Leaderboard

That looks like it might work, I was mislead by an eBay listing to believe the thread was 3/4-10--however I just measured the good filter I have--it is indeed M20 x 1.5. I corrected the dimensioned photo posted above...

BTW, i also contacted K&N filters

Ah man if they get back with you let us know! I would feel alot better with a Wix or Purolator than the mysterious unbranded China filter....

That is perplexing--Check the spark and compression. Is there a smell of gas in the cylinder? I have seen "no-start" EFI systems where the fuel just ran down the cylinder wall and into the crankcase--does the oil smell of gas?

I was incorrect, it is M20 x 1.5 see my post above...

My Chinese too worse...

i was bored and just reviewed the ad copy for the tie-down rings--who writes this stuff? Oh yeah! Iron wouldn't rust...

It is common on motorcycles and the like for the oil filter adapter to be secured with a largish central nut: It is also common for many automotive oil filters to have a projecting mounting thread incompatible with such an adapter (like this FRAM filter--where the thread "bottoms out" before the seal): . Here are the dimensions of the Hisun filter (note the "concavish", recessed below the seal, mounting thread): I got a properly fitting filter from Amazon for $10...