I bought an FZ700 that sat in a storage for a year. I haven’t been able to get the engine to turn. One of the cylinders valves were open and I can see some corrosion inside the cylinder. But the other three are closed and there wasn’t a lot of water in the oil. I have some Marvel Mystery Oil sitting in the cylinders now. What else have you guys done to un-seize an engine.
I had an XJ550 motor with seized bore(s) through water ingress. You have penetrating fluid in there which is good, now you just have to try and rock the crank back an forth a little each day - by hand. Once you get more that a few mmm of movement you can try coaxing i further in the normal direction - 2 steps forward one step back kinda thing.. Good luck
Once moving you will need to strip down the top end I think. Check how much corrosion damage you have and unstick the rings if you can
vtr: Hi from cape town; new at forum's not at bike building; the insanity is contagious. Recently acquired a "1FU" FZ750 with dropped valves and decided cool to rebuild as a 911conversion sleeper, what we do to ourselves...
Oct 28, 2018 18:19:43 GMT
Bill Inger: Hi Horse, I know this is a number of years ago when you was looking at a cable conversation, did you get it sorted. and could you help me with my race bike that I uses in the superstock at the CRMC. Cheers Bill
Jan 13, 2019 9:42:57 GMT
grahamfirestorm: Hi everyone my name is graham,from wakefield w.yorks,just acquired a restored 1991 fz750.
Jun 23, 2019 19:52:52 GMT
grahamfirestorm: Can anyone tell me why my bike doesn't seem to light up after 7000rpm like all the research I did before buying it.She has the standard 4 into 1 exhaust,carbs rebuilt with new jets,seals,floats,2 new diaphragms,all valve clearances checked and adjusted?
Jun 23, 2019 20:00:50 GMT
grahamfirestorm: She revs round to 10000rpm ok,but there is no urgency with it,my 1987 Kawasaki gpx750 was a lot quicker,and that was supposed to be 10-15 bhp down,ive been told the standard silencer and air filter are to blame but I don't believe that.
Jun 23, 2019 20:10:33 GMT
grpollard: After a header pipe ring nut (for starters). After 15 plus years trying to get my fz back on the road
Oct 6, 2019 9:52:13 GMT
2manyprojects: Hi all, just aqquired 2 FZ's (only one for me, one for nephew). Have a stable full of bikes, I do have a problem, some say its madness! Am based in North Devon, yes where its always raining! Lol😂
Oct 14, 2019 17:14:31 GMT
Graham : grahamfirestorm. Do you have standard size main jets fitted to your carbs? I would be tempted to go up a size or even two to see if it helps the bike pull stronger at high revs.
Oct 15, 2019 18:57:05 GMT
hybridfreak63: Hi could anyone give me more information about fitting R1 4xv forks to my FZ ...... much appreciated
Jan 18, 2021 10:17:37 GMT