Hi to all . I've been running the picco boost .21 '13 engine so reliably that I forgot everything about the factory or base settings !!!! I changed fuel tubbings and hell broke loose !! Someone please recommend something for a well broken in motor... and from then on I'll + - tune it .

Base settings for the 5TR are HSN = 1/2 to 3/4 turn in from flush with the housing. LSN = flush to 1/2 turn in from flush. Idle screw = 3/4 to 7/8 turns in from fully closed (look at it with the carb insert removed).

Performance settings are fuel, location, and temperature specific, so you can't use anyone else's settings for your motor. Start at the base settings, and tune it for your conditions. Get it to scream on the top end, then tune the bottom for a nice, stable idle.

If you're in the ballpark, HSN should be around 1 to 1 1/2 turns in, and the LSN 1/2 to 3/4 turns in.

Approx 1/2 in from flush on high speed and flush on low speed. This is only approx.

Here is a PICCO tuning guide I posted on the website to help anyone with any questions.

http://www.tritonrc.com/picco%20tuning%20guide.htm

hey guys I've got a pico boost 28 and am coming from tuning novarossi engines and need a little help or guidance on how to tune this bad boy as I've heard they're a little different to tune than novas. any help is appreciated. thanks a bunch

Start Break-in HSN 1 turn out from flush LSN 1/2 out from flush

Normal running should be like stated above:

HSN 1/2 turn in from flush *approximately
LSN flush *approximately

Will vary depending on fuel, location...