Posted By: terzmo
fuel and new carbs - 09/13/20 11:08 AM
ok. Background experience so far...22 year old snowblower..11 year old lawnmower..I run 10% fuel/ethanol. No maintenance. Shut off blower in spring...start in fall...mower just the opposite..no issues. Run great..start great.NOW...after 8 seasons My Holly 950 just started running rich.(super rich/fouled plugs) Ran 93 octane..10% ethanol. I expected after 8 seasons something was due to go. Just borrowed a new 950 Brawler while the Holly gets rebuilt. Does anyone know/heard how the 10% ethanol affects the new carbs like this one. I have heard from motor repair people that,at least, on new mowers/blowers the 10% eats them up and 90 octane,no ethanol is the way to go. (they claimed the issue is mostly plastic construction) I understand most here are not scientists and reply from things heard but I would like a few opinions on whether to stay with 93 or go to 90 because of the newer carb. Thanks to all in advance...Thanks MOPARTS
As a side note....there is a small section of rubber hose between the fuel pump and dual feed. No issues over the years as far as deterioration. The Holly is apart and the gaskets/rubbers all seem to be in good shape for the age and wear.
As a side note....there is a small section of rubber hose between the fuel pump and dual feed. No issues over the years as far as deterioration. The Holly is apart and the gaskets/rubbers all seem to be in good shape for the age and wear.