Scooter performance issues.

[aeroxbud]

Did you fit harder springs to the clutch? This will increase the RPM at take off. Putting you into the power of the pipe.
If you rev last the power band, it will drastically lose power. Look at this graph.

static.pedparts.co.uk/c/asset/sports-pipe-blog/50cc.png

[bomzs]

Aug 1, 2024 15:06:29 GMT -5 aeroxbud said:

Did you fit harder springs to the clutch? This will increase the RPM at take off. Putting you into the power of the pipe.
If you rev last the power band, it will drastically lose power. Look at this graph.

static.pedparts.co.uk/c/asset/sports-pipe-blog/50cc.png

Yeah I did, they came with the exhaust (the 4.8 g roller weights included)

[pinkscoot]

Are you using stock clutch springs?

[bomzs]

nope, red clutch springs if you're talking about the small 3 ones

[bomzs]

Jul 31, 2024 5:28:11 GMT -5 aeroxbud said:

The TT makes peak power at 8,500 rpm. You need to try and get close to that with the roller weight.
A cheap tachometer would help. They are not a lot of money.

yeah so I checked the RPM's and it guess it maxes out at like 8.2k with 5.7 grams btw

but it's still slow?

I mean the roller weights are doing their job because it reaches 8.2 k fast but it just seems like the wheel or something can't catch up

[bomzs]

Also is 75 main jet even needed? Should I lower the size? Honestly by now I really don't understand what's going on with my scooter, I mean I changed the exhaust roller weights clutch springs (the 3 small ones) and It's like almost the same as stock