anyone who has a lot of headwind as we do here, it makes all the difference.
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Hi Adri,
Yes the oil was changed at 1000KM, I have almost 2000Km on it now. I ordered the 44T sprocket from Kymco Biz (Power Sports in Prescott AZ, USA) it arrived yesterday. I still need to buy a chain locally & fit it, hopefully this weekend. Also your 10,000KM review on your web page was great. One of the reasons I purchased the Venox, that and the Honda Shadow 750 & Hoysung GV650 being $6000 AUD more.
EZRIDER. ;D
First off glad you're enjoying the Venox now. Also thank you for the feedback on the site, ezrider =)
Tucking down will make a huge difference, and I've noticed even wearing a beanie helmet instead of my fullface also seems to slow me down a bit less (ah, the wonders of a small displacement bike). If you plan on keeping your Venox for a while check out the site for the baffle mod (be sure not to remove them completely), and if you're looking to add some functionality, consider grabbing the sissybar and luggage rack (I can now carry beer, women, and luggage much more easily).
Ride safe, have fun, keep us posted!
PS: Overheating? Hmm.. The light came on? I haven't had it happen since installing the 44-tooth sprocket, and I took her on a couple 400-km rides. Our weather is probably a lot different though, I'm in Canada, and I think this is your summer season(?). Did you stop to listen if the rad was doing its thing before turning her off? All's well?
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Hi Adri,
Yes the bike is running great now. No difference in power or top speed to my mates Honda shadow VT400 Cruiser, only half the price. Depending on the headwind I can obtain a top of 140 KM per/hour (half face helmet). I had the overheating problems fixing a couple of weeks ago, it was a faulty thermostat switch that was fixed under warranty. The dealer's mechanic was impressed with the performance of the bike with the 44 tooth sprocket fitted. He had to check the overheating problems, so he got to ride it long and hard. He tells me that they are think of ordering the sprocket to hold in stock, as well as fitting one to the demo bike; can only help with sales.
As for the weather we are down under, so we are opposite to your seasons. I am located at the Top End of Australia, our city is the closest to Indonesia so our seasons are tropical Wet (high humidity & rain for 6 months) or Dry (No rain low humidity). Most people who first move here from Southern States of Australia that have four seasons (including snow in some parts) call it the hot and hotter seasons.
So in short the bike is always running between the high end of 32 -42C
I plan to either purchase the power pipes for $650 supported by the Dealer, or wait for the remaining 1.5 year warranty to finish and do the baffle mod that is not supported by the dealer. I have read that
jetting must be change even when packing the babbles out.
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Hmm, I've hit an indicated 150 after the sprocket mod, in 5th gear... but I've had to tuck down real low and don't weight very much ( < 140 pounds).