Bowser’s SPX

[burtshaver2021]

You could split the case and check out the crank, Does it leak oil from the rotary valve cavity? If it’s good might be an idea to just do a top end on it, should be able to get it done for around 500.00. I hear a lot of bad about the SBT engines on here. Is that a 717 in your SPX? I’m to lazy to look back in the thread

 

[burtshaver2021]

Check out the crank before you purchase anything, nothing to lose

 

[Bowser]

You could split the case and check out the crank, Does it leak oil from the rotary valve cavity? If it’s good might be an idea to just do a top end on it, should be able to get it done for around 500.00. I hear a lot of bad about the SBT engines on here. Is that a 717 in your SPX? I’m to lazy to look back in the thread

Right I would want to open it up- I'm just hesitant to snap bolts off.

When I bought the 'Doo it came with two extra blown motors so I tried opening up one and kept snapping the bolts off the head cover. Couldn't remove the headcover either. I am unsure if SBT would still take it as a core if the bolts are stuck and mangled up.

Ideally it would be nice to open 'er up and replace & clean whats necessary. It's a 657x Rotax in this year SPX

 

[burtshaver2021]

Right I would want to open it up- I'm just hesitant to snap bolts off.

When I bought the 'Doo it came with two extra blown motors so I tried opening up one and kept snapping the bolts off the head cover. Couldn't remove the headcover either. I am unsure if SBT would still take it as a core if the bolts are stuck and mangled up.

Ideally it would be nice to open 'er up and replace & clean whats necessary. It's a 657x Rotax in this year SPX

Oh, those 657’s are a lot of fun, move right along