atVMAX99
Member
Hi all! This is my first post to the forum and I'm starting with an SOS to all Vmax carburetor experts!
Due to my stupidity I left fuel in the bike over the course of the Winter and of course it gummed up my pilots on the carbs. The bike didn't want to hold an idle unless the choke was on. I came across a cleaning procedure on Vmaxoutlaw.com on the PAJ1 and PAJ2 circuits, which I did. I followed it precisely and insured I had carb cleaner coming out of all the pilot circuit orifaces. Got everything put back together and set the pilot screws 2 1/2 turns out and fired it up. The bike was able to idle without the choke which improved my original problem however the issue now is an unsteady/surging idle. I'll skip over the fine tuning details of the pilot mixture screws and sum it up with, at 75 degrees 2 1/2 turns out seemed too rich and at 40 degrees 2 turns out seemed too lean so I settled with 2 1/4 turns out. This was seeming promising however the idle was still surging and what I mean by this is, if you "goose" the throttle the rpms are VERY lethargic in settling back to 1000rpms. Sometimes it'll hang about 3000 for a few seconds then come back to 1000. Of course taking it for a ride sucked because when you give it gas and go to shift gears, rather then the rpms dropping in between gear changes it's like I never let go of the throttle. I made sure the throttle wasn't sticking by observing the throttle movement at the carbs while I twisted and everything moved in synch no hanging up linkage and when the throttle was let go it always rested on the idle adjust screw. I really scrutinized this because the symptons are like there's slop in the linkage but there's none that I can see. After I cleaned the carbs I made sure all the clamps were tight and even re-synched the carbs, the #3 cylinder was a smidge high.
Note: the carbs were never seperated from each other or removed from the bike during cleaning.
So to the carb experts, what did I do wrong, what did I overlook, what still ails this thing?!?
Any help would be most appreciated!!!
Due to my stupidity I left fuel in the bike over the course of the Winter and of course it gummed up my pilots on the carbs. The bike didn't want to hold an idle unless the choke was on. I came across a cleaning procedure on Vmaxoutlaw.com on the PAJ1 and PAJ2 circuits, which I did. I followed it precisely and insured I had carb cleaner coming out of all the pilot circuit orifaces. Got everything put back together and set the pilot screws 2 1/2 turns out and fired it up. The bike was able to idle without the choke which improved my original problem however the issue now is an unsteady/surging idle. I'll skip over the fine tuning details of the pilot mixture screws and sum it up with, at 75 degrees 2 1/2 turns out seemed too rich and at 40 degrees 2 turns out seemed too lean so I settled with 2 1/4 turns out. This was seeming promising however the idle was still surging and what I mean by this is, if you "goose" the throttle the rpms are VERY lethargic in settling back to 1000rpms. Sometimes it'll hang about 3000 for a few seconds then come back to 1000. Of course taking it for a ride sucked because when you give it gas and go to shift gears, rather then the rpms dropping in between gear changes it's like I never let go of the throttle. I made sure the throttle wasn't sticking by observing the throttle movement at the carbs while I twisted and everything moved in synch no hanging up linkage and when the throttle was let go it always rested on the idle adjust screw. I really scrutinized this because the symptons are like there's slop in the linkage but there's none that I can see. After I cleaned the carbs I made sure all the clamps were tight and even re-synched the carbs, the #3 cylinder was a smidge high.
Note: the carbs were never seperated from each other or removed from the bike during cleaning.
So to the carb experts, what did I do wrong, what did I overlook, what still ails this thing?!?
Any help would be most appreciated!!!