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Post by chuckd420 on May 7, 2024 2:11:31 GMT -5
I'm looking for suggestions on a carb for my 03 Zuma. I will be upgrading from the Top Performances Trophy 70cc kit that I have to the Stage6 Sport Pro MKII. I plan on replacing the stock crank with a Malossi MHR 12mm and will likely get the Yasuni City 16 to replace the Stage6 Pro Rep that I have currently. With this setup I know the 17.5mm Delorto I have wont cut it. I'm not sure if a 19 or 21mm would be better for this setup. Does anyone have any suggestions on the size and type? We are 5,280ft above sea level here if that helps
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Post by Zino on May 7, 2024 7:06:32 GMT -5
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Post by chuckd420 on May 8, 2024 1:52:00 GMT -5
I wonder if the 17.5mm is restricting the amount of power the scooter could make. Also, I would like to know what kind of temps he hits on a stretch with WOT. |
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Post by aeroxbud on May 8, 2024 2:46:03 GMT -5
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Post by Zino on May 8, 2024 7:37:47 GMT -5
You will be able to test it yourself
You already have the 17 dellorto
Rebuild your scoot run it with the 17 and then swap on the 19 .
I have run both on Zuma builds
Temps at wide open mile long runs were similar when I tuned the carbs for best performance .
On my builds that peaked under 11,000 rpms
By my Butt Dyno I noticed no difference also Top speed was also similar the wall of wind puts a cap
With a real Dyno the 19 would show better acceleration and top speed
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Post by chuckd420 on May 9, 2024 1:10:24 GMT -5
Thank you for the input guys. I think that I'll keep with the 17.5mm for now and spend the money elsewhere with the rebuild
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Post by Zino on May 9, 2024 7:06:24 GMT -5
Add gears they will do more for top end than any carb
I would expect add 5-7 mph with your set up
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Post by chuckd420 on May 10, 2024 1:51:57 GMT -5
Add gears they will do more for top end than any carb I would expect add 5-7 mph with your set up I was thinking the same. I'm pretty sure that I have a set of 08 Zuma secondary gears that I could swap in too   |
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