Question regarding muffler/headpipe/jetting
I will, for sure. I need to rotate my attention to house and property, but next time round, I need to teach myself the next phases of regular upkeep. then will be hopefully another item (IMS tank?), check valves and an upgrade like MCM....
I have another observation/question regarding starting. My bike starts super fast and easy from cold, comes off choke in seconds, even when cold out. But when warm(the motor, not the weather, as in "warmed up"), it doesn't want to start hardly at all.....takes a LOT of time cranking over.
Now, I have been reading about drilling the starter jet, but I wasn't sure if that fix fits my needs/symptom description...
Another thought I had was perhaps the PO did the MCM but didn't disable the compassion release?
At any rate, I thought I would post up, as well as keep reading old threads. Thanks!!
ETA, I haven't yet checked my valves since buying the bike. It runs fine when warm, just is hard to start so I doubt that valves are the issue, but....
Now, I have been reading about drilling the starter jet, but I wasn't sure if that fix fits my needs/symptom description...
Another thought I had was perhaps the PO did the MCM but didn't disable the compassion release?
At any rate, I thought I would post up, as well as keep reading old threads. Thanks!!
ETA, I haven't yet checked my valves since buying the bike. It runs fine when warm, just is hard to start so I doubt that valves are the issue, but....
Last edited by xcrcarpenter; May 20, 2017 at 02:28 AM.
Yep that is not right at all.. I can't ever remember seeing that issue - except, as you know, with the MCM that lacks KACR deactivation.. You're gonna have to pull the cam cover to check it out - if the spring is still on the KACR, pull it off to see if hot starting is "fixed" - if so, then you likely have the MCM !
Last edited by Klxster; May 20, 2017 at 05:52 PM.
Yep that is not right at all.. I can't ever remember seeing that issue - except, as you know, with the MCM that lacks KACR deactivation ... Pull the cam cover and yank the spring off the KACR - hopefully your PO didn't wire it open as that could mean the wire has failed and is floating around inside your engine..
You really have a hard on about that, don't you. What in the heck makes you think a solid wire is any less durable than some flimsy spring or those mild steel rivets holding the shoes? Is it that you don't have any clue about statics and stress of materials or that it just wasn't your idea and it hurts your ego?
By the way, if you actually thought about it, which you didn't when taking the cheap shot, if the wire actually came off wouldn't the KACR act exactly the same as having the spring off? I guess not. Takes some thought process... mechanical thought process.

As I remember, Marcelino found that leaving the KACR in at stock setting did exactly what is mentioned. Start easy when cold, but extremely difficult/near impossible when hot. The reason they did the research and re-positioned the unit.
Seems everyone who has some differing knowledge or opinion is wrong if it does not fit in your world. At least I give credit to your knowledge.
Last edited by klx678; May 20, 2017 at 03:50 PM.
I have another observation/question regarding starting. My bike starts super fast and easy from cold, comes off choke in seconds, even when cold out. But when warm(the motor, not the weather, as in "warmed up"), it doesn't want to start hardly at all.....takes a LOT of time cranking over.
Now, I have been reading about drilling the starter jet, but I wasn't sure if that fix fits my needs/symptom description...
Another thought I had was perhaps the PO did the MCM but didn't disable the compassion release?
At any rate, I thought I would post up, as well as keep reading old threads. Thanks!!
ETA, I haven't yet checked my valves since buying the bike. It runs fine when warm, just is hard to start so I doubt that valves are the issue, but....
Now, I have been reading about drilling the starter jet, but I wasn't sure if that fix fits my needs/symptom description...
Another thought I had was perhaps the PO did the MCM but didn't disable the compassion release?
At any rate, I thought I would post up, as well as keep reading old threads. Thanks!!
ETA, I haven't yet checked my valves since buying the bike. It runs fine when warm, just is hard to start so I doubt that valves are the issue, but....
Now, as you all kind readers may have gathered, I have very little experience with carburetors...I will be doing research, but I immediately think of the float being stuck open, or something of the sort. I defiantly had it open a few times in that jetting session, so I could have a problem there. However, if my description sets a light off in any ones head and you have a really good idea for me, I'm all ears.
To quote subseageorge "Your thoughts as always are the most valuable asset i have regarding information on my KLX. "
Thanks in advance!
Last edited by xcrcarpenter; Jun 22, 2017 at 04:16 AM.
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