tuning problems...easy fix?
 

hi im having trouble tuning my jato its always moving at like 5mph and it wont stop.....i dont know if i have to richen the little screw under the highspeed needle or riching the low speed which is connected to the slide carb.
by the way its a jato 3.3
thanks, ~pete

RE: tuning problems...easy fix?
 

It could be the idle is too high...It could be clutch problems...It could be clutch bearing problems...
Need a bit better description.

RE: tuning problems...easy fix?
 

the idle does seem high and when it idles down and i punch the throttle it soundlike it is bogging out....i dont know what i could tell you about the clutch how can i tell? im pretty sure is just the carbeurator

RE: tuning problems...easy fix?
 

Well phast46 i suggest you hav a proffessional look at it and have them tune it. Like Kyle Vigeant for instance. He is the best Nitro Car tuner in the NorthEast!

RE: tuning problems...easy fix?
 

dont do that. it is not that hard to tune. avgjoe is right. the most possible thing is the idle.

RE: tuning problems...easy fix?
 

richen idle, lean low speed...not very much though...like 1/8 for both...and see what that does...

RE: tuning problems...easy fix?
 

Learning how to tune is part of the nitro experience, bringing it to a professional every time you need somebody to man the screwdriver is ludicrous.

To look at the clutch, you have to remove the clutch bell. The spring may have lost temper from heat, or simply came unhooked.

The hsn controls all the fuel in, changes in hsn have an effect on the lsn.
Changes in the lsn will have an effect on the idle.
Hsn adjustments can usually be done independently of other adjustments.
Lsn adjustments usually have to have a corresponding adjustment to correct the idle.
Make small adjustments(like 1/12 of a turn), and allow the engine to get used to the new setting.