Just picked up a fairly clean 3yj the other day and had a couple of short rides, however, I've noticed what seems to be a large flat spot in the revs about 2000/3000.
Is this common or a well known issue and if so, is there a cure ??
Flat spot ?
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xtzrick
- King of Posting
- Posts: 1051
- Joined: Sun Apr 17, 2011 3:41 pm
- What Bike or Bikes Do You Own?: '97 Yamaha XTZ660 Tenere, '79 Suzuki GS750
- Previously Owned Bikes: Yamaha RS125, Suzuki GT125, Suzuki GT185, Honda CB250 G5,Kawasaki Z1000J, Kawasaki KL250, Yamaha TZR125, Yamaha XT600E
- Location: Socialist Republic of S.Yorks.
Re: Flat spot ?
I don't think they were designed to be ridden much below 3000rpm, specially in 3rd, 4th or 5th, you end up damaging the teeth on the gears 
Mine ran better with a free flow air filter, jet kit & larger pilot jet (not included in the dynojet kit) but if you look at the ignition curve in the manual it makes you think Yamaha don't want you to use lower revs.
Rick
Mine ran better with a free flow air filter, jet kit & larger pilot jet (not included in the dynojet kit) but if you look at the ignition curve in the manual it makes you think Yamaha don't want you to use lower revs.
Rick