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rough running!!
Posted: Thu Oct 23, 2008 11:53 pm
by SVR6
Hi what a great fourm this is,i have just got my son a crf150r 07,the problem i have is that it wont idle,unless on choke,and when i shut off the throtle,it takes a while to go back to idle,would the valve clearance affect this,because ive all ready cleaned the carb,and all cables are free,any help on this matter would be great,thankyou for your time. JAMES
Posted: Fri Oct 24, 2008 6:24 am
by Asmith
No. Most likely a carb issue. The pilot jet is clogged...at least partially.
Remove it, clean it, run a small gauge wire through it and then reinstall.
Posted: Fri Oct 24, 2008 12:05 pm
by SVR6
Thankyou very much for your time,will try that!!
Posted: Sat Oct 25, 2008 7:45 pm
by Collin
Read every entry on the board about the 150R. There is a lot of info here about problems and how to fix them. My pilot jet was clogged when I got mine. The filter on the petcock is adequate, I don't know how the pilot jet collects so much debris. The jetting is really very easy to change. Oh and make sure to do the AP mod. Even my tech at the local dealer said they do it to most every bike that comes in for service. It is very simple after following the directions and pics here on the CRFs only message boards.
Posted: Sat Oct 25, 2008 7:47 pm
by Collin
Oh and just more helpful info, do everything ~ says! He is awesome!
Posted: Sun Oct 26, 2008 12:56 am
by SVR6
Thankyou for your help Collin !!!
Posted: Tue Oct 28, 2008 3:23 pm
by honda crf150rb
i had the same probelm with my 150r.we tried everything to fix it.but we just brought it to the dealer.the problem was thefuel scerw was not at the right setting.we thought we had adjusted the fuel screw but it was really the idle setting
the fuel screw actually fell out but the dealer fixed everything.
Posted: Tue Oct 28, 2008 3:32 pm
by Honda53
I turned my idle down a little to get rid of the hanging idle and did the o-ring mod to get rid of the bog. I have not really had anymore problems since then,but I do adjust the fuel screw and idle if there is a temperature change.
Posted: Wed Oct 29, 2008 1:00 am
by SVR6
Thankyou to everyone for there help on this matter,i cleaned the carb out again,then played with the fuel screw,and did the AP mod,totally a differant bike know,very pleased,thankyou again.
Posted: Fri Oct 31, 2008 7:12 pm
by HRC_NICK_11
I have been draining my carb after I ride and have had less starting and pilot cloging issues.
I think the gas we get now evaporates quicker because of the 10% ethanol and other additives. I think it leaves more crap behind also.
I never had problems but the last few years have been bad. Even my DRZ with a vac slide carb the needle has gotten gumed up and stuck twice this year.