I replace the oil in my motor with a mixture of Duralube and sand, then duct tape the throttle open and start the bike. I go and eat lunch, it's usually ready by the time I'm done.
Same here but I add sawdust for a sealer.
I replace the oil in my motor with a mixture of Duralube and sand, then duct tape the throttle open and start the bike. I go and eat lunch, it's usually ready by the time I'm done.
I replace the oil in my motor with a mixture of Duralube and sand, then duct tape the throttle open and start the bike. I go and eat lunch, it's usually ready by the time I'm done.
Not going to really matter many manufacturers run the engines on a dyno before they go in the bike and they have been heat cycled already.
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I once did assembly in an automotive plant. Everything has to be torqued according to spec & if a bolt was over torqued it was thrown away & a new one was used. They say a bolt is cheaper than a lawsuit.I would have to agree with you. I'm sure they would need to make sure everything is within spec. Imagine if someone on the assembly line forgot to tighten something? I don't see them selling bikes with engines that may blow up within the first few hours.
I once did assembly in an automotive plant. Everything has to be torqued according to spec & if a bolt was over torqued it was thrown away & a new one was used. They say a bolt is cheaper than a lawsuit.
Once they are properly torqued, you use a marker to make a mark on it. Ever purchased a new bike/car & see all these markings on the head of bolts? It's not a kid with a crayon.
So yeah, if someone forgot to torque something on your engine, that's pure negligence
This makes the most sense to meSo I'm a machinist & here is my input. If I was to cut into a workpiece & it is a precision cut, I would never push my cutting tool at a very high feed rate. Instead, I would slowly push my cutting tool into the workpiece. Same thing as mating surfaces in an engine. If you want them to mate properly you would slowly & gradually run the surfaces over each other. Not ram them over each other. Doing so can cause chipping in the surfaces & create an improper seal
Soon enough with modern bikes you wont have a choice. For example the new BMW S1000RR comes electronically limited for break in which forces the rev limiter to 8K RPM.
This topic was discussed on here a year or two ago. I have a zx6 stock motor with over 300,000kms on it. I do not follow the owners manual for break in.
We're enthusiasts, we discuss topics than 99% of the users have no interest in.This is not unusual, but you left out the parts about what engine work you must have done.
I would guess the number of people that put >80,000km on a bike from new to be 1%, but they still argue about oil types and pay for oil analysis and seek advice on how to make an engine last a gazillion miles on the web.
All of our race engines (car) get broke in on the Dyno with warmup then:
.25 loaded pull
.50 loaded pull
.75 loaded pull
100 loaded pull
After that we change the oil and do our regular dyno tuning pulls after a full cool down. All my personal vehicles get broken in as per the owners manual. I have never seen a difference between either methods. With the race engines there is no other way to break them in since they are not street legal and that would be an expensive track day spent breaking in an engine.
You'd be surprisd at the amount of metal flake that will come out after the first 200km of riding.
Not going to really matter many manufacturers run the engines on a dyno before they go in the bike and they have been heat cycled already.
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So I'm a machinist & here is my input. If I was to cut into a workpiece & it is a precision cut, I would never push my cutting tool at a very high feed rate. Instead, I would slowly push my cutting tool into the workpiece. Same thing as mating surfaces in an engine. If you want them to mate properly you would slowly & gradually run the surfaces over each other. Not ram them over each other. Doing so can cause chipping in the surfaces & create an improper seal
the number of people that put >80,000km on a bike from new to be 1%, but they still argue about oil types and pay for oil analysis and seek advice on how to make an engine last a gazillion miles on the web.