rossyo Posted September 19, 2004 Share Posted September 19, 2004 I have just burnt a hole in my piston my FS1e and I am thinking it is to do with me putting in unleaded fuel with fully synthetic oil at a ratio of 40:1 does anybody know what it is meant to be? Cheers, Ross. Link to comment Share on other sites More sharing options...
Guest JMW Posted September 28, 2004 Share Posted September 28, 2004 40:1 sounds ok, unleaded is ok too but my fizz used to get a bad virabtion when you revved it hard and using unleaded gas. Use a higher grade unleaded like Optimax or real 4 star gas. Enjoy ! Link to comment Share on other sites More sharing options...
contrabandit Posted August 6, 2007 Share Posted August 6, 2007 I have just burnt a hole in my piston my FS1e and I am thinking it is to do with me putting in unleaded fuel with fully synthetic oil at a ratio of 40:1 does anybody know what it is meant to be? Cheers, Ross. lead replacement additive and a mixture of 20-1 would probably solve your problems Link to comment Share on other sites More sharing options...
deenjay Posted August 7, 2007 Share Posted August 7, 2007 lead replacement additive and a mixture of 20-1 would probably solve your problems in the 70s it was 25 to 1 so your running very weak for real help with your fs1e try www.fs1e.co.uk the fs1e forum dont get put off by the weird guy on a ty as you load the front page its me at the ACE CAFE 70s day Link to comment Share on other sites More sharing options...
Recommended Posts