have been searching up and down the TT
forumon how to fix this jetting problem and have yet to find the right answer. I have contacted XR's only and they just say the same thing over and over (NO HELP from them).
Just some background info on the problem.i recently purchased a 99 california xr400. The bike had the top end rebuilt with the 430 kit from xr's only along with a mikuni pumper carb. After cleaning the carb and reinstalling it, the bike runs like crap. It pops and coughs and at night you can see the pipes glow at an idle. The carb originally has a 130 main and 15 pilot which i cleaned and reinstalled. XR's only states that this is the only jetting they recommend. I finally got a hold of a 20 pilot and after installing that it still runs like shit at idle. Also i have been trying to do some research about the 430 kits installed by xr's only and would like to know if there is any special service schedules that are required for them because the bike has almost no hours on the new top end and there is a definite tick in the engine, not loud but noticeable, I have readjusted the valves and everything is in spec. My only concern is that after the previous owner rebuilt the top end the bike sat for about 2 years, if that makes any difference.
My questions are:
what pilot is
safeto put on 17.5 20, 25 etc? (i have downloaded the manual for tuning the mikuni carb)
Where should the needle sit and how to find out what position it is in? Do i need a new needle?
what is up with this ticking noise? or do the 430 kits just have a subtle tick to them.
I live in ontario california elevation 0-1000 ft and will be using the bike as a pure dual sport, street and dirt/fire roads.
I have performed all the gordon's mods (Snorkle taken off, header welds grounded, crankshaft exhaust etc)
The bike also came with a super trap ids2 race series exhuast
If there is anyway anyone can help or point me in the right direction it will be greatly appreciated.