91 blaster

[Tocco]

Hi' I'm looking at a 91 blaster, perfect condition fenders and seat, new bars and lights, it drives but has low compression, the guy is asking 300$, worth it or no?

 

[89blaster89]

tell him 250 and if the engine still kicks over i would def get it

 

[89blaster89]

300 is still a great deal but try to get him lower

 

[blasterdemon7]

I would say that a real good deal.

 

[warmeck]

most likely the problem is something simple like this http://www.blasterforum.com/engine-13/low-compression-17850/

 

[Tocco]

most likely the problem is something simple like this http://www.blasterforum.com/engine-13/low-compression-17850/

Well what could it be that made it have low compression?

 

[Awk08]

Well what could it be that made it have low compression?

usual cause of low compression is rings/piston/bore worn beyond spec limits.
it'll prolly need a top end rebuild for around $200

 

[dksix]

Well what could it be that made it have low compression?

In the linked thread, I read it to be faulty compression tester. Most of the time, low compression is a tired topend. A topend rebuild will be piston kit, base and head gasket and having the cylinder bored/honed. As long as the cylinder isn't maxed out, you're looking at under $200. Watch out for things like "bored 80 over" when buying. Over boring doesn't really add any power, always over bore the minimum and get all the life you can out of a cylinder. Needing a new sleeve will more than double the cost of a topend rebuild.

 

[Larry's Shee]

Look to see that there isn't a hole knocked through lower crankcase from broken piston