Engine suddenly die

[kevvek]

My engine is HPI RS4 3 type ss stock engine... I bought it few weeks before... It came w/ a good condition (used) and the seller was tuned it to excellent setting! After 1 tank of fuel.... i don't know why did my engine die when I gave it full throttle? Is it too rich? or something wrong...
Thanks for advise...

 

[jon2]

First off, Welcome to the site!

Just because the tune was perfect with the previous owner doesn't mean the engine is tuned perfect for you. I would check the temps and the smoke emission from the pipe. Sounds like you are running lean on the HSN.

 

[kevvek]

the temps and smoke emission are under good conditions... so... is it mean I should adjust the needle valve until this problem solve?

 

[jon2]

Yes you will need to retune. What engine is this?

 

[kevvek]

Yes you will need to retune. What engine is this?

HPI RS4 3 type ss stock engine... any suggestion?

 

[jon2]

So this is the 12RSS or 12RSC? First off return to factory default and then retune from there.

 

[kevvek]

i guess it's 12rss.... anyway... thanks for ur solution...i will try it some days later.....

 

[jon2]

iIf it is sputtering at full throttle than I would richen the Hish speed needle first. More than likely your temps are climbing. Let us know.