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Topics - Mower Militia

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Tecumseh Engines / tvt691 1/4" performance valves
« on: October 10, 2017, 10:08:37 pm »
Does anyone know where to find 1/4" valves for the tvt691? EC doesn't have them anymore. Would rather not get custom cut but find some ready to drop in.

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Tecumseh Engines / twin build help
« on: September 05, 2016, 08:10:39 pm »
I have a tvt691 with arc rods and flywheel, isky cam, ported heads 5/16 valves ecdual springs and retainers. 17.5 hp carbs with blue tubes and brown jets. .026 lowsde. Now it cuts out opening to wide open throttle without the breather. When I put the breather on it won't open at all just stutters. I opened the small side of the brown jets to .039. Timing is set at 34*. Cam is 270* .400 lift. Heads or cam maybe too big? Keeps fouling plugs maybe high side too big. Help please it's kicking my :censored:

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Tecumseh Engines / oversized pistons for tvt691
« on: July 24, 2016, 03:52:57 pm »
Ok got the little twin tore apart to do some mods and bore is in bad shape. Won't clean up with .010 over. Can't find anything bigger than that. 030 would be ideal. Any ideas?

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Tecumseh Engines / tvt691 won't rev
« on: May 13, 2016, 11:57:44 pm »
I've got a stock tvt691. Put arc flywheel and Briggs coils on it. Bought ohv 170 carburetors and put blue emulsion tubes and brown main jets. Now the problem is when I start it full choke and wot it revs great as long as it doesn't go back to idle. It idles great as well but as soon as I give it throttle it pops and tries to die. It just won't rev up. I've sync the carbs the best I can. Checked for vacuum leaks with carb cleaner nothing. Am I missing something here?  Low side jets maybe?  Or transfer port?

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