View Full Version : Four-stroke break in?
I was told (by reckless I think) to break in a 2stroke by riding it how you want it to go. Seemed to work pretty well and have had no problems with that on 2strokes. Whats the deal with 4strokes with new top ends, hows best to break them in.
barty5
21st May 2009, 16:34
I was told (by reckless I think) to break in a 2stroke by riding it how you want it to go. Seemed to work pretty well and have had no problems with that on 2strokes. Whats the deal with 4strokes with new top ends, hows best to break them in.
ride the fuckin thing
jt119
21st May 2009, 16:37
ride the fuckin thing
second that
ManDownUnder
21st May 2009, 16:48
Read the book of words. Up to so many rpm's for the first x hundred kms, then up to nnn rpms for the next so far... etc
barty5
21st May 2009, 16:52
being real for a moment mine say 1/2 to 3/4 throtle for the 1st hour but like that ever happened.
Read the book of words. Up to so many rpm's for the first x hundred kms, then up to nnn rpms for the next so far... etc
Ditto, the OEM have a vested intrest in ensuring the product has a good reputation by being as reliable as possible, they have spent many$ on research to get it right. The opinions of back yard mechanics pale by comparison.
Read the book of words. Up to so many rpm's for the first x hundred kms, then up to nnn rpms for the next so far... etc
read the first question.
I wasn't breaking 2stokes in as per book of words, and asking if I can follow suite with a 4stroke
being real for a moment mine say 1/2 to 3/4 throtle for the 1st hour but like that ever happened.
Just warm it up and ride as per usual you reckon then.
barty5
21st May 2009, 16:58
Just warm it up and ride as per usual you reckon then.
thats all ive done to mine from when it was new and with the new rings in it as well youll be sweet.
Ditto, the OEM have a vested intrest in ensuring the product has a good reputation by being as reliable as possible, they have spent many$ on research to get it right. The opinions of back yard mechanics pale by comparison.
They also tell you to change the piston every 15hrs, nobody I know does theat.
Back yard mechanics aye, you been to barty5's workshop too?? Nah mate some people on here do know a thing or two.
B0000M
21st May 2009, 17:00
on a NEW NEW bike id say go gently, beacuse you have all new gears, all new teeth, all new bearings etc
on a new top end though you dont.
id go gently for the first 10 mins, then go for gold
on a NEW NEW bike id say go gently, beacuse you have all new gears, all new teeth, all new bearings etc
on a new top end though you dont.
id go gently for the first 10 mins, then go for gold
Sounds good, cheers
barty5
21st May 2009, 17:11
They also tell you to change the piston every 15hrs, nobody I know does theat.
Back yard mechanics aye, you been to barty5's workshop too?? Nah mate some people on here do know a thing or two.
hey what you tryin to say
They also tell you to change the piston every 15hrs, nobody I know does theat.
Back yard mechanics aye, you been to barty5's workshop too?? Nah mate some people on here do know a thing or two.
Agreed, there are people who know a thing or two, and there's a lot who think they know a thing but dont....sorting them out is the problem.
B0000M
21st May 2009, 17:16
oh... i see the road bikers have gotten lost again...........
barty5
21st May 2009, 17:20
oh... i see the road bikers have gotten lost again...........
yeh hate to see how go on the road allways takin these wrong turns. lol
Ktmboy
21st May 2009, 20:35
Rupe, do a half hour heat cycle.
Ride as a Green party member:doobey: for the first run then let it cool to COLD:cold:. Next run do the same but give it a bit on the gas for a couple of mins then back to being a National party supporter.:calm:
Repeat during this cycle whilst LABOURING:buggerd: said bike like too leesies in a fish shop, You know up and down...in and out.
Another :cold: after this then give it a decent run like winston got:bye: and then do the :cold: thing again.
By this time you would probably be fairly well:drinknsin pissed.
barty5
21st May 2009, 20:44
next youll be told to :spanking::shake:while some one:2guns::moon:after:bash:and we all:scooter:and yell out:jerry:then the:Police:will show up and youll be:angry2:but we will still be:rofl:
cheese
21st May 2009, 21:32
Wow Aaron, that make your post so much easier to read. You should always use those icons!
Rupe, do a half hour heat cycle.
Ride as a Green party member:doobey: for the first run then let it cool to COLD:cold:. Next run do the same but give it a bit on the gas for a couple of mins then back to being a National party supporter.:calm:
Repeat during this cycle whilst LABOURING:buggerd: said bike like too leesies in a fish shop, You know up and down...in and out.
Another :cold: after this then give it a decent run like winston got:bye: and then do the :cold: thing again.
By this time you would probably be fairly well:drinknsin pissed.
I'm confused
Yep ride it like:shit:and :crazy::wacko: for about 20mins then change the oil! then do it again for about 1hr then change the oil. Do this for about four changes of oil and she'll be :cool:. Just do the oil changes as usual after that.
This is all I've ever done even on brand new 4 stroke road bikes. I never replaced the rings or had any problems with gearbox or any lubricated engine part. The VFR750 I had did 83000 miles (133576 km) before I sold it. Its still going in the UK (rego M634MJD). On about 90,000 miles now. I never did anything to it (other than change oil do the shims usual maintenance) I broke 2 chains on that one too.
Treat it like a 2 stroke!!!!:ar15:
Yep ride it like:shit:and :crazy::wacko: for about 20mins then change the oil! then do it again for about 1hr then change the oil. Do this for about four changes of oil and she'll be :cool:. Just do the oil changes as usual after that.
This is all I've ever done even on brand new 4 stroke road bikes. I never replaced the rings or had any problems with gearbox or any lubricated engine part. The VFR750 I had did 83000 miles (133576 km) before I sold it. Its still going in the UK (rego M634MJD). On about 90,000 miles now. I never did anything to it (other than change oil do the shims usual maintenance) I broke 2 chains on that one too.
Treat it like a 2 stroke!!!!:ar15:
Haven't seen you about for a while, hows it going?
Still going did the maize paddock race the other day. Toss up between that the jolly rooster but unfortunately I don't own the big trailer. Been to the snadpit a few times in the last month though.
Looking to do something this weekend though what you up to sunday?
Still going did the maize paddock race the other day. Toss up between that the jolly rooster but unfortunately I don't own the big trailer. Been to the snadpit a few times in the last month though.
Looking to do something this weekend though what you up to sunday?
Can't make this weekend mate, another new baby
4stroke
22nd May 2009, 12:12
get on it warm the fuker up and ride it how youd normally ride, never had a prob with my crfs doing it like that and they did 100 hrs on a piston lol:chase:
Reckless
22nd May 2009, 13:18
Posted this http://www.mototuneusa.com/break_in_secrets.htm on the last "break in thread" here it as again. Have a look at the piston museum it works! been doing it for years over many racing kart engines firstly due to impatience then deliberately. Can't be bothered re-typing any more info its all in the thread Rupe referred to, I think??
Print the mototune article, read it, Ride the fucker, change the oil, and ride it again. First 20 mins are the most important, Accelerate and decelerate no constant revs!
Good luck! and why I'm helping to make your bike faster for me to try and keep up, I don't know! LOL!!!
EDIT: Just had a thought reading the bit about heat cycling and it not being necessary.
Just bear in mind the four stroke MX bikes natural tendency to overheat specially in sand. So if your running in at the sandpit stick to the blue forest tracks the first loop and not grinding away in the deep sand. I'd possibly run it in at Thunder where you can open her up, or at the Sandpit do a blue track forest loop straight to the road sections out the back for a few of accelerate and decelerate runs so she revs out fully (but not caining the crap outa it), then another few quick blue forest loops, giving it the squirt between corners. Rest it, then have a go at the MX track once you've checked she sounds all ok and the water and oil levels are good etc. Ride an hour or two, take it home, change the oil (and filter on a four stroke) then its done!!!
Thats how I'd do it??
PS don't leave it idling in the garage after the recon, start it once to make sure it goes then shut it down (you need higher compression to get decent first up ring seal).
Atomic
22nd May 2009, 15:51
I know a guy who builds race car motors as a profession (his own race car included), he runs his fresh engines in by racing them on the race track at full tit. This is how I ran my brand new RMZ250 in, its done a good 70hrs on the original engine, valve clearances are still sweet too. I like to rev the shit out of my bike too, im not easy on her.
jt119
22nd May 2009, 16:28
ran mine in at thunder did an hour then changed oil and filter
IIIRII
22nd May 2009, 20:08
There always been two schools of thought / This is four stroke cars
So the first question is longevity or power
It was pretty much considered that for longevity , you break them in like,
up to 4000 rpm for the first 100k
up to 5000 rpm for the next hundred
etc:
Up to Drive it like you stole it after 500kms
For power, warm it up , drive it like you stole it straight away.
Ive seen plenty of engines run in on the dyno and the rolling road in the vehicle.
Same principle.
I run most of mine in as above , for power.
Dont thrash them from cold, this applies to all engines whether run in or not.
Dont load it up.
Dont overheat it.
Slowly work it harder and harder over maybe half an hour then thrash the nuts off it.
Change the oil
Done .
That mototune thing has been around for years, and is pretty much cock on.
jt119
22nd May 2009, 20:11
There always been two schools of thought / This is four stroke cars
So the first question is longevity or power
It was pretty much considered that for longevity , you break them in like,
up to 4000 rpm for the first 100k
up to 5000 rpm for the next hundred
etc:
Up to Drive it like you stole it after 500kms
For power, warm it up , drive it like you stole it straight away.
Ive seen plenty of engines run in on the dyno and the rolling road in the vehicle.
Same principle.
I run most of mine in as above , for power.
Dont thrash them from cold, this applies to all engines whether run in or not.
Dont load it up.
Dont overheat it.
Slowly work it harder and harder over maybe half an hour then thrash the nuts off it.
Change the oil
Done .
That mototune thing has been around for years, and is pretty much cock on.you lot going riding this weekend
noobi
22nd May 2009, 20:20
you lot going riding this weekend
sandpit on sunday me thinks, i wanna try the trail of doom
you still gonna do thunda tomorrow?
barty5
22nd May 2009, 20:23
sandpit on sunday me thinks, i wanna try the trail of doom
you still gonna do thunda tomorrow?
nah fuck that sandpit in the morning and dome vallery in the after noon yehaaaaaaaaaaaaaaaaaa
noobi
22nd May 2009, 20:25
nah fuck that sandpit in the morning and dome vallery in the after noon yehaaaaaaaaaaaaaaaaaa
what day are you talking about?
jt119
22nd May 2009, 20:27
sandpit on sunday me thinks, i wanna try the trail of doom
you still gonna do thunda tomorrow?trail of doom is that the one out bombay on sunday .ya ill go to thunda in the morning
noobi
22nd May 2009, 20:30
trail of doom is that the one out bombay on sunday .ya ill go to thunda in the morning
lol, na, trail of dooms a real long really hard red track at the sandpit, same area as that yellow that should have been a blue or a red down the bottom of the park
you are brave mate
barty5
22nd May 2009, 20:32
what day are you talking about?
saturday earlyb as fiddle sticks sam says i cant say fuck
flyingcr250
22nd May 2009, 20:34
you lot going riding this weekend
VROOM VROOOOOM:baby::crybaby::weep:
noobi
22nd May 2009, 20:35
saturday earlyb as fiddle sticks sam says i cant say fuck
yea you must have a record for the most number of fucks in the least possible amount of time by now, so another drink to celebrate?
jt119
22nd May 2009, 20:38
lol, na, trail of dooms a real long really hard red track at the sandpit, same area as that yellow that should have been a blue or a red down the bottom of the park
you are brave mate
ya be keen going with to others up ther sunday if twat hadnt sold his bike we could of just cent him first
noobi
22nd May 2009, 20:40
ya be keen going with to others up ther sunday if twat hadnt sold his bike we could of just cent him first
cool
yea steve, just send you in one end, we take the green then wait at the end if you dont come out, then we move onto the next track?
flyingcr250
22nd May 2009, 20:41
ya be keen going with to others up ther sunday if twat hadnt sold his bike we could of just cent him first
VROOM VROOM GINEAPIG:spanking:
jt119
22nd May 2009, 20:44
VROOM VROOM GINEAPIG:spanking:lol hows that space in the sheed were ya bike used to be looking
flyingcr250
22nd May 2009, 20:49
lol hows that space in the sheed were ya bike used to be looking
theres just a single lit candle, in the middle of an oil stain. aaaaaaa the memories. fuck im gettin the itch after only 1 week ha ha ha ah
jt119
22nd May 2009, 20:53
theres just a single lit candle, in the middle of an oil stain. aaaaaaa the memories. fuck im gettin the itch after only 1 week ha ha ha ahyour last ride http://www.youtube.com/watch?v=snB9th-W3vw
barty5
22nd May 2009, 20:55
yea you must have a record for the most number of fucks in the least possible amount of time by now, so another drink to celebrate?
fuck fuck fuck fuck fuck fuck sand fuck
flyingcr250
22nd May 2009, 21:02
yea you must have a record for the most number of fucks in the least possible amount of time by now, so another drink to celebrate?
i had a mate with that record, she was a bit of a slut lol:jerry:
noobi
22nd May 2009, 21:06
fuck fuck fuck fuck fuck fuck sand fuck
fuck sand im on a bike motherfucker
barty5
22nd May 2009, 22:13
well madeit home ridin at 9ish at the sand pit see you there if your there and dome valley at 2 ish if your there as well
IIIRII
23rd May 2009, 11:53
fuck fuck fuck fuck fuck fuck sand fuck
That is very bad england
The correct speak is
fuck sand, fuck fuck fuck fuck
clmintie
23rd May 2009, 12:20
Oh my God (pick one only ....) Barty, have you gone and bought a road bike?...... :laugh::chase:
barty5
23rd May 2009, 19:24
Oh my God (pick one only ....) Barty, have you gone and bought a road bike?...... :laugh::chase:
hell no still eatin dirt
barty5
28th May 2009, 19:23
Well got the PW80 running today so thought id run it in hahahahaha
heres a link.
http://www.youtube.com/watch?v=hdXnuPCWMIo
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