Blocking Exhuast Valves

[RMKhighmark]

I have a '09 700 RMK, someone was saying you can plug the hoses on the exhaust valves to get more performance out of the machine? Is this true? And if it is, what would be the proper way of going about it? Would I have to worry about causing any other harm to my sled?

 

[MORSNO]

I think Kraven did a complete write up on this mod (should be an easy find with a search, he's reposted it many times for members). If you just want to check it out, he recommended taking a small vice grip pliers and just pinch off the hose at the T going to the solenoid. Do not unplug the solenoid, the ECU will give a fault message.

 

[Audette13]

i blocked mine of on an 09 800 like you see in pic. i never noticed any ill effects. also installed pink valve springs

 

[SU27]

engine check light?

I have 2 D8s, and blocked VES as per Kraven in "increase your IQ" thread. Both sleds on 6.5-7K RPM show engine check light. I think it is linked to VES blocking because it is only similar mod has been done for both sleds. the rest of mods are different - one has "the fix" kit, another one has fuel commander.
What you think guys? anybody experienced the same?

 

[sartysrnr]

The only way this mod will give you an engine light is if the ex valve solenoid is unplugged from the ecu,otherwise you have another problem.