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Post by copper99 on May 13, 2013 21:22:58 GMT 1
Chaps, my engine builder has advised I run in my newly rebuilt 350(new crank/bearings/pistons/rings etc) for 100 miles at 4,500, 100 miles at 5,500,100 miles at 6,500 etc , up to max RPM.
I never run in a 350 in back in the day, would the collective say this is the way to go?
I understand about not labouring the engine and all that means.
T.I.A
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Post by marsbar350 on May 13, 2013 21:38:10 GMT 1
sounds ok copper people do it different ways cant see much can go wrong doing as instructed  |
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Post by Deleted on May 13, 2013 22:03:32 GMT 1
Not the way I did mine
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Post by copper99 on May 13, 2013 22:28:31 GMT 1
How did you do yours Mick? Im all ears(and eyes...) |
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Post by marsbar350 on May 13, 2013 22:29:38 GMT 1
not very well copper it dont pump much power |
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Post by Deleted on May 13, 2013 22:43:08 GMT 1
Did 50 miles at no more than 5000 revs to bed rings in, next 50 at 6000 revs next 50 at 7000 then it was on a dyno no need to run the crank in. All you do is run the rings and barrels in. Don't hold the revs either keep varying engine speed. Also keep an eye on the head bolts and retorque regularly I did mine to 23 pounds when I built it, after 150 miles one was only hand tight
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Post by nikfubar on May 13, 2013 22:50:44 GMT 1
Was it rebored or just new pistons & rings. If it was just pistons & rings do a few heat cycles then 100 miles up & down the rev range below 7000 then thrash it like you stole it |
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Post by copper99 on May 14, 2013 19:31:16 GMT 1
Was it rebored or just new pistons & rings. If it was just pistons & rings do a few heat cycles then 100 miles up & down the rev range below 7000 then thrash it like you stole it Just pistons n rings mate, bores where fine..bedding the crank in was mentioned by the builder. ..and not to use fully synth oil until she was run in. What was the running procedure from Yam back in the day, anyone remember? Appreciate everyones replies. |
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Post by speedysquires on May 14, 2013 22:57:26 GMT 1
Just checked my owners manual and it states:
0 - 300 miles
Avoid operation above 6000rpm. Stop the engine and let it cool for 5 to 10 minutes after every hour of operation. Vary the speed of the motorcycle from time to time. Do not operate it at one set throttle speed.
300 - 600 miles
Avoid prolonged operation above 7000rpm. Rev the motorcycle freely through the gears, but do not use full throttle at any time.
After 600 miles
Be sure to change the transmission oil.
600 miles and beyond
Full throttle can be used
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Post by nikfubar on May 14, 2013 23:22:13 GMT 1
Just checked my owners manual and it states: 0 - 300 miles Avoid operation above 6000rpm. Stop the engine and let it cool for 5 to 10 minutes after every hour of operation. Vary the speed of the motorcycle from time to time. Do not operate it at one set throttle speed. 300 - 600 miles Avoid prolonged operation above 7000rpm. Rev the motorcycle freely through the gears, but do not use full throttle at any time. After 600 miles Be sure to change the transmission oil. 600 miles and beyond Full throttle can be used Surely that's for a new engine with fresh bores not one that's just had new pistons & rings. |
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Post by speedysquires on May 14, 2013 23:59:17 GMT 1
Just checked my owners manual and it states: 0 - 300 miles Avoid operation above 6000rpm. Stop the engine and let it cool for 5 to 10 minutes after every hour of operation. Vary the speed of the motorcycle from time to time. Do not operate it at one set throttle speed. 300 - 600 miles Avoid prolonged operation above 7000rpm. Rev the motorcycle freely through the gears, but do not use full throttle at any time. After 600 miles Be sure to change the transmission oil. 600 miles and beyond Full throttle can be used Surely that's for a new engine with fresh bores not one that's just had new pistons & rings. Yes it is, I could find nothing regarding fresh rings |
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Post by Deleted on May 15, 2013 9:09:23 GMT 1
just for new rings I would only do 50 miles of running in just to bed them in and a few heat cycles first
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