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MuffinMan |
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MuffinMan L Plate Warrior
Joined: 15 Apr 2021 Karma :
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Posted: 21:48 - 15 Apr 2021 Post subject: FZX 750 Assistance required |
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Greetings
Brand new to the forums and registered today in order to ask for help. I hope this is the right place.
My better half owns a FZX 750 circa 2001 which has been sitting in the garage for the last five years. I understand they are temperamental beasts (This is an import from the USA).
I would like to get the bike properly serviced and safe so she can ride again as an anniversary present in about six month's time.
I understand the bike was in working order when it got stored, so assumption is nothing seriously wrong apart from neglect. (Has been kept in a garage the whole time)
I am looking for someone who may be willing/able to guide me through servicing the bike to safe running condition. Due to the sad state of affairs this would have to be over Zoom or some such and happy to do an hour here and there whenever the calendar of the expert allows.
I would like to pay fairly for the time of any such expert in whatever method is best suited. Happy to discuss.
I have NO motorbike servicing experience. I have limited car servicing experience, extensive electrical and digital experience.
I hope this is the right place to ask if not please do tell me to go away and thanks in advance |
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jaffa90 |
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jaffa90 World Chat Champion
Joined: 06 Apr 2016 Karma :
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MuffinMan |
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MuffinMan L Plate Warrior
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Nutty |
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Nutty Two Stroke Sniffer
Joined: 16 Jan 2021 Karma :
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bikenut |
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bikenut World Chat Champion
Joined: 21 Nov 2011 Karma :
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Posted: 08:27 - 16 Apr 2021 Post subject: T |
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No real experience of bike maintenance, so your honest which is a good start.
You have a good working area with good ventilation and light, an other good thing...
Get a manual and study the exploded views on CMSNL, print them off if you can...
If it was mine and just purchased for example
Knowing the bike has been in good storage for the last five years, I would start with a good dust off and let it see the light of day.
Tank, seat and battery off.
Any plastics off and out of the way.
Drain the oil and filter, remove the plugs and pour some redex down the plug holes...
The oil that drained out into a bowl would be examined for "glitter" and everything else...
Place a clean bowl and catch the redex that will eventually drain out.
Do Not attempt to turn the engine over at all at this stage, stage 1.
Stage 2. Remove necessary covers so engine can be turned over with plugs out, by HAND.
Yours has under bucket valve shims and looks like the engine can run with the cam cover off.
CHECK this is so...
Turn the engine over in the correct direction very slowly and watch the valves open and close.
5 years is plenty long enough for things to "stick" like clutches, brake pistons, engine pistons and VALVES.
Valves usually stick open, meaning they are reluctant to close, meaning a stuck open valve will tangle with a rising piston, bend, and may even break a valve guide, disaster.
You must turn engine over by hand and watch the valves, lubing as you go, watch them open and close with no hint of sticking.
The ones to watch initially will be the ones open when the engine last stopped.
Watch for increasing valve clearance between cam lobe and bucket, meaning that valve is stuck open.
If a valve is stuck open the rising piston will touch it, you will feel this...and with a bit of luck the valve will spring closed.
If the engine sticks, do not force.....investigate !
When happy valves are free, increase turning speed with a socket and rachet.
Happy ?
Stage 3
New engine oil and filter and hand crank until new oil appears at the head. No need for expensive oil at this stage, but get 2 oil filters...
Happier ?
New add battery( new one after 5 years ) and whizz engine over with plugs out and ignition killed.
Engine turns over freely and oil light goes out more or less instantaeniousely ? Yes, great.
Valve clearance check, any slack or tight ones ? No, good.
Compression check, all about 150 lbs per square inch ? Good...
Stage 4
Next is ign system check.
Be carefully as these systems do not like bad earth connections, especially HT ones.
All plugs produce a spark ? Yes, good.
Stage 5
Next is fuel.
Start at the Fuel filler cap and eventually end up at the Carbs, but first, arrive at this stage, then report back.
Time taken so far, say 5 hours over 5 days...rush the valve checking stage and potentially turn this prospect into a parts donor bike...just take your time, there is lots more to come...
ENJOY! ____________________ nuts about bikes
Last edited by bikenut on 09:02 - 16 Apr 2021; edited 1 time in total |
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A100man |
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A100man World Chat Champion
Joined: 19 Aug 2013 Karma :
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Nobby the Bastard |
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Nobby the Bastard Harley Gaydar
Joined: 16 Aug 2013 Karma :
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wr6133 |
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wr6133 World Chat Champion
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A100man |
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A100man World Chat Champion
Joined: 19 Aug 2013 Karma :
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Posted: 10:25 - 16 Apr 2021 Post subject: |
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Bike nuts advice is good, but I wouldn't be that cautious about the valve train on a motors that 'only' been standing 5 years. i don't think sticking valves are that common. Fair enough if you have time. ____________________ Now: A100, GT250A, XJ598, FZ750
Then: Fizz, RS200, KL250, XJ550, Laverda Alpina, XJ600, FZS600 |
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MuffinMan |
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MuffinMan L Plate Warrior
Joined: 15 Apr 2021 Karma :
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jeffyjeff |
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jeffyjeff World Chat Champion
Joined: 02 May 2020 Karma :
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bikenut |
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bikenut World Chat Champion
Joined: 21 Nov 2011 Karma :
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MarJay |
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MarJay But it's British!
Joined: 15 Sep 2003 Karma :
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Posted: 16:59 - 16 Apr 2021 Post subject: Re: T |
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bikenut wrote: | Valves can and do stick, open usually...
Just whack a battery on it and whizz it over, if no valves are stuck, there you go, BUT if one of the many in the engine is reluctant to close...massive damage, you just ruined a potential good bike !
Your bike, your damage, your problem.....
Slow down a bit, spend the 5 hours or so, and be sure ! |
unlikely. ____________________ British beauty: Triumph Street Triple R; Loony stroker: KR1S; Track fun: GSXR750 L1; Commuter Missile: GSX-S1000F
Remember kids, bikes aren't like lego. You can't easily take a part from one bike and then fit it to another. |
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Evil Hans |
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Evil Hans World Chat Champion
Joined: 08 Nov 2015 Karma :
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Nobby the Bastard |
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Nobby the Bastard Harley Gaydar
Joined: 16 Aug 2013 Karma :
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Posted: 18:16 - 16 Apr 2021 Post subject: Re: T |
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MarJay wrote: | bikenut wrote: | Valves can and do stick, open usually...
Just whack a battery on it and whizz it over, if no valves are stuck, there you go, BUT if one of the many in the engine is reluctant to close...massive damage, you just ruined a potential good bike !
Your bike, your damage, your problem.....
Slow down a bit, spend the 5 hours or so, and be sure ! |
unlikely. |
Very unlikely. At starter motor speed they'll just be pushed back anyway. ____________________ trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
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bikenut |
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bikenut World Chat Champion
Joined: 21 Nov 2011 Karma :
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Nobby the Bastard |
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Nobby the Bastard Harley Gaydar
Joined: 16 Aug 2013 Karma :
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Old Thread Alert!
The last post was made 3 years, 10 days ago. Instead of replying here, would creating a new thread be more useful? |
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