Mar 17, 2015, 05:44 PM
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107" Big Bore Kit and Dyno Testing by Fuel Moto
Stellar HDF Member
Joined: Jun 2007
Posts: 2,928
Likes: 117
From: Ashby, Ma
Tourer
Joined: May 2012
Posts: 255
Likes: 1
From: gilbert, az
been doing research lately and found a few issues maybe someone from fuel moto would chime in on. A local motorcycle shop that I trust claims I should stay away from this kits for 2 reasons, the cylinders being bored has potential of uncovering porosity in the factory sleeves when bored out. The other being heat, living in AZ this is always something to consider. They claim that due to the boring the cylinder walls are thinned out and will run hotter than what my current 103 dose, less material faster heat transfer.
They showed me the Revolution kit as well as the cut away I can see the difference, my question is has heat or porosity ever been an issue?
They showed me the Revolution kit as well as the cut away I can see the difference, my question is has heat or porosity ever been an issue?
Road Warrior
Joined: Aug 2006
Posts: 1,575
Likes: 7
From: Wisconsin
been doing research lately and found a few issues maybe someone from fuel moto would chime in on. A local motorcycle shop that I trust claims I should stay away from this kits for 2 reasons, the cylinders being bored has potential of uncovering porosity in the factory sleeves when bored out. The other being heat, living in AZ this is always something to consider. They claim that due to the boring the cylinder walls are thinned out and will run hotter than what my current 103 dose, less material faster heat transfer.
They showed me the Revolution kit as well as the cut away I can see the difference, my question is has heat or porosity ever been an issue?
They showed me the Revolution kit as well as the cut away I can see the difference, my question is has heat or porosity ever been an issue?
To beat the heat get a good tune and synthetic oil. My FM107 actually runs cooler than a stock 103.
Advanced
Joined: Sep 2015
Posts: 76
Likes: 3
From: McHenry
been doing research lately and found a few issues maybe someone from fuel moto would chime in on. A local motorcycle shop that I trust claims I should stay away from this kits for 2 reasons, the cylinders being bored has potential of uncovering porosity in the factory sleeves when bored out. The other being heat, living in AZ this is always something to consider. They claim that due to the boring the cylinder walls are thinned out and will run hotter than what my current 103 dose, less material faster heat transfer.
They showed me the Revolution kit as well as the cut away I can see the difference, my question is has heat or porosity ever been an issue?
They showed me the Revolution kit as well as the cut away I can see the difference, my question is has heat or porosity ever been an issue?
Road Captain
Joined: Feb 2009
Posts: 671
Likes: 5
From: D.C suburbs
Heat
I didnt notice the heat from the 107 until I got stuck in traffic. I added the parade fans, and some mods to get the oil flowing a little better. The wards fans were the ticket, my next mod was going to be a cooler but I don't think I need it
Stellar HDF Member
Joined: Mar 2010
Posts: 2,622
Likes: 129
From: Black River Falls, WI.
Of course I'll call FM Monday morning but anyone have any idea why the same adjustable pushrod loosens up. My front exhaust pushrod upper jam nut has come loose twice now on me. I followed the videos to the T and used a drop of red locktite. Both times it was at about 10 or 12 miles. So I just readjusted it again at 4 turns and 2 flats per instructions. Going to go for a ride now again and see how it goes. Any input is much appreciated. Everyone have a great weekend and ride safe.
Kris
Kris
Banned
Joined: Feb 2014
Posts: 277
Likes: 48
From: Hometown
Of course I'll call FM Monday morning but anyone have any idea why the same adjustable pushrod loosens up. My front exhaust pushrod upper jam nut has come loose twice now on me. I followed the videos to the T and used a drop of red locktite. Both times it was at about 10 or 12 miles. So I just readjusted it again at 4 turns and 2 flats per instructions. Going to go for a ride now again and see how it goes. Any input is much appreciated. Everyone have a great weekend and ride safe.
Kris
Kris
2. I think calling Fuel Moto would be the next step. But if it were me and I was determined to try one more thing, I would take the pushrod out completely. Clean up the threads of any preexisting red loctite and examine the threads. Make sure you don't have a thread missing or damaged. Also make sure you are not jamming up on the old loctite... If all is good, I would run the threaded part up into the body of the pushrod. It should all screw in smoothly. If you don't have any issues I would put it back in and start the adjustment process again. I know it's a pain to take off the bottom silver cup to get it out, but I think cleaning up the threads, and examining them can't hurt since you've been through this twice. Oh and if you are going to use red loctite again, wipe the oil off the part of the thread where your going to put the loctite so it's a clean surface.
Stellar HDF Member
Joined: Mar 2010
Posts: 2,622
Likes: 129
From: Black River Falls, WI.
1. Make sure the two wrenches you are using for tightening are not binding up on each other or on the opposing Yes sir, . You should have a 3/8 on the pushrod itself, and a 7/16 on the jam nut.
2. I think calling Fuel Moto would be the next step. But if it were me and I was determined to try one more thing, I would take the pushrod out completely. Clean up the threads of any preexisting red loctite and examine the threads. Make sure you don't have a thread missing or damaged. Also make sure you are not jamming up on the old loctite... If all is good, I would run the threaded part up into the body of the pushrod. It should all screw in smoothly. If you don't have any issues I would put it back in and start the adjustment process again. I know it's a pain to take off the bottom silver cup to get it out, but I think cleaning up the threads, and examining them can't hurt since you've been through this twice. Oh and if you are going to use red loctite again, wipe the oil off the part of the thread where your going to put the loctite so it's a clean surface.
2. I think calling Fuel Moto would be the next step. But if it were me and I was determined to try one more thing, I would take the pushrod out completely. Clean up the threads of any preexisting red loctite and examine the threads. Make sure you don't have a thread missing or damaged. Also make sure you are not jamming up on the old loctite... If all is good, I would run the threaded part up into the body of the pushrod. It should all screw in smoothly. If you don't have any issues I would put it back in and start the adjustment process again. I know it's a pain to take off the bottom silver cup to get it out, but I think cleaning up the threads, and examining them can't hurt since you've been through this twice. Oh and if you are going to use red loctite again, wipe the oil off the part of the thread where your going to put the loctite so it's a clean surface.
Kris
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