Retorqueing motor

[Guest]

Just rebuilt my motor and was wondering if I need to retorque my mains along with the head? Thanks, Andy

[JTGS850GL]

What bike? What year?

and yes... You need to re-torque all the engine bolts to spec.

[Nessism]

The factory manual has the maintenance schedule, including how often to retorque the head. They don't normally recommend the need to retorque the crankcase screws but it wouldn't hurt.

[helmutholderbenz]

Thanks for the advice. I think I might have a problem though. I went to retorque my head today after putting 465 miles on the motor and pulled the sparkplugs and looking at the tops of the pistons they are wet with oil, no carbon buildup. The head is fresh with new valve stem seals. Does this sound like my rings haven't sealed properly? 1983 Gs750e w wiseco 816 kit

[tkent02]

Could be. How did you run the engine to seat the rings?

[helmutholderbenz]

Could be. How did you run the engine to seat the rings?

I did like the manual said for the first 2oo miles, didn't go over 4k rpm changing it up a bunch. Then my dynojet kit came in and things kinda went out the window

[rapidray]

The tops of your pistons COULD be wet with gas if it is jetted too rich.
Ray.

[tkent02]

I did like the manual said for the first 2oo miles, didn't go over 4k rpm changing it up a bunch. Then my dynojet kit came in and things kinda went out the window

Yeah that won't work. Read this:

http://mototuneusa.com/break_in_secrets.htm

[helmutholderbenz]

Yeah that won't work. Read this:

http://mototuneusa.com/break_in_secrets.htm

That's a good article tk! Kinda on the lines of break it in on how your gonna be riding it. There are alot of varables in here though. The sleeves were honed with 400grit, my machine st said this was pretty rough for such a small piston and lent me a ball hone to smooth them out a bit. At the time it sounded like a good idea. My rings are new but not wiseco. The pistons are 1980s era xt virsions and you cant get rings for them anymore so I got some cast rings made

[helmutholderbenz]

The tops of your pistons COULD be wet with gas if it is jetted too rich.
Ray.

Ray, its not gas. By the looks of the sparkplugs the bike is running lean. I did a wot pull across a bridge and the plugs were pretty white. I called dynojet and asked about the problem and Mike told me white was common on pump gas these days. This was at 350miles. He said run it till my first valve adjust andsee how it was doing and if I wasn't happy I could go up to DJ134s

[Nessism]

Sounds a little sketchy regarding the rings and hone. 400 is too fine for most common rings. 240 is a good general purpose grit number, 320 for chrome rings. Also, it typically works best to use a good bit of throttle from the get go to seat the rings. Fingers crossed it's just jetting.

[helmutholderbenz]

Sounds a little sketchy regarding the rings and hone. 400 is too fine for most common rings. 240 is a good general purpose grit number, 320 for chrome rings. Also, it typically works best to use a good bit of throttle from the get go to seat the rings. Fingers crossed it's just jetting.

Thats my bad I ment 200grit

[helmutholderbenz]

Thanks all for the input, with all this being said, I probably missed my window for seating these rings. At just under 500miles would you think I could get away with another ball hone and a new set of rings or what should I do? Will these rings ever seat???

[60ratrod]

I would think that if you were getting oil in the chamber, you would be seeing some blue smoke and the plugs would show signs of it. Have you checked your oil level to see if you actually are using oil?

[helmutholderbenz]

Yes, there is some blue smoke and I've been having to add oil every 50 60 miles