looking for opinions on assembling my 103

was told by by a few people only to wipe the cylinders down with oil and not the rings when put together and as for first start up let it get up to temp and let it cool right down the start it up and play with the throttle a bit


thing is I can’t get out and ride due to snow and I have to get it to the dyno in the next couple weeks

 

Maybe this will help..
http://www.mototuneusa.com/break_in_secrets.htm

 

There is some debate on leaving rings dry and only oiling cylinders but it is a debate I don't really understand. So, you don't oil the rings? As soon an the pistons are installed in the oiled cylnders, they come in contact with oil; that is what the rings do. It doesn't make any difference; just don't use assembly lube.

A very short heat cycle, maybe two, for a minute or so jus to listen for odd noises and check for leaks is all you need before seating the rings. Talk to your dyno guy; many will seat the rings on the dyno before tuning and IMHO, the way to do if the dyno guy agrees.

 

In my opinion: For a quick startup like right after you build an engine I was told to use WD40. If you plan to start it in a week or two then use ATF to help break in.

If not planning to start it for a few weeks, than regular engine oil. As for engine break in, Dyno or Mototune method.

 

I talked to my guy today he said to oil the bottoms of the jugs and oil the skirts before I put it together and do 4 heat cycles then bring it to him to dyno

 

Actually you do oil the rings before you install them. I use Trans fluid to liberally wipe down the ring compressor to ease the installation... so yea they do get saturated.....

 

I got it all together yesterday and managed to get out for a half hour before it got to cold again.

runs good needs a good tune but I have a close map from Fuel Moto and hopefully I can get out tomorrow before the cold and snow hits us monday