Question for all you 700/800 owners.
Do the internal engine noise levels increase with temperature on the liberty engines? My 700 SP seems pretty quiet on cold start up but after about 15 min of riding the engine noise levels increase, especially when loading up the motor on hills and accel. Are these engines just loud in nature? I've only owned 400 2 strokes and 500 4 strokes so this motor is new to me. Only has 10 hours on it.

 

Mine doesn't seem loud to me. The 700 and 800 do have a different sound to them. I guess it might seem loud at first. I was more liking the sound than finding it loud. Mine however does not increase in volume. It sounds the same no matter what.

 

really depends on the sound your refering too.

 

I'm going to break it down a little better. On acceleration it sounds like a mix between connecting rod knock and piston slap.....almost like a rattle in the engine. The thing runs great but it just sounds unusual.

 

My 07 800 X2 has a ticking noise that I hear only at idle. Otherwise it sounds awesome. It started after about 100 miles. I really can't hear it unless I sitting still. I don't know if this is valve noise or what but my lovely sales guy says this is "normal". I personally don't like the noise at all.

 

gnadz, i havn't noted an increased volume of noise, however at certain rpm's have a rattle from the exhaust mounts, rubber washers worn off. i do have the tick that jampg describes, always been there, no problems with my 700.

 

yea mine has the ticking, most likely form the lifter/valves but no piston slap noise. is thisa under warranty if so i would take it too the dealer to have them listen and check it out. at least they would have a record of it if something goes wrong they might be able to warranty later on.

 

Thanks fellas. I'm going to give it a good days run this weekend at out first atv run of the year. Rumble on the Ridge out in Steubenville, OH. Maybe I can listen to some others.
Cee Ya!!!!

 

Everything on the right side of the engine is gear driven and I think that is where alot of the noise comes from. These twins are known for it. 5000 total miles on my two and both still run great.