idle screw question

[HSPbackwash]

i have a HSP nitro buggy and i was wondering how many turns should the idle be screwed out and how many turns out the HSN and LSN should be because my manual tells me absolutely nothing.

 

[MrClean]

I'm surprised that the manual doesn't tell you what the factory settings are, that doesn't speak well of the company that produces that rig.

 

[jack_mcgill]

for your idle screw, you want to set it so your carb opening is about 1 mm at full close position,

try setting your low speed needle flush to the carb body,and 3 turns out on the hspeede needle,that will be rich but might be a good start point

 

[olds97_lss]

The settings jack_mcgill gave are average base settings for many engines, or close to it. I'd adjust the high speed to 4 turns out though. 3 is a bit light for a base setting on many of the engines I've had.

 

[olds97_lss]

2.5 HSN is factory for his engine. You guys are all about the big blocks aren't you?

Ah, good point...

 

[jack_mcgill]

mehh ..i said 3 turn just so hes on the safe side just in case..my 18 cvrx is 2 turns on the hsn but i know for some engines that will be too lean.

 

[HSPbackwash]

thanks guys

 

[TWOCANE]

I have a HPI .26 on my OFNA buggy and just start at flush when all else fails

 

[HSPbackwash]

whats flush

 

[MrClean]

whats flush

Flush = even. So when someone says, set the idle needle flush with the carb body, that means the screw is not sticking out or in, it's flush with the body.