LRP Z21R motor problems

[pensioner]

I have a lrp Z21R motor in my kyosho inferno75. the problem I now have is
1 I have to turn the idle screw right in and increase on the trim to get it to idle
2. I have to turn the lsn right out so that it is not too lean (book says 1.5 turns I have it at 3 turns out)
must say it goes like crazy with plenty of smoke any ideas??

 

[frickenjoey]

As long as your temps are good and your power is good then having to adjust the idle and lsn is pretty normal. I wonder if the .21 is as hot blooded as the .28s....I have two and they kick some butt for sure.

 

[Lessen]

The books aren't always as accurate on the stock settings as you would think. I broke in an RB engine this summer and couldn't get it to idle at the LSN settings the book stated. I had to make a significant adjustment to the LSN to get it to run. Bottom line, as long as she's running well all around don't worry too much about what the book says.