advice / help / input needed

[enzo3856]

I have a 26cc CY in a DBXL (gas 1st gen) and it is kicking my butt right now...

took it out this last week and it was running great... and after a few tumbles it is now just idling high and if I hit the brakes it will idle down and die

the throttle difference between no input on the remote to then applying brake is so minor...
I reset my needles and as soon as I got it started it just revved up... i turned in the low speed 1/8 to 1/4 and it became better, but as soon as blip the throttle is just starts racing again.

I am guessing it could be the carb at this point....
I noticed when I apply the brakes, there is a lot of movement on the throttle shaft (lateral, like the linkage is pushing the whole thing)... this makes me feel like if i replace the carb, this issue will reappear soon....

any thoughts on this?

 

[Rep732]

The linkage needs to be adjusted with the radio on and in a relaxed state with no input or trim from the transmitter. There are collars on the throttle brake rod behind the spring, you need to lossen that collar and let the carb pull it to where idle will be.

 

[spents]

what ryan said above mate ,
somethings probably got bent or shifted in one of the tumbles, so linkage is out of adjustment now, or binding ,
reset and try again,

 

[enzo3856]

thanks for the inputs... I will try re-adjusting... if that doesn't help, will tear down carb and make sure it is all cleaned up inside

 

[Seandonato73]

It's not the carb...

 

[enzo3856]

I ended up getting some Covid right after this... missed two great weekend with awesome weather, so I have not been able to work on this... argh
Will try and work on this tomorrow and post

 

[enzo3856]

Winter is finally over
I took the carb apart and found some debris inside... cleaned it up and put it back together.

Car is running again... I had to turn out the LSN quite a bit.. I need to find the default setting somewhere again... I started with 1.5 on HSN and about 1.25 on LSN...
Easily gave it an extra .5 to .75 more before it settled down...
did some test runs on my street... Nice and smoky exhaust, no bog at all...

 

[Tassie devil]

You wear right mate 1 1/4 low 1 1/2 high thats base settings