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  1. Yamaha Forum
    PE28 Kit currently on Back Order since 7/24/12.All HMF exhaust jetting has been predetermined with proper jetting specs to ensure the ultimate performance from your HMF product and should be used as a reference only. The proper jetting will ensure the full performance potential from your HMF...
  2. Yamaha Forum
    Hey all, been awhile since I have been on this forum, but been really busy. Anyway, I hav a 06' 660 with k&n filter and Pre filter, 26" ITP mudlite xtr's on 12" ITP type 7 rims. I have always rode in Maine, Where I live, ( this is sea level to about 1,000ft) however, I am being stationed at Ft...
  3. Yamaha Forum
    A friend has a 2004 Grizz 660. He runs a self modified air box with a pre filter and an HMF Utility w/out the QC. This really opened up the machine and I constantly warned him that he was probably running too lean. However, the machine ran really strong. After some time, the quad has started...
  4. Engine & Drivetrain
    I am getting ready to go riding in soon to Utah. Obviously the elevation is a little higher than 500 feet. Do I need to be concerned with re-jetting my carburetor or should I be fine?
  5. Kawasaki Forum
    ::confused::Well I don't know what to say. I have a problem with my BF 750 back firing at idle and low speed, but at higher speed or choked it does not back fire. Also when backing off the throtle it tends to back fire. Could the carbs be gummed up? Need some advice on trying to solve this problem.
  6. Consumer Product Reviews
    Dial-a-Jet Carburetor kit. For my back up quad I have a 1999 Big Bear 350. If any one out there has an older ATV you know how hard it is to get upgrade parts for a 10 year old ATV. First of all I ordered a pipe for it that didn't fit and when I called the company and told them that their pipe...
  7. Engine & Drivetrain
    Ok, the admins may want to move this, I was torn between posting here and the shop, but here goes. Is there anything to gain from rejetting a carb on a Yami 660 with stock exhaust (well, I have the ebay tip) and no airbox? What other mods are there for carbs other than jetting them? Are there...
  8. Arctic Cat Forum
    Here is the C.A.R.B. Executive Order for 950 Thundercat. 1 kilowatt = 1.34102209 HP The Thundercat produces 49.1 kW which translates to 65.84 HP. For a comparison the Outlander 800 produces 46 kW which translates to 61.69 HP. The Thundercat has 4.15 more HP than that of the Outlander 800. But...
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