motovert24
Well-Known Member
thought i would make a thread on basic needed bike maintenance and few other things.. as i've seen alot of the same question asked by some people.
I'll start off with washing your bike.
Afew things you will need
bike wash, wd40, chain cleaner, chain wax, plastic bag (cover airfilter), exhaust plug.
a bucket, presser cleaner, sponge thingo.
Washing the bike
first cover the airfilter/carby with the plastic bag or old tube with a clamp
Then put the plug in the exhaust
Fill the bucket with water and put some of the bike wash liquid into the bucket.
Put the sponge in the bucket and soak it, Then start wiping down the bike.
Then wait 15 minutes for the bike wash to soak into the dirt and eventally it'll come off/fall off pretty easy
Now start the presser washer and wash the bike down.
once you've finished washing it on the box stand, put the bike against the wall or lie it on the box stand so you can wash underneath the bike.
now it should be nice and clean
also good to check afew parts of the bike like fork seals to see if they have oil or dirt on them.
after washing it i usually either leave it or wipe it down, then put WD40 on the plastics and then wipe it off to make the bike shiny again, also can prevent mud/dirt sticking onto the bike while riding for abit.
now get the chain wash and spray it on the chain underneath the swingarm inbetween the wheel to the frame.
Carby maintenance (kehin PWK28 Flatslide)
Cleaning out the carby after every ride is very important because washing the bike 99% chance you got water into the carby bowl somehow.
if there is dirt or water in your carby bowl then your bike will not run/bog as how it should. So you should do it every ride/race day.
first you need a flat head screw driver and a phillps head screw driver and a wrench
first undo the clamp that holds the carby onto the manifold.
There is 2 ways you can clean out your carby. the easiest and quickest way is just undoing the drain bolt and shaking it afew times full of fuel then undo it again and repeat maybe 2 or 3 times.
blow out the jets but becareful as the fuel will still be sitting in the jet and splash into your face.
now put it back together and make sure its all ok.
Valves
Valves are very important to do aswell. if you have a loose valve it'll cause abit of damage over time. sometimes can be hitting the piston and do alot of damage there and bend/snap. if that happens you have no working engine.
first you undo this magneto cover (8mm socket)
then the cam cover
then the top or bottom valve cover
Valve tools you need
.003 for inlet (top) .004 for exhaust (bottom)
if the valve is too tight the feeler gauge wont be able to fit though the valve.
if its too loose the feeler gauge will slide through easy.
You want it so you can put the feeler gauge into the valve but it doesn't go in too easy and doesn't slide out to easy. till like its sticky.
Spokes
you will need a spoke tool like this.
will tighting spokes do not over tighten them or they will snap. which is a pain in the butt. also is best to tighen every 3 spokes so the wheel doesn't untrue itself.
chain
with the chain you should have atleast 3 fingers like this.
and make sure the axel chain blocks line up with the other side or the wheel will be crooked
Engine oil
with the pitbike engines you should only use mineral based oil. if you use semi synthetic you will have some clutch issues and eventally no clutch.
i use motul 3000
dipstick for oil
unscrew the dipstick from the engine and wipe off the oil with a towel or paper towel.
There are 2 ways of checking the oil.
first one is
put the dipstick in the engine without screwing it in.
should be atleast halfway full
The 2nd way (way i always check)
is screwing the dipstick all the way in.
should cover the whole dipstick till the end bit
i think i did overfill the bike a tiny bit but shouldn't really matter, will only smoke abit if it was abit over.
Also is a good idea to carry alot of tools and spare parts aswell as oil, chain wax, spare air filters, wheels/tubes, spark plugs and everything like that to every ride. You never know if you are going to have an issue or run out of oil or fuel.
i carry afew boxes like this around full of spares
Any bog in power could mean either. too much oil or dirt on airfilter. water/dirt in carby, blocked jets, loose electrical connection. air leak. or valves not set correctly. if problems still persist check carby slide or fuel leads.
also try draining the fuel tank and see if there was dirt in it blocking that carby
also check all major bolts like handlebars, engine mount, swingarm, axels, spokes, and fork bolts.
hope this has helped afew people with there bike maintenance.
I'll start off with washing your bike.
Afew things you will need
bike wash, wd40, chain cleaner, chain wax, plastic bag (cover airfilter), exhaust plug.
a bucket, presser cleaner, sponge thingo.
Washing the bike
first cover the airfilter/carby with the plastic bag or old tube with a clamp
Then put the plug in the exhaust
Fill the bucket with water and put some of the bike wash liquid into the bucket.
Put the sponge in the bucket and soak it, Then start wiping down the bike.
Then wait 15 minutes for the bike wash to soak into the dirt and eventally it'll come off/fall off pretty easy
Now start the presser washer and wash the bike down.
once you've finished washing it on the box stand, put the bike against the wall or lie it on the box stand so you can wash underneath the bike.
now it should be nice and clean
also good to check afew parts of the bike like fork seals to see if they have oil or dirt on them.
after washing it i usually either leave it or wipe it down, then put WD40 on the plastics and then wipe it off to make the bike shiny again, also can prevent mud/dirt sticking onto the bike while riding for abit.
now get the chain wash and spray it on the chain underneath the swingarm inbetween the wheel to the frame.
Carby maintenance (kehin PWK28 Flatslide)
Cleaning out the carby after every ride is very important because washing the bike 99% chance you got water into the carby bowl somehow.
if there is dirt or water in your carby bowl then your bike will not run/bog as how it should. So you should do it every ride/race day.
first you need a flat head screw driver and a phillps head screw driver and a wrench
first undo the clamp that holds the carby onto the manifold.
There is 2 ways you can clean out your carby. the easiest and quickest way is just undoing the drain bolt and shaking it afew times full of fuel then undo it again and repeat maybe 2 or 3 times.
blow out the jets but becareful as the fuel will still be sitting in the jet and splash into your face.
now put it back together and make sure its all ok.
Valves
Valves are very important to do aswell. if you have a loose valve it'll cause abit of damage over time. sometimes can be hitting the piston and do alot of damage there and bend/snap. if that happens you have no working engine.
first you undo this magneto cover (8mm socket)
then the cam cover
then the top or bottom valve cover
Valve tools you need
.003 for inlet (top) .004 for exhaust (bottom)
if the valve is too tight the feeler gauge wont be able to fit though the valve.
if its too loose the feeler gauge will slide through easy.
You want it so you can put the feeler gauge into the valve but it doesn't go in too easy and doesn't slide out to easy. till like its sticky.
Spokes
you will need a spoke tool like this.
will tighting spokes do not over tighten them or they will snap. which is a pain in the butt. also is best to tighen every 3 spokes so the wheel doesn't untrue itself.
chain
with the chain you should have atleast 3 fingers like this.
and make sure the axel chain blocks line up with the other side or the wheel will be crooked
Engine oil
with the pitbike engines you should only use mineral based oil. if you use semi synthetic you will have some clutch issues and eventally no clutch.
i use motul 3000
dipstick for oil
unscrew the dipstick from the engine and wipe off the oil with a towel or paper towel.
There are 2 ways of checking the oil.
first one is
put the dipstick in the engine without screwing it in.
should be atleast halfway full
The 2nd way (way i always check)
is screwing the dipstick all the way in.
should cover the whole dipstick till the end bit
i think i did overfill the bike a tiny bit but shouldn't really matter, will only smoke abit if it was abit over.
Also is a good idea to carry alot of tools and spare parts aswell as oil, chain wax, spare air filters, wheels/tubes, spark plugs and everything like that to every ride. You never know if you are going to have an issue or run out of oil or fuel.
i carry afew boxes like this around full of spares
Any bog in power could mean either. too much oil or dirt on airfilter. water/dirt in carby, blocked jets, loose electrical connection. air leak. or valves not set correctly. if problems still persist check carby slide or fuel leads.
also try draining the fuel tank and see if there was dirt in it blocking that carby
also check all major bolts like handlebars, engine mount, swingarm, axels, spokes, and fork bolts.
hope this has helped afew people with there bike maintenance.
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