kebo1930
Member
yea i got T boost i read somewhere the COP mod plays havoc with it.
Off a 2004 R1 had to switch the T-Boost lead around that where connected to the coil. The original way round it didnt work.
I started discussing this problem here:
http://www.vmaxforum.net/showthread.php?t=4518
I'm bringing it up again because I don't know that it is a carb problem.
Basically, my Max just started running like absolute crap from about 60 percent throttle to 100 percent (full) throttle. I haven't done anything except spray sea foam in the vboost manifold ports about a week or two ago. That was the day the problems began. Feels like the bike is running on 3 cylinders when you try to wind it up. There is no difference after 6500rpm.
I have tried 2 different sets of replacement plugs. Carbs have been synched multiple times. Vboost cycles on startup. Replaced fuel filter a few months ago. Also completely cleaned the carbs at that time, after which the bike ran great
I *did* discover that the electrical connector at the vboost sensor was disconnected (vibration?) so I reconnected it. I hoped that would fix the problem but it did not.
Anybody have any ideas? Anyone had this problem before? I really don't want to tear into the carbs again, especially if it is not a carb problem...
Yes please! Elaborate on your switching?
Mine's still not working, and my Tboost is connected to the negative lead of the #4 cylinder coil ('86 Max).
Enter your email address to join: