02-28-2007, 05:47 PM #1
should i get my cylinders honed??
if ive got new pistons should i hone out the jugs to get a new crosscut or should they be fine.. or if i should have them honed whats a good clearence??
02-28-2007, 06:05 PM #2
Get them honed your allready in there.
Clearance will not change if done correctly
02-28-2007, 08:16 PM #3
- Join Date
- Jul 2005
- euxton nr chorley lancashire, england
02-28-2007, 08:46 PM #4
ok cool. the old ones are gettin honed..
i also got a brand new jug from yamaha. i shouldnt have to get that honed just put in the correct size piston right??
03-01-2007, 08:28 PM #5
I've replaced pistons twice and have never had to rehone the jugs.
There should be plenty of crosshatch left.
Chrome plated jugs hold up really well.
You need a special diamond cutter hone to do the job right.
I wouldn't give it to my local machine shop.
03-01-2007, 11:00 PM #6
I also would not recomend honeing the cylinders. You risk removing matterial from the walls and lowering compression. New rings use scratches to seat themselves as the move up and down during the break-in process. Unless you have scoreing or large scratches that would affect the new rings. I would not rehone. Just my oppinion. JDog
03-01-2007, 11:14 PM #7
Nikisil coatings and honing don't always go together once used. The coating can get thin toward the ports after time. If you hone them, then you run the risk of burning thru the coating, and into the aluminum. You won't even KNOW it until you run your ski, and it has some "mystery" light sezuire.
I would recommend cleaning out the cylinders with a rag and some light oil. Inspect them with a bright light with your head buried right at the hole. Look for thin spots or aluminum deposition.
Use murratic acid to clean any aluminum off the coating. DO NOT SAND aluminum off the coating or you will leave a high spot.
If you use the murratic acid and the area turns black, that means your coating is too thin, and it's time to get them coated again.
03-01-2007, 11:36 PM #8
03-02-2007, 10:08 AM #9
03-03-2007, 05:15 PM #10
ok good deal, my two old ones are clean and the crosshatch is good. and the new one is well... new.
i heard you should get them honed so theres an exact piston clearance
if i dont have to thats sweet. i can start re-assembly....
what do you guys recommend to do for first time start up....ive heard rub 2 stroke oil on the walls, and ive heard to use deisel but i dont know about that
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