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Robbe Cuatro - Millennium - Nova - Dyna-X > Mille w/OS91 dead spot in throttle response
 
 
heliman454
Heliman
Location: Logan, Utah

I recently put a OS 91 in my Mille with 15T pinion, I have two gallons through it. Problem: If I climb out and then reduce power (to around idle) to decend the engine seems to hesitate for 2-3 seconds after advancing throttle before spooling back up. I have leaned the main needle from the factory setting of 2 turns out down to a 1-1/4 and seems to get a little better, but to keep the idle smooth I have to turn the idle mixture screw out from 1/2 turn out to almost 1 complete turn out, which brings back the hesitation problem. When I turn on the governor there seems to be no problem. Any suggestions on needle settings?
Muffler: Hatori one piece
Fuel: Cool Power 30%
Glow Plugs Used: OS#8, Enya #3, Enya #5
Blades: V-Blades 700's
04-10-2002 Over year old.
 
 
RCMarket
Key Veteran
Location: Belgium , Europe

answer

are you using also the full conversion kit?
its important since the clutch, as heavier fly wheel, special fan, have a high effect on all the behaviour.
04-10-2002 Over year old.
 
 
heliman454
Heliman
Location: Logan, Utah

I am running everything in the conversion kit except the heavier clutch. It doesn't seem to be a flywheel problem. I have heard of several people running the 91 without upgrading the clutch, without mention of this type of hesitation. I think the problem is in needle setings. What have you guys found to be good needle settings for both idle adjustment and main needle???
04-10-2002 Over year old.
 
 
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Robbe Cuatro - Millennium - Nova - Dyna-X > Mille w/OS91 dead spot in throttle response
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