Hello, all. I'm looking into buying this bike, I went to look at it last night and I'm wondering if anyone here can help me figure out what the problem with it may be before I decide to buy it.
As stated in the ad, it is low on power below 5k, and it has a slight engine stutter at idle where it will drop maybe 2-300 rpms at random intervals, usually between 2-10 seconds. It has also been known to stall out on the current owner from time to time. The bike was serviced not too long ago, and during said service, he had the piston plunger(?) replaced, as he was told that was a likely cause. It did fix the problem for a minute, but he said after a while, it started the rough idle again.
Now, I don't know jack about bike engines, which is why I'm coming here, and I know in the world of autos, these problem can be attributed to myriad reasons. I did a quick search on this site last night and found that slip-on exhausts can cause the idle issue, so I'm just wondering about the rest at this point, and if someone can give a more definitive answer on the idle than just "exhaust systems can cause that."
Thanks in advance. I'm hoping that this will be a fairly cheap fix, because for the price, this bike seems perfect for me, as it's one of the only bikes in the price range that actually runs.