The XS400 had a four-stroke, air-cooled, overhead-cam straight-twin engine with a 180° crank angle, which reduces linear vibration at the cost of some axial vibration. The 392 cc (23.9 cu in) engine produced 36 bhp (27 kW) @ 8100 rpm.

Oct 26, 2017 · Yamaha XS400 Years produced: 1977-1982 Power: 32-36hp @ 8,500rpm Top speed: 96mph (period test) Engine: 391cc air cooled, SOHC parallel twin Transmission: 6-speed, chain final drive Weight/ MPG: 391lb (wet)/53-58mpg Price then/now: $1,348 (1977)/$600-$2,000

Nov 16, 2010 · The XS 400 was Germany with 27 hp / 20 kW offered to new drivers license with leistungsbeschränktem to address. In other countries it was 38 hp / 28 kW offered. The reduction was mainly on the camshaft. 1978, the XS 400 at once the best-selling motorcycle in Germany.

Yamaha XS 400 is produced in 1977-78. Engine is Four stroke, 180° parallel twin, SOHC, 2 valves per cylinder, displacement 392 cc / 23.9 cu-in , produces power 36 hp / 26.8 kW @ 8100 rpm and 3.3 kgf-m / 23.8 lb-ft @ 8000 rpm. Yamaha XS 400 wet weight is 182 kg / 401 lbs. Yamaha XS 400 has 2 photos. No riders reviews.

Looking to buy a Yamaha Xs400 motorcycle? Browse our extensive inventory of new and used Yamaha Xs400 motorcycles from local Yamaha dealers and private sellers. Compare prices, models, trims, options and specifications between different Yamaha motorcycles on Cycle Trader.

Jun 23, 2022 · I had a 1978 xs 400. back in the day. points were a pain but reliable. How reliable is the ignition system on my 1981 special 2 ?? Were they still working out bugs??

Listing 1-20 Of 27. Find Used Yamaha Xs400 For Sale (with Photos). 1978 Yamaha XS400.

Apr 27, 2013 · Being that compression is about 115 lbs on the 77 it's also not worth the investment of carb and exhaust upgrades yet. Which leads me to my next question; would a simple re-jetting kit and free flow exhaust make a notable difference on a …

The Yamaha has engine specific attributes like the 392 cc or 23.9 cu that generate 36 bhp or 27 KW at the rate of 8100 rev per min. XS400 comes outfitted with six-speed transmission, is wet plated, possesses six friction diskette clutch, one chained drive, a tachometric function, with self-canceling turning signals, both electrical as well as ki...

Feb 17, 2025 · UMG Says: Gutless but simple motor combined with quick rust cycle parts. Crankshaft and gearbox problems after 30k when the head gasket often blows, motors could do 40k when they weren’t worth trying to fix.