MOPED ARMY

i'll count out my gears when i get home from work and post those up here.

I've read alot about the clutch tuning... i'm not sure i quite get it though. Tell me if this is right... By changing my gear ratio for more speed my low end will get bad. If i then tune the clutch to engage at higher RPM's it will help compensate the low end loss due to the gear change.??

Increasing jet size only equals more speed if you're running way too lean with the setup you've got. If your moped is running well now, throwing a bigger jet in there will make it run slower because your fuel/air mixture will have too much fuel for the moped to get maximum performance.

Yes, if you change your gears to a higher ratio, you will lose acceleration. I have no idea if clutch tuning can improve that, so hopefully someone else will jump in and answer that part of your question.

If you want a relatively simple modification that will net you some extra performance, a performance exhaust is a good place to start. It's more expensive than sprockets, but the cheap ones are still cheaper than a kit. You can read up about them on the wiki, and you can get them from Treats. If you want other ideas, you should check out the Performance Tuning category.

"By changing my gear ratio for more speed my low end will get bad. If i then tune the clutch to engage at higher RPM’s it will help compensate the low end loss due to the gear change.??"

YES! You can't totally make up for a gear ratio biased in favor of low end with clutch tuning, but you can make it MUCH more realistic/rideable.

Does it matter what gear i change? If i swap my rear 45 for like a 40. (which i think would mean in turns 2.25 front/ 1 back) would that get me to 35mph? Or if i leave the back alone and change my 16 in the front to an 18 (Turns = 2.3front/ 1 back) which one of those would be faster with out completely killing my low end??

So... open up the air box and re-jetting will give me the speed i want??

I saw on another thread a guy figured the percentage of speed gain you would get by moving from a 16:45 to a 16:40. How do you figure this out? i am thinking of moving from a 16:45 to an 18:45

16:45 does 30mph with no problem, what could i expect from a 18:45??

18/45 gearing WILL completely destroy your low end, especially with a stock pipe and aluminum series cylinder.

bump

How sensitive are these stock clutches? For example if i tightened the springs in by one 1/2 turn to the right, what would that do? Or should i go in one full turn to the right?

So i should be alright moving the screws in at 1/2 turn steps till it feels right?

I turned them in one turn and will report back

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with a stock set up, would i need to rejet because of the pipe? Or would the pipe on its own give me more power from my stock set up

yeah no kit yet... still taking baby steps into the tuning. gonna start with the gears and clutch and see how i like it... next would be carb and pipe... then eventually i would move up into the higher CC class.