KymcoForum.com
Scooters - 125 to 300 => Downtown 300 => Topic started by: kneeslider on February 28, 2014, 03:12:52 AM
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According to the owner's manual, it says to INSPECT at every service interval of 5000km.
The service manual says to replace the belt at 20,000km.
In between, how is a good way to judge the condition of the belt, should it not last the 20,000 recommendation?
I have had the belt of my small 150cc snap twice, both at around 6,000kms. I do not particularly want to re-experience that of a maxi-scoot.
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Hi there ,the service manual recommends you to check the belt because of different driving styles and conditions ,it is a good practice to check the state of the drive belt each time you change engine oil ,ie 5000km ,and any suspicious looking belt ie cracks ,loose fibers,uneven wear should be detected .Normally with normal daily commuting the belt should at least last 20,000 to 25,000 km but as i said earlier it depends upon each individuals driving style.It is a very bad experience to break a belt in the middle of a highway ! :-[
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Which wears a belt out more?
Start-Stop traffic or highways?
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Aggressive take-off and prolonged top end speed can shorten belt life ,so if you use your scooter as such, you should definitely check your belt regularly.
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Hi there ,the service manual recommends you to check the belt because of different driving styles and conditions ,it is a good practice to check the state of the drive belt each time you change engine oil ,ie 5000km ,and any suspicious looking belt ie cracks ,loose fibers,uneven wear should be detected .Normally with normal daily commuting the belt should at least last 20,000 to 25,000 km but as i said earlier it depends upon each individuals driving style.It is a very bad experience to break a belt in the middle of a highway ! :-[
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You change the engine oil every 5000km? (is your scooter a 1.8 liter, 4 cylinder?)
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Yes, I change the oil every 4000-5000kms. Together with the gear oil. And both I use full synthetics.
My big bike every 5000kms or 1 year, which ever comes first, but she's on semi-syn.
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Hi Stig ,according to dt300i service manual,the very first oil change should be done at 1000km ,then it should be done after 5000km or 6 month , whichever comes first.And no my scooter is not 1.8 liter ,4 cylinder. 8)
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Here's the proof .
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I think I'll just do the belt replacement at 10000kms, which should be in about 2-3 months.
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The belt can be quite pricey depending where you get it from. It's not difficult to open up the CVT cover and have a peek inside. My belt looked fine every time I've had a peek, so I am waiting until 20000 km from 15000 km. If you plan to do a long trip, then it wouldn't hurt to pack a backup belt.
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Here's the proof .
I do not disbelieve you fellows re. the manual.......I just think it is cheap insurance to change the oil much more often than that in a scooter engine. Goodness, it must be very hard & require several quarts to change the oil in your big scoots.
Old school here -I change the oil in all my cars at 3000 miles.
Stig
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I do not disbelieve you fellows re. the manual.......I just think it is cheap insurance to change the oil much more often than that in a scooter engine. Goodness, it must be very hard & require several quarts to change the oil in your big scoots.
Old school here -I change the oil in all my cars at 3000 miles.
Stig
I used to change the oil in my truck that often. That is , until my ( very trustworthy ) mechanic told me it was just a waste of money in a newer vehicle . Now, I do it twice a year ( for seasonal change ) . Probably still close though, because, as a 2004, it has only 55,000 miles on it
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IMHO, I do not think a 5000km interval for an oil change especially for full synthetic oils to be a big number.
Oil doesn't get stressed from the constant high rev due to the CVT, they get stressed more from start-stop traffic.
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If you measure the belt across the top section they use 1.5mm as the wear limit. Just for example a new belt is 27.6mm The wear limit is 26.1mm
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If you measure the belt across the top section they use 1.5mm as the wear limit. Just for example a new belt is 27.6mm The wear limit is 26.1mm
Thanks for the easy reference, Zombie ;D
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Hi there ,I don't think belt width wear is the only factor to consider before changing ,but one should examine the belt closely for signs of crack and fibers coming loose mainly if your service period has expired ,as breaking a belt when driving at high speeds can also damage the rollers and it can has disastrous consequences . :-[
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Of COURSE if it looks like a Furbie but still measures in spec... Replace it
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knee slider is your belt the same size as the 300i downtown 1004 mm. x 25.2 mm. with 30 degree I have bought 2 belts so far and they measure 1004 x 24 mm. so they are worn out brand new,. but they work very well,. and I have put 30,000 km. on the original belt and it still looks good, just a few cracks when you bend the belt tight, and it is still at 26 mm. , tops out at 144 km. per hour, I have not tryed down hill with a tail wind yet,. dressed to ride 230 lbs. 6 foot tall, and to old to do this often,. Don
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If you use 1.5mm as the wear point from whatever it actually measured new, it suddenly goes from "worn out new" to new that has 1.5mm yet to wear.
See how I did that?? Taa Daa!
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knee slider is your belt the same size as the 300i downtown 1004 mm. x 25.2 mm. with 30 degree I have bought 2 belts so far and they measure 1004 x 24 mm. so they are worn out brand new,. but they work very well,. and I have put 30,000 km. on the original belt and it still looks good, just a few cracks when you bend the belt tight, and it is still at 26 mm. , tops out at 144 km. per hour, I have not tryed down hill with a tail wind yet,. dressed to ride 230 lbs. 6 foot tall, and to old to do this often,. Don
I have no affirmative info on this but i contacted Malossi and they replied that the DT200 and DT300 belts are different. Anyone can chime in on this? In Malaysia, only the DT200 is available so I can't just pop into the dealership and ask to compare the two belts.
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I do not disbelieve you fellows re. the manual.......I just think it is cheap insurance to change the oil much more often than that in a scooter engine. Goodness, it must be very hard & require several quarts to change the oil in your big scoots.
Old school here -I change the oil in all my cars at 3000 miles.
Stig
I change my engine oil every 10,000 miles since 1998
(MB229.x approved engine oil which can be found at Wally for $26/Gallon)
Currently I've got 200,000+ miles on it and still runs great.
For busy people like me, I just can't imagine those time, money and effort you need to waste if you fo it every 3000 miles
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I would trust Malossi more than I would trust me if I were you.
Just sayin'
Go to Stadium Yamaha, and look up the numbers... That will confirm it for you
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Question to those who are using malossi belt instead of mitsuboshi ,the belt life of 20,000 km is the same for both belts ?
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In MY experience Malossi last about 1/3rd as long but perform better. They are a softer compound that resists slipping but they tend to wear out faster
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so the malossi belts last about 6000 km. do they cost $35.00 the mitsubossi belts last + 20,000 km. and cost $ 100.00
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Malossi now have a X-Kevlar belt that is supposed to be indestructible.
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Malossi's always cost more than OEM. I did use one for my speed runs but switched back to a Bando for street use.
The X-Kevlar is the belt I am talking about. When they hit their wear limit they do NOT give a ssignal or warning. They EXPLODE into a thousand pieces, and usually cause ALOT of damage when they do.
I used to recommend them all the time for street use but i Whole Heartedly recind that recomendation, and sugest they be used for TRACK USE ONLY. They grip instantly for power but when they do fail it's a show.
The last one I used on the street for an extended time (3-4 thousand miles) blew, and took out the variator, as well as the crank bearing on that side of the engine.