ok quick question I wanted to ask before I started ripping my bike apart. I just bought a 1988 600FJ according to the frame. The guy I bought it off of dumped the bike (on the right side sitting on the bike) and now the 2 cylinders on the right side are dead. I have checked fuel, spark and compression with my hand over the plug holes on the valve cover and it blows my hand off. The question I have it where to look at now. I was thinking valves but wanted to ask if any one had this problem before. Thank you in advance.

 

first check that those two spark plugs are firing

 

Yep already did that...I am a mechanic on cars but bikes are just a little different. i checked spark and fuel first. so im thinking since he dumped it he may have knocked a lifter loose or something. i rode it and it wont go over 50 and real doggy. I can put my hand and hold it on the 2 pipes on the right and there cold. Thank you for helping im just looking for anything else that maybe easier to fix before i go throwing money at it.

 

i dont think a lifter came loose, if the motor isn't cracked up, i doubt anything is wrong with it. i think its something with the carbs. maybe the float is stuck or jet clogged. i would pull the carbs and clean them first.

 

Ok thanks for the input. Any place I can find a break down of the carbs and specs? I will look there first any let you know. Thanks for all the help.

 

you could buy a book for it or i know some guys on here have a link to an online one i have seen raasco post it up a few times

 

well i got the carbs apart today. there was oil in the carbs that where on the dead cylinders. i will clean them tomorrow and put back on. then it should fire right up on all four cylinders i would expect. thanks for the help will keep updated.

 

well i cleaned the carbs and replaced the plugs...the 2 dead cylinders seem to be running...but the pipes are not getting at hot as the other side. i noticed that the guy before me cut one plug wire boot short and one has a crack in the plastic covering ( on the wire itself ). so im gonna replace those any other ideas would help. thanks alot.