Can someone tell me what the fork type is on this bike is? I have been reading that the twin chambers are harder to replace the fork seals on? Are these twin chamber the harder ones? The local Yamaha dealer wants $140.00 to replace both fork seals with all Yamaha parts. My question is are these forks hard to replace the oil in and seals? My mechanical skills are good, but I am on the fence if I should take them in or replace them myself? If I did it myself all the hardware and tools to do it is still cheaper then to take the forks in to have it completed. If I do it myself what all should I replace in the fork once appart? Just the seals or the wipers too? What oil is recommended? The bike only has about 10 hours on it and the oil has never been replaced. Thanks for the help!