ET160 30 #1 Posted October 3, 2020 My B-80 seems a little thirstier than I remeber. Carb and points/plug seems to be adjusted right. Anything else I can check? Share this post Link to post Share on other sites
pfrederi 18,714 #2 Posted October 3, 2020 Leaks /seeps??? Also check your oil.... if the fuel pump is failing some of your gas is going into the crankcase....Gas with Ethanol in it has a lower BTU (energy) content. You burn more of it to do the same work. Share this post Link to post Share on other sites
ET160 30 #3 Posted October 3, 2020 I was wondering about ethanol; maybe that's it. Share this post Link to post Share on other sites
lynnmor 7,858 #4 Posted October 3, 2020 (edited) 10% ethanol should only reduce fuel consumption a few percentage points, make sure that you aren't using a higher percentage. There are several stations in my area that have the 15% ethanol scam going on and there is no engine made that should use it. Of course 0% is the best. Is the power normal? Perhaps the compression is low from worn valves or rings. If the valves are an issue you should make repairs now rather than causing more damage to the valves or valve seats. Edited October 3, 2020 by lynnmor 1 Share this post Link to post Share on other sites
ET160 30 #5 Posted October 4, 2020 Power seems fine. What should compression be? Share this post Link to post Share on other sites
lynnmor 7,858 #6 Posted October 4, 2020 16 minutes ago, ET160 said: Power seems fine. What should compression be? You may have an automatic compression release engine making a compression test more difficult. You can try spinning the engine backwards to test, increase valve clearance to where the ACR doesn't open the valve or do a leakdown test to see if there is much air leakage. Compression pressure should be in the neighborhood of 100 PSI. Share this post Link to post Share on other sites
tom2p 2,394 #7 Posted October 5, 2020 (edited) check spark plug and air filter check the tire pressure ; more psi = less rolling resistance Edited October 5, 2020 by tom2p Share this post Link to post Share on other sites
Lee1977 7,224 #8 Posted October 5, 2020 With all the rain we have had this summer the grass is taller and thicker. Might be that you are just working it harder this year. I have already burnt around 60 gallons mowing, little gardening, hauling limbs out of the yard. Share this post Link to post Share on other sites
