LTZ 400 Bog at WOT

[oscarmayer]

not sure that would cause this issue as mixture only affects mid throttle. at WOT it is only the jet involved. no other settings are used as the needle is completely out of the jet center and it's all jet, that is what lead me to believe you are running rich.

[New2Tri-Z]

Update*** I have since re-jetted the bike and dropped down to 135. This allowed me to turn the screw out to 1.5 and idle and start up are great. I think they threw the 145 in to be fat/safe and had to adjust the screw to compensate (it was at 2 3/4 turns out). Unfortunately I still have the bog at high RPM.

I had previously tested the coil with my test meter on the lowest setting 2000 ohms (it read 0 ohms). The manual says reading should be between 0.1-1.0 ohms on primary side of coil. I have since picked up another tester with a smaller ohm range setting. I tested using 20 ohm max setting and it is reading 3.0-2.3 ohms. According to manual I am out of spec so it says replace the coil. This is somewhat in line with what shortline10 was telling me about the plug cap shorting out. Just want to confirm my result that I need a new coil. Thanks for any input.

[oscarmayer]

Yep. Get a new one.