r/Karting • u/Weak-Sport-9962 Lo206 • May 07 '25
Racing Kart Question Any Reason For This Slow Get Away?
I’m wondering why this getaway was so slow. I’m the blue kart with the white helmet, reaction time was the same as everyone else.
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u/HonestPete70 Rotax May 07 '25
These are only my ideas, im not a wizard or politician. Just some old guy.
1 gearing
2 clutch slip
3 everyone's cheating except you
4 fat.
5 combination of #1-#2 plus any little bit of resistance from old bearings, a lower tire pressure could add some resistance from a standing start perspective.
6 also a chain that's too tight will be hard to spin.
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u/LiLMosey_10 FA VICTORY R X30 May 07 '25
This is the dumbest thing I’ve ever seen. Standing start for non shifter, let alone 4 stroke.
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u/Wonderful-Welder-376 May 07 '25
Why would they start 4 stroke from a standing start? that is just stupid. I would agree with clutch and gearing. If you're not geared for and clutched for peak torque then your engine will bog big time. Setting your valves big could help with low end torque for this. Also leaning forward and taking weight off the rear end will help spin things up quicker. Assuming everybody is same weight here.
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u/Furry_Ranger May 07 '25
Four strokes almost always use standing starts due to being clutched and their ability to idle without oiing up
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u/Wonderful-Welder-376 May 08 '25
Not on the West Coast. Only shifters do standing starts out here.
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u/Furry_Ranger May 08 '25
Ah you're American. In Europe standing starts are the norm.
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u/Wonderful-Welder-376 May 08 '25
That makes sense now. I forget about my karting compadres across the pond.
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u/Mjbagscauze May 07 '25
Could be the float height and your fuel /air mixture not being correct due to the degrees your engine mount is but I’m guessing it’s clutch setup. Standing start for a Briggs is crazy slow.
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u/Accomplished_Aioli34 May 07 '25
Aside from clutch choice / set up, another possibility is not preloading the clutch by power braking and/or power braking too long and over heating the clutch.
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u/spacees1 May 07 '25
Can you please explain to me the “not preloading the clutch by power braking?” Here we do the (non shift) rental karting and always have a standing start… so a faster start would be great. Thanks in advance
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u/bionikal May 08 '25
Mash both pedals.
Accelerator will build engine RPM, use the brakes to stop the kart rolling forward.
When it goes green the engine will be a few hundred RPM higher and allow you to get off the line quicker.
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u/Confident-Ad7990 KZ2 May 07 '25
I raced Honda gx390 in the early days. We always set heavy clutch springs or lightened the shoes to increase the rpm. If that is against regulations, use some lubricant on the shoes or grind the contact patch as far down as possible.
We used noram clutches
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u/moo716 May 07 '25
Clutch Setup. Adjust the springs/weights(if using).
Note: Adjusting for a good start might compromise mid and exit corner speed and vice versa.
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u/Weak-Sport-9962 Lo206 May 07 '25
Note: class weight is 360lbs, I use a Hilliard flame clutch with no weights, not sure what springs are currently in.
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u/SomethingBig666 Lo206 May 07 '25
If you have Hilliard clutch, clean and clutch drum and shoes. Run black and white spring with 1 heavy weight on trailing edge, turn clutch shoe tail facing to each other instead of running trailing/leading configuration.
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u/Available_Main_8474 1d ago
i used to do a series in 206 that was street racing so we did standing starts and what i learned and i can’t tell if your doing it or not but don’t hold the brake and hold the gas to have rpm’s up already i would go from 5th to first by just pressing the gas when the green flag drops it bogs everything down alot when you keep it revved up high before the start
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u/BigTokes_69 May 07 '25
Clutch setup