Am I getting the correct performance

So I recently rebuilt my whole bottom end and top end on my moped I put a 70cc kit with high comp head, 27 x 22 sprokets, I believe 20lb first gear spring, 15 mm sha carb with 76 jet, 15 mm intake. Does 40mph sound about right for top speed? I also know I have a airleak at the intake because when I spray carb cleaner on it, it idles very low but I have turned it to idle fine with the airleak.

Re: Am I getting the correct performance

Vacuum leaks can kill performance so fix that first then see what it does.

Re: Am I getting the correct performance

Airleaks also kill pistons. You know where it is, fix it. They only get worse.

Re: Am I getting the correct performance

Strangely enough , air leaks never seem to fix themselves and always cause havoc . ;)

Re: Am I getting the correct performance

Luckily you have one of the easier leaks to fix. As everyone said, fix it now and enjoy a longer lasting engine and possibly better performance. I’d spend the 15 minutes and 5 bucks and replace the gasket.

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