Does anyone know what the compression should be on a stock 2000 400ex? I am looking at one to buy and would like to check the plug and compression tonight when I look at it,also is there anything in particular that I should be looking at? thanks for any info!!

 

9:3. look everywhere on it.

 

stock compresion should be right around 125 psi.

 

Thanks 351 thats what I needed, I bought two 400ex's one is a 2000 and one is a 2001 both really good condition!! and with the other 400's coming out it has droped the price on these quite a bit! thanks again