Newbie: Quadrunner struggles, need help - ATV Forum - All Terrain Vehicle discussion for Honda, Yamaha and more ATVs

z28clone · 12-07-2009, 09:12 PM

I have a Quadrunner possibly 1992 model, don't know. Model says LT 4WD, and stamp on the back frame rail says: JSAAJ45A7J210215.

This thing keeps fouling plugs, is hard starting, stalls alot. I want to get a carb rebuild kit for it. With the info I provided, please provide me with basic info on the quad (Year, engine size, etc) and where I can get a rebuild kit for the carb that fits what I have. All help appreciated!!! Thanks. Nathan in Ohio.

Trikemaster · 12-09-2009, 02:14 AM

Check on the side of the cylinder for a #. The # will tell what size engine you have. If it says 280 then it is 300cc.

*1992 Suzuki LTF 250 Quad Runner(4-stroke)
http://www.shearwatermotorcycles.com...v/92ltf250.jpg

countrylivin · 12-10-2009, 11:12 AM

it sounds like a 250 to me. My buddy has one, and it was doing the same thing... this may sound stupid, but open the oil fill cap near the rear axle (it should say 10w-40 on it) check and see if there is Gas getting into the lower end. this was happening to his. not sure why It did that, but after draining and refilling it (dont forget about the oil filter) it stopped fouling plugs. Also look way up under the front left tire (while sitting on the bike left) and see if there is a hexagonal-shaped fuel pump. I think it should have one.. and it is vacuum operated. that sucker is a pain to get out without removing the front fender, but open that puppy up and clean all the varnish and gum out of it, that should make your quadrunner run like new! maybe even avoid you having to get a rebuild kit for the carb. the Mikuni carb that is in there is fairly stout, fresh gas usually lets it clean itself out fairly well..
Good luck that is a great bike you got there!

Trikemaster · 12-10-2009, 12:16 PM

Quote:

Originally Posted by z28clone

I have a Quadrunner possibly 1992 model, don't know. Model says LT 4WD, and stamp on the back frame rail says: JSAAJ45A7J210215.

Have you located the engine size?

z28clone · 12-11-2009, 03:15 PM

There is a circle plate on the cylinder head on the opposite side of the spark plug. It says "225 7.5 HS".

countrylivin · 12-11-2009, 06:14 PM

Quote:

Originally Posted by Trikemaster

Have you located the engine size?

that makes it a 250