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I think the screw on the carb is on the bottom of it... I have to take all the plastics off the back of the scoot to get to it. I can't seem to get to it.

Hey fellas.

So that didn't solve the issue like I'd hope it would. I guess a better way of describing the issue that I am having is more of a bog under acceleration. Now that it is really warm out, it's seems to be getting even worse. Anytime I accelerate, when it's warm out, it does this. After googling the issue a bit further, everything is starting to lead to a possible bad ignition coil. Although, honestly, I have yet to replace the spark plug. Would a faulty spark plug cause this? I figured that if it was a plug, that it would just not give spark anymore, instead of sometimes working.

I only use high octane fuel, and the carb that is in the bike has maybe 1k miles on it. I'm up for any suggestions at this point.

Thanks as always.

Hey Alley,

It starts slipping at about 20mph all the way up to say 45 or 50 which is the speed limit where I drive. However, once it's at that speed, the stutter still occurs, but it's less noticeable since I'm already up to speed. Mainly, anytime I accelerate it happens...once it's warmed up. On the way to work in the morning, I never have this issue. I'm assuming the temperature is affecting this in some way, but I could be wrong. This issues happens on the way home everyday for me.

I will try the sand paper this weekend for sure. Should I sand the inside of the drum where the pads make contact as well?

Thank you.

A while back, maybe 4 months ago, I had my variator replaced at a repair shop, and my belt. The issue I was having was the scooter felt like it was slipping under acceleration once the scooter warmed up. Unfortunately, replacing those 2 things didn't resolve the issue. The scooter now has almost 1900 miles on it, and it still slips occasionally once it warms up. Any one else seen this issue before?

The only thing that I have not replaced under the cover would be the clutch assembly. If I'm going to do this, I don't really want to buy a stock clutch again. I'd rather go with a performance setup, but I don't care about gaining acceleration or anything like that. I'm happy with how it drives now. Anyone know of a good clutch assembly to replace a stock stock clutch for this scooter?

2008 yy250t


Thanks fellas.

Justin-

Fixed! Just wanted to hop back in here and tell you guys thank you. I went with the locktite, and made sure to add the right amount of torque from the impact wrench, and all went well. I don't think that the shop used locktite at all last time around(which was 1 month ago...). I almost feel like giving them a call and giving them a piece of my mind... bah whatever... I just will never go back there.

Thanks again fellas, hopefully this thing never rattles loose again.

-Justin

Thank you! This will be the first time I use an impact wrench... I'd be lying if I said I wasn't scared that I was going to strip something. Also, once the fan is on, shouldn't there be a washer before I put the nut on? When I removed the cvt cover, there wasn't a washer anywhere to be found, and honestly, I don't remember seeing one ever.