CVT issues/questions

justscootin

Member
With 58000 miles you have almost double what I have. What has been done on your scooter maintenance wise

In order if possible

I didn't see anything in the pictures that caused me concern. With just over 58k miles on mine, I've done more than a couple belt/roller-slider/clutch replacements.

The rattling at idle could definitely be from worn variator guides. I just replaced mine and it's amazing how much quieter it is.
 

chivas750

New member
Hi, guys how much gear oil are u pouring into the final transmission? 500ml or 750ml?

Sent from my Mi Note 2 using Tapatalk
 

Richardus

New member
So I don't think I'm hijacking this thread any more as there has been no posts for 2 years. Just want to follow up on the whole replace belt and rollers thing. My C650GT is at around 15000km and still seems to run fine, but I keep reading snippets about how I'm supposed to change belt and rollers soon. Now I'm not sure what to do. As justscootin was saying above, maybe I don't need to, or maybe I should get it all inspected at some point, as long as I can find a mechanic that knows what they are looking at, hard to find anyone that even works on scooters much less know much about them. I guess downloading some manuals for the tech might help, but at this point, unless I run into a problem, I should just keep rolling until I get a problem, or I hit around 20k (kms)
 

davidh

Member
So I don't think I'm hijacking this thread any more as there has been no posts for 2 years. Just want to follow up on the whole replace belt and rollers thing. My C650GT is at around 15000km and still seems to run fine, but I keep reading snippets about how I'm supposed to change belt and rollers soon. Now I'm not sure what to do. As justscootin was saying above, maybe I don't need to, or maybe I should get it all inspected at some point, as long as I can find a mechanic that knows what they are looking at, hard to find anyone that even works on scooters much less know much about them. I guess downloading some manuals for the tech might help, but at this point, unless I run into a problem, I should just keep rolling until I get a problem, or I hit around 20k (kms)
How many miles on that 15k KM belt? You won't actually notice much performance difference (it doesn't affect how the bike 'runs' at all). Belt/roller replacement is on the schedule at 20k KM but if you have several years on the current belt I'd err on the side of caution and replace sooner rather than later. The belt/roller service isn't that difficult and only requires one specialized (inexpensive) tool.
 

Richardus

New member
How many miles on that 15k KM belt? You won't actually notice much performance difference (it doesn't affect how the bike 'runs' at all). Belt/roller replacement is on the schedule at 20k KM but if you have several years on the current belt I'd err on the side of caution and replace sooner rather than later. The belt/roller service isn't that difficult and only requires one specialized (inexpensive) tool.
It's a 2013. I bought it in 2016 with only 50 km on it, so it was in brand new condition when I got it. I've been driving it since, so in 3 1/2 years I've got it up to 15000 kms. (9320 miles) The only "issue" i've ever noticed is it makes a bit of a howling noise when accelerating if the weather is cold and damp and it's not completely warmed up, but I've been told that's normal. If I'm going to invest a thousand bucks into preventative maintenance I guess I want to make sure it's a worthwhile investment. I'm considering waiting one more year and get it closer to 20,000 kms. (12400 miles) then decide if I'm going to sell it and buy another bike, or fix it up and keep driving it. I'm certainly happy with the bike, and it's proven itself on long trips, I just dont want any issues down the road.
 

davidh

Member
It's a 2013. I bought it in 2016 with only 50 km on it, so it was in brand new condition when I got it. I've been driving it since, so in 3 1/2 years I've got it up to 15000 kms. (9320 miles) The only "issue" i've ever noticed is it makes a bit of a howling noise when accelerating if the weather is cold and damp and it's not completely warmed up, but I've been told that's normal. If I'm going to invest a thousand bucks into preventative maintenance I guess I want to make sure it's a worthwhile investment. I'm considering waiting one more year and get it closer to 20,000 kms. (12400 miles) then decide if I'm going to sell it and buy another bike, or fix it up and keep driving it. I'm certainly happy with the bike, and it's proven itself on long trips, I just dont want any issues down the road.
Given that it's seven years old, I'd definitely replace the belt. And yeah, different noises are normal -- I wish it sounded a little less like a tractor but it's been good overall. I have >63k miles on mine and no major issues. It's a BMW so anything is going to be costly but never had anything horrible happen.
 

Richardus

New member
Given that it's seven years old, I'd definitely replace the belt. And yeah, different noises are normal -- I wish it sounded a little less like a tractor but it's been good overall. I have >63k miles on mine and no major issues. It's a BMW so anything is going to be costly but never had anything horrible happen.
Hi Dave, I'm not questioning your judgement in any way, but just in the interest of discussion I can't help but wonder why changing the belt simply because it's old would be a viable reason to do this. My thinking is that if I buy a new belt it would probably be from China or Taiwan and has probably been sitting in their warehouse since 2013 anyway. It's just as old as the one I'd be replacing. To me it's more about determining it's wear and tear and adjustment. I guess the only way to know that is to take it all apart regardless, and if you've gone that far, you may as well put a new belt on while you're there. But certainly not based on it's age.
 

davidh

Member
Hi Dave, I'm not questioning your judgement in any way, but just in the interest of discussion I can't help but wonder why changing the belt simply because it's old would be a viable reason to do this. My thinking is that if I buy a new belt it would probably be from China or Taiwan and has probably been sitting in their warehouse since 2013 anyway. It's just as old as the one I'd be replacing. To me it's more about determining it's wear and tear and adjustment. I guess the only way to know that is to take it all apart regardless, and if you've gone that far, you may as well put a new belt on while you're there. But certainly not based on it's age.
Feel free to question all you want; I'm definitely not an expert. :)

I guess my concern with a 7-year old belt is that the rubber and other materials degrade over time and a failure of that belt could lead to some really bad consequences. At best, the engine stops moving the back wheel. At worst, it shreds itself and locks up either the back wheel and/or engine and leads to expensive damage (or possibly death if it were to happen at 70MPH. I definitely can't say that a new belt hasn't been sitting around for awhile but I haven't looked for datestamps on any of the ones I've received.
 

justscootin

Member
With this bike at 7 years 50000 plus your 15000 if the previous owner did no maintenance (I do not know the history) the belt is long gone and may have also cut grooves in the variators. And the chain will have a lot of slack slapping around as another owner had experienced a broken sprocket

So as for maintenance you could be looking at a

Possibly a rear sprocket
Chain adjustor # 3
A belt
Possibly a set of variators
Transmission fluid change
Valve adjustments
Brake fluid
There is also an oil seal behind the clutch that seeps oil and destroys the clutch may need to be replaced (I have posting and pictures on this forum if you can find it (maybe 3 years ago)
And recalls (free)

I believe a lot of owners hear the price tag of maintenance they walk and take the chance then sell
 
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