1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Is cornering bog on Dellorto unavoidable?

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Old May 2, 2011 | 07:48 PM
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From: South Jordan UT
Is cornering bog on Dellorto unavoidable?

I did an autocross yeaterday and in LONG rights, I was getting a big bog for a couple of seconds. I naver have this happen on the street but I'm not too surprised by that. I have recently rebuilt the carb and it's running pretty good but can I "tune" the bog out? As always, any help is appreciated.
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Old May 2, 2011 | 08:49 PM
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It could be because your float level is off a little bit or maybe your pressure is little low.

I have a mikuni which is very similar to the delorto and do not have any turning bog at all.

I say experiment with float level and fuel pressure and see if it helps.
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Old May 2, 2011 | 09:10 PM
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Raise your float 1mm so there is 14mm from tip of float to tip of lid gasket. That'll put more fuel in the carb and greatly reduce right turn stumble.
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Old May 3, 2011 | 10:07 AM
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^^^+1

I have mine set at 14mm as well. Seems to deal with it a lot better.
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Old May 3, 2011 | 10:14 AM
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From: wpg man can
If you can't correct it ,email me and I will offer you a solution.........works like a charm.......
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Old May 3, 2011 | 12:55 PM
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From: Yaizu, Japan
Just raising the fuel pressure was enough for my DCOE. I still get a tiny hiccup on some off-camber right-hand corners, but it's nowhere near as bad as any of the 4-barrels I've tried. I guess if I really cared I could try raising the float level, but eh.
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