July 22, 20251 yr Hi guys. Got 2018 txt 250 and tried to replacing the top end but I really can’t find way to how to tighten front cylinder base nuts. Plain ring wrench doesn't fit at all neither most slim wrench(signet 30493) I got. Was tried to tighten with open end wrench but seems like nuts are gonna stripping. Any idea how to tighten these nuts with torque spec??
July 22, 20251 yr On my gasgas enduro bike I went to the shop and bought a cheap ring spanner and ground the outside down until it fit. Scientific torque spec I used was almost as tight as I could do it by hand and then give the the spanner a couple of light hits with a hammer.
July 22, 20251 yr A flare nut spanner might be the answer. It is a type of open ended spanner with a bigger purchase. An example is here: https://uk.rs-online.com/web/p/spanners/2358029?cm_mmc=UK-PLA-DS3A-_-bing-_-PLA_UK_EN_Catch+All-_-Mechanical,+Fluid+Power+%26+Tools-_-2358029&matchtype=e&pla-4574999185500285&cq_src=google_ads&cq_cmp=554644865&cq_term=&cq_plac=&cq_net=s&cq_plt=gp&msclkid=095f50e9815a1b0f8679389616c21e79&gclid=095f50e9815a1b0f8679389616c21e79&gclsrc=3p.ds&gad_source=7
July 24, 20251 yr 16 hours ago, greychapel said: 1/2 inch AF open ended will be a good tight fit on 13 mm nut? Yes! Use quality tools. Edited July 24, 20251 yr by RonH
July 25, 20251 yr If you want a good open end jaw spanner then a Stahlwille No 14 or No13 pattern combination will not spread and round the nut or you may be able to get a No21 pattern ring spanner in there. They are "simply the best" IMHO. And another thing you could do is to change the nuts from 13mm hex to the 12mm hex that are found on better quality bikes like Hondas! 😉 Edited July 25, 20251 yr by lsv addition
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