fried ring?

[Darktower]

so i guess i should have gone to premix..............engine still turns fine compression is 150 in flywheel cylindar and 30 in pto.....is this definantly a ring? whats involved in removing the piston?

[Mouthfulloflake]

so i guess i should have gone to premix..............engine still turns fine compression is 150 in flywheel cylindar and 30 in pto.....is this definantly a ring? whats involved in removing the piston?


need more and better pics, and what was the compression before you remvoed the head?

what did it do just loose power?

[Matt_E]

so i guess i should have gone to premix.

Duh...never mind. The blaster, not the SXR.
Bummer.

[Darktower]

that was the compression before i removed head.....oil line came off while (or before)my buddy was riding it and it died of course because of the overheat switch and he kept trying to start it

[Mouthfulloflake]

oh duh, too early for me.

its screwed man.

pull the cylinder, and hope for the best with the crank.

you MIGHT be able to cheap out and hone, re-ring that one 30pis cylinder, but Ill bet it is scored more than will hone out.

[Darktower]

how do i pull the cylinder do i have to split the case?

[SJBrit]

how do i pull the cylinder do i have to split the case?

No - just undo all the bolts holding the cylinder down and slide it up off the cases - the pistons will just slide through. Put some rag around the rods when you've got the cylinder lifted up a bit to stop any ring debris that might be trapped in the ring grooves from falling down into the cases.

[Matt_E]

No...pull the head, then remove the six bolts that hold the cylinder to the cases.

[Mouthfulloflake]

you dont HAVE to split the cases to pull the cylinder.


BUT, you likely will want to if there is any ring or sleeve debris unaccounted for in the engine, you dont want that crap down in there to get in a crank bearing and cost you a $400 crank ( or get punted and bust the cases)

[SUPERJET-113]

Very bad pic indeed!
Looks like that head got peppered.

[Darktower]

ok got cylinder off........piston is obviouly f'd cylinder looks scratched slightly but not but considering what piston looks like.....heres pics

[SUPERJET-113]

Ya, you had something go through your motor. You'll have to split the cases and check everything. Crank "may" be wasted too or you might get lucky.
Also you'll need to inspect the bottoms of your cases.

[Darktower]

i have to pull the flywheel then case from where im at? do i need special tool?

[Mouthfulloflake]

go ahead and remove the engine ( if you havent already)
then...

you need a "crow foot" puller, you can borrow from any little auto parts store.

[Mouthfulloflake]

it will look like this.

( this is for the flywheel)

http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=37824

[Darktower]

ok disconnected everything labeled and moved out of the way to remove engine but 4 wires from stator behind flywheelthat go to electrical box........do i have to take apart electrical box to disconnect them?

[WaveDemon]

ok disconnected everything labeled and moved out of the way to remove engine but 4 wires from stator behind flywheelthat go to electrical box........do i have to take apart electrical box to disconnect them?
just take out the electrical box too.

[SJBrit]

Looks like you got lucky with the cylinder - hope the crank works out as well for you.

[Darktower]

ok so i split the crank case and i can see the crank from oth ends..nothing visually wrong at all, should i measure warpage and what not per CD manuel also how do i clean it as there are small metal shavings from when i took head off i believe