thread tap size for meteor cylinder

[chuckp]

Anyone know the thread tap size for the carburator flange on a meteor 272xp cylinder? The threads are just too tight and I'm afraid of cracking the casting.
The screws are Husky OEM 503 49 69-01.
These parts were just ordered from JL, should I send them back?

 

[jacob j.]

I think the threaded portion of the 272 intake studs is 4mm, maybe a 4mm x 0.7mm?

Edit: I might be thinking 262, so the 272 studs might be 5mm x .8mm.

 

[huskihl]

M4 x .7 I believe

I think the threaded portion of the 272 intake studs is 4mm, maybe a 4mm x 0.7mm?

Edit: I might be thinking 262, so the 272 studs might be 5mm x .8mm.

I think your first one is correct. 272 had sleeves around the bolts. M4 x .7 I believe

 

[srcarr52]

M4 x .7 I believe

I think your first one is correct. 272 had sleeves around the bolts. M4 x .7 I believe

I second this.