Honda Spree and Elite 50 Forums

I've had 3 kevlar belts so far with mixed results. The first one lasted for ages, but exploded spectacularly when my engine seized at speed (entirely my fault). :oops:

The replacement I got snapped within 2 days for no obvious reason, and the replacement for that one has been going great so far ...

Sweet - glad you got it sorted

My grease solution seems to be working well too, after a few weeks of riding. I've still no idea *why* though

A quick update on this one. I've never put grease on my roller weights before, so as an experiment, I added a little light lithium based grease to each roller.

Now I'm not sure exactly why, but it's had the effect of keeping me in the lower range for longer, which is exactly what i wanted! :D I now ...

Having looked into it, the only uprated center spring I can find is 20% stiffer, which is too much I reckon.

I think I'll try to find a slightly shorter/narrower belt than the one I have, but not as small as the stock one. That would change the gearing too much - my poor engine would be screaming ...

I have already installed an upgraded contra spring once on my bike already (1000rpm) and once on a friends hyosung rally.

Did you try the upgraded spring before or after the bore upgrade? I'm just wondering how a 50cc would be with a 10% stiffer center spring.

The tacho looks cool, btw, I'll ...

I have already ordered a stiffer rear contra spring from vt cycles and will update when I have it installed.

Cool! 8) I look forward to hearing about it. I spoke to a bike mechanic friend and he mentioned the center spring was a right PITA to install - I hope your install goes ok!

At the risk of ...

Since the belt is not dropping all the way down or prob not more then half way means the transition is not a broad as it is supposed to be
low range - belt low in front , high in back

W/C, can you explain this one a bit more? I still don't fully get it. If my belt wasn't dropping all the way down ...

Mine is an AF27 Dio, the CDI units didn't come in until the AF28. The only restriction on mine was the front pulley, which is long gone!

Like I say, top speed is NOT a problem. The gearing in the mid range is the issue here.

I'm happy with my top speed, I don't need any more top speed. 50mph on a 'ped is scary enough! :D Also, the revs are nice and high off the line, so the clutch springs are ok.

The problem is in the mid-range (about 25mph), where the revs drop out of the power band for a while. I actually *want* to ...

Hi W/C, I have a 'high-speed' front pulley, not a stock one, so that should be fine. I tried heavier weights, but it didn't affect the top speed - 6.5g seems to be the sweet spot.

On the clutch I have, the center spring holds the rear pulley closed, which is like first gear. When it's fully open ...

Sounds like you need new clutch pads asap! The outer shouldn't be blue - maybe all that heat is stopping the clutch lining working properly?

New springs are a good idea while you're in there, they're pretty cheap. Uprated ones will raise the pickup point, which is only useful if you have a ...

Hi, thanks for the replies. The scoot is plenty powerful, the top end is awesome, and the plug is a nice chocolate brown.

The problem is with the gearing.

I think the driven pulley is opening all the way up too soon, so I'm in "top gear" too early, around 25mph. This means that the revs drop too ...

Hi all, it's my first post so go easy on me ;)

I've got a 1990 Dio AF27 with the following mods:
- high-speed pulley
- 6.5g roller weights
- Dio ZX belt (longer & wider than standard)

Also, the engine was rebuilt recently (new piston & rings). I do mostly highway riding, so I've set it up for ...