How much oil does a 1980 suzuki gn400 take - Suzuki Motorcycles

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Service Manuals

SUZUKI GS1100L 1980 SERVICE MANUAL Pdf Download

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View and Download Suzuki GS1100L 1980 service manual online. GS1100L 1980 motorcycle pdf manual download. Also for: Gs1100ex 1981, Gs1100ez 1982, ...

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  SUZUKI GS1100E OWNER'S MANUAL Pdf Download

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  View and Download Suzuki GS1100E owner's manual online. GS1100E motorcycle pdf manual download. ... Motorcycle Suzuki GS1100L 1980 Service Manual.

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The pump is mechanical and pumps to the valves and other bearings that needs it. The oil level sight glass is only for that, you won't see it surging around like a washing machine. You have probably moved a wire when installing the new lights and that is causing the oil light to come on. If they are LED replacements, they can cause a whole lot of problems due to their electronic circuitry that is in the base cap of every bulb..

https://www.google.com/search?q=1983+suzuki+gs1100+installing+LED+Lights

some bikes do breath oil into air box, what is the mileage on it, if high it cold need rings. Too much back pressre.

is the engine breather clean.??

I know it sounds silly, but have you checked your earth or ground wiring. If not earthed this type of problem can occur. Did the bike run before you replaced your coil etc? You could have a crook CDI
are you using multi meter mate for correct voltage readings?

my mechanic told me the same thing and I've been using castrol straight 30 wieght oil for years and i own a 1989 kawasaki ninja 1000.

Your valve seals are leaking.

Drain the oil and install a new oil filter. Dirty, gritty oil can make a clutch act this way. After the oil change , ride the bike for an hour or so. Now drain the oil a second time. Doing this will flush most all of the grit from the engine.

FYI > Go to this site and you can download a free PDF service manual.
www.carlsalter.com/motorcycle-manuals.asp Most all of the manuals are in English.

FYI > Go to the site below where you can see a parts diagram for your specific bike. You will select the actual brand, year, model, etc., once you go to the site. Part numbers and prices are also shown. You can order parts from this site. In the event no price is shown on a particular part, the part is not in stock. www.babbittsonline.com/pages/parts/viewbybrandand/parts.aspx

A “very helpful” rating for this answer? Thanks!

Shoot WD40 into each cylinder to get them wet.
Change gearbox oil and oil filter. Use 10w40 motor oil in the gear box. Don't use any synthetic oils, oil marked "EC", or oil with "special" additives. Stick with the major brands; Pennzoil, Quaker State, Mobil or Shell. How bad is the rust inside the gas tank? I would consider a liquid tank liner if rusted. Google “ kreem fuel tank liner “ or go to www.http://www.4secondsflat.com/Fuel_Tank_Sealer.html

• Lube chain or get a new chain (if needed)
• Lube Throttle, clutch and front brake cables
• Lube Speedometer cable
• Grease the swingarm, axle and steering stem bearings.
• Install a new battery
• Clean, and balance the carbs. This will be the problem area. They will likely be gummed up pretty good. Be sure to install an in-line fuel filter before starting the bike.

Expect to pay about $200 at a dealer for a tune up. Most of that will be labor, checking your carburetors, air filter, fuel filter, and changing the oil. Call first, some places will not even work on older bikes anymore.