Apr 26, 2020 · Quite a while ago my interest was sparked when a bunch of mad Poms at Totally TTR's decided to build a 350 big bore kit. A genuine 350cc, with all new sand cast barrel with thick walls to prevent the oil leaks that some of the 325 Thumper racing kits (actual 315cc) succumb to.

Some of you may have realised by now, there is talk of a 350 kit becoming available. There has been some really hard work done by a fellow TTR nut, to see if it could work. Measurements have been taken, suppliers and manufactures have been …

Aug 7, 2005 · Good solid motors, easy to work on, just a bit dated by modern standards. Get fresh oil and filter in it straight away and check out the air filter too. Look for any loose spokes and possible leaks from the front fork oil seals as they can take a battering. I had an 87 XT350. It is gone now but I miss it. It was bulletproof.

Jul 17, 2022 · As well as my TTR250 big bore 350 build, I have also just completed a full resto on a 1986 TT350, powder coated frame, full engine and suspension rebuild, with a full TTR front end. The TT350 I use for Vintage Enduro pre 1988 class.

Aug 16, 2021 · The TT 350 is an absolutely inspiring motorcycle, an all-rounder with a great engine, easy handling, good spring elements, and well thought-out construction.

Sep 11, 2024 · The 350 mod is a passion job- you have to really want it to be able to justify the cost to yourself. In all honesty, a DRZ400 would have been cheaper (outright) and give more power and better suspension (I've had one) BUT it doesn't have the character of what I've built.

Yamaha TT 350 is produced in 1986-87. Engine is Four stroke, single cylinder, DOHC, 4 valve, displacement 349 , produces power 32 hp / 23.8 kW @ 7000 rpm (rear tyre 28.0 hp @ 7600 rpm ) and 3.4 kgf-m / 24.5 lb-ft @ 6000 rpm. Yamaha TT 350 top speed is 129.2 km/h.

Feb 25, 2025 · The TT 350 is an absolutely inspiring motorcycle, an all-rounder with a great engine, easy handling, good spring elements, and well thought-out construction.

Sep 23, 2018 · The 1986-’87 TT350 was powered by a 346cc air-cooled single with dual overhead cams and four valves. It was fed by a siamesed pair of Teikei Kikaki carburetors, one operated by the throttle cable, the other by vacuum. This engine wasn’t tuned to rev, but a six-speed gearbox ensured that a high-enough-for-the-dirt top speed was on tap.

Apr 26, 2020 · I'm not sure how much of this original build that you all remember, but while the bike is a 1996 model, the motor that ended up with the 350 kit, was from a low km 2005 - mainly for the kick starter and bigger clutch.