Thank you for sharing your experience. I had the same problem with my new 890 even at low altitude and mild temperature. Now, with the heat shield, not an issue anymore even durng a hot day at low speed.
Good info. I installed the Powercell gas cap assembly and deleted the evap canister to address/avoid the issues you mentioned. I plan to install the heat shielding as well at some point.
if I were you, I would have applied little grease to rubber mount grip so that it will stick to the place while fitting. grease pretty much replaces glue in automotive world.
I’ve noticed a fuel gauge issue after my 790R sits for a while when the engine is hot. I arrived at a location with 3 bars on the gauge and no low fuel warning. After about 1 hour when I start the bike I get immediate low fuel warning and 1 bar, but after riding for a while and air flow cools the tank it goes back to 3 bars and no low fuel warning. This has happened twice now at elevation between 2500-4000 feet. The first time was between 2000-2500 feet with ambient air of 80-85.
Interesting.. On a side note.. when the tank gets low to a certain level and you park it on the side stand.. All the fuel runs to the other side via the crossover tube. A slow process. Restarting the bike a short while later will result in a very low fuel warning.. stand the bike up straight and ride.. a few minutes later it will show 2-3 bars again..
Did you leave the diaphragm of the fill cap? Any issues with leaving it off? I had to do the same thing with my 1290 SA after spewing gas and boiling fuel. Very scary but at least it was a steel tank. You know the 890 Plastic tank had to have enough pressure inside for it to bulge, Thanks for the info, putting the heat shielding on my 890 tank this weekend.
Thank you.. I took out the dual diaphragm, left it out. No issues..its mostly a emissions and possible spill trap. The big picture is.. do you want to be stranded.. or possibly spill 2 teaspoons of fuel once a year
I think it was a 13”x24” sheet. The video shows how much that was able to cover. I may have cover more than needed. Bottom areas of tank are much further away with good air movement.
The only test i did was before i put it on.. I have a laser thermometer and a heat gun.. Heat gun was blowing on black plastic trash barrel. I read the inside temp on the surface. then did the same with the shielding and it was considerably less. I guess hundreds of race car builders cant be wrong. Again.. this video was inspired by a scary issue i had. If i can mitigate it or help another.. Then i have done what i intended.
Great videos berry informative, but could you star them from the beginning, how you disassembled that tank, which screws, bolts or whatever did you take out first and on the way back how did you put it back all together. Please don’t assume everyone is as a good mechanic like you, the more info you give us the better of your videos.
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Thank you for sharing your experience. I had the same problem with my new 890 even at low altitude and mild temperature. Now, with the heat shield, not an issue anymore even durng a hot day at low speed.
Good info. I installed the Powercell gas cap assembly and deleted the evap canister to address/avoid the issues you mentioned. I plan to install the heat shielding as well at some point.
Where can I get more info about this? I have had the same problem on my 890 and would love to fix it. Thank you
FYI this video probably saved me from an explosion. Thank you.
Nice job. Hope that solved the issue. How is filing the tank with the Guglatech filter? Any restrictions?
if I were you, I would have applied little grease to rubber mount grip so that it will stick to the place while fitting. grease pretty much replaces glue in automotive world.
I’ve noticed a fuel gauge issue after my 790R sits for a while when the engine is hot. I arrived at a location with 3 bars on the gauge and no low fuel warning. After about 1 hour when I start the bike I get immediate low fuel warning and 1 bar, but after riding for a while and air flow cools the tank it goes back to 3 bars and no low fuel warning. This has happened twice now at elevation between 2500-4000 feet. The first time was between 2000-2500 feet with ambient air of 80-85.
Interesting..
On a side note.. when the tank gets low to a certain level and you park it on the side stand..
All the fuel runs to the other side via the crossover tube. A slow process. Restarting the bike a short while later will result in a very low fuel warning.. stand the bike up straight and ride.. a few minutes later it will show 2-3 bars again..
good advice!
Two years on...has the heat shield done the job? Have you had any more boiling fuel issues at high altitude and in hot temperatures?
Great tips, thanks for videos.
Had this stuff under my 450r dirtbike tank for 15 years now
Where did you get the heat shield? or from which vendor? Thank you
This happened to me at a little under 4000 feet 2021 890
Did you leave the diaphragm of the fill cap? Any issues with leaving it off? I had to do the same thing with my 1290 SA after spewing gas and boiling fuel. Very scary but at least it was a steel tank. You know the 890 Plastic tank had to have enough pressure inside for it to bulge, Thanks for the info, putting the heat shielding on my 890 tank this weekend.
Thank you..
I took out the dual diaphragm, left it out. No issues..its mostly a emissions and possible spill trap.
The big picture is.. do you want to be stranded.. or possibly spill 2 teaspoons of fuel once a year
@moxomcreativeadventures7722 with the diaphragm out, is the insulation still needed on the tank or that could do the trick? Thank you
Had the same issue today. Slow riding in 35C+. Gas foutain was not that high but was there anyway. How much foil did you use? Surface wise? Thanks.
I think it was a 13”x24” sheet.
The video shows how much that was able to cover.
I may have cover more than needed.
Bottom areas of tank are much further away with good air movement.
@@moxomcreativeadventures7722 thank you
It's works? Did You take temperature? Or someting lake that? Thanks in advance
The only test i did was before i put it on..
I have a laser thermometer and a heat gun..
Heat gun was blowing on black plastic trash barrel. I read the inside temp on the surface.
then did the same with the shielding and it was considerably less.
I guess hundreds of race car builders cant be wrong.
Again.. this video was inspired by a scary issue i had. If i can mitigate it or help another..
Then i have done what i intended.
Great videos berry informative, but could you star them from the beginning, how you disassembled that tank, which screws, bolts or whatever did you take out first and on the way back how did you put it back all together.
Please don’t assume everyone is as a good mechanic like you, the more info you give us the better of your videos.
Google it. Videos should be consumable not lengthy.
Where did you get the heat shield? or from which vendor? Thank you