Need help on blaster not revving, 01 blaster

[Quadman1]

Ok I have a 01 blaster it used to idle and rev up but it had no top end power at all, it was slow even in 6th gear it would top out at like 20. Now it won't even revv, I removed the tors, put a new plug in, new reeds, 2 different carbs, cleaned carb, compression test came out normal, fresh gas, idk. Maybe the parking brake? I'm not sure though. Although there is a small crack in the cylinder where the muffler goes into it. I'm not sure if that's causing it. Any help would be great thanks.

 

[blasterdemon7]

How did you do the compression test and what was the reading ?

 

[Quadman1]

With a compression tester and got 120

 

[blasterdemon7]

Did you check to see if the inside of the exhaust is clear. Mice like to build nests in them.

 

[Quadman1]

No I haven't I will check, thanks

 

[Quadman1]

Exhaust is clear

 

[Blaaster]

Ok I have a 01 blaster it used to idle and rev up but it had no top end power at all, it was slow even in 6th gear it would top out at like 20. Now it won't even revv, I removed the tors, put a new plug in, new reeds, 2 different carbs, cleaned carb, compression test came out normal, fresh gas, idk. Maybe the parking brake? I'm not sure though. Although there is a small crack in the cylinder where the muffler goes into it. I'm not sure if that's causing it. Any help would be great thanks.

If the crack is causing a leak it could be causing a lean mixture because of the expelled fuel charge not returning to the cylinder!

Have you done a leak test?

 

[Quadman1]

No I don't have the tools to do a leak test. It was leaking out of there with one carb but not the other.

 

[Herpderplol]

Then that crack is your problem.

 

[Quadman1]

Figured that would be the problem, thanks to everyone