Home Improvement: 120pc Specbolt Bolt Kit for Yamaha YZ 80 85 125 250. For Maintenance Upkeep and partial Restoration. OEM Spec Fasteners YZ80 YZ85 YZ125 YZ250 - Specbolt

Single Detail Page Misc: Carburetor Fuel Filter and Free Sticker Fits Yamaha Yz80 Yz85 Yz125 Yz250 Yz465 Yz490 Yz250f Yz450 Yz400 Yz426 Wr250 Wr450 Ttr125 Ttr230 Ttr90 Ttr110 Pw80 Rt100 Rt180 1981-2014 - Visu

Automotive Parts and Accessories: Champion RN2C (818) Copper Plus Small Engine Spark Plug, Pack of 1 - Champion

Home Improvement: 250pc Specbolt Bolt Kit for Yamaha YZ 80 85 125 250. For Maintenance Upkeep and partial Restoration. OEM Spec Fasteners YZ80 YZ85 YZ125 YZ250 - Specbolt

Sports: Clymer Yamaha YZ250-80 Monoshock (1978-1990) - Clymer

Single Detail Page Misc: Radiator Cap and Keepitroostin Sticker Fits Yamaha Yz80 Yz85 Yz125 Yz250 Yz250f Yz400 Yz426 Yz450 Wr250 Wr400 Wr426 Wr450 1990-2013 - Moose

Automotive Parts and Accessories: K&S Technologies 12-0102 Yamaha YZ Style Engine Kill Switch - K&S Technologies

Automotive Parts and Accessories: Champion N2C (805) Copper Plus Small Engine Spark Plug, Pack of 1 - Champion

Single Detail Page Misc: Mishimoto Temperature Gauge Radiator Cap and Keepitroostin Sticker Fits Yamaha Yz80 Yz85 Yz125 Yz250 Yz250f Yz400 Yz426 Yz450 Wr250 Wr400 Wr426 Wr450 1990-2013 - Mishimoto

Automotive Parts and Accessories: Champion Spark Plug 805C Copper Plus SE Spark Plug - Champion Spark Plug

Single Detail Page Misc: Radiator Cap and Keepitroostin Sticker Fits Yamaha Yz80 Yz85 Yz125 Yz250 Yz250f Yz400 Yz426 Yz450 Wr250 Wr400 Wr426 Wr450 1990-2013 - Moose

Automotive Parts and Accessories: FLYWHEEL PULLER 27MM X 1.0 LH - Dennis Stubblefield

Automotive Parts and Accessories: Champion Copper Plus Small Engine Spark Plug, Stk No. 104, Plug Type No.RN4C (Pack of 1) - Champion

Automotive Parts and Accessories: Athena P400485850254 Complete Engine Gasket Kit - Athena

Single Detail Page Misc: Moose 1.6 Bar Engine Radiator Cap and Keepitroostin Sticker Fits Yamaha Yz80 Yz85 Yz125 Yz250 Yz250f Yz400 Yz426 Yz450 Wr250 Wr400 Wr426 Wr450 1990-2013 - Moose

Automotive Parts and Accessories: Champion Copper Plus Small Engine Spark Plug, Stk No. 803, Plug Type No.N4C (Pack of 1) - Champion

Automotive Parts and Accessories: Champion 801C Spark Plug, Pack of 1 - CHAMPION PARTS

Automotive Parts and Accessories: Champion N7YC (813) Copper Plus Small Engine Spark Plug, Pack of 1 - Champion

Automotive Parts and Accessories: Dennis Stubblefield Sales Flywheel Puller - 20 x 1.5 RH MP#9 - Dennis Stubblefield Sales

Automotive Parts and Accessories: Champion 801 Small Engine Plug - Champion

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1990 Yz250 Engine Popular Q&A

Q: How good is a 1990 yz 250?
A: if its in good condition and doesn't need too much work i'd say go for it. 2 strokes are easy to maintain and parts can be found just about anywhere. good luck ... Read More »

Q: What Yamaha yz250 cylinders are interchangable with a 1990?
A: 1988-1991 yz250 motors are completely interchangeable. Some parts like the cylinder head use the same casting from 1988-1996. Note: although interchangeable the... Read More »

Q: Where is the oil check on 1990 YZ250?
A: 750 ML or CC's it's the same thing. Read More »

Q: How much is a 1990 Yamaha YZ 250 worth
A: The trade-in value for a 1990 Yamaha YZ 250 in good condition is about $760. Read More »

Q: When to rebuild a a yz250f engine?
A: I would not worry about rebuilding a yz250f engine until it no longer runs, as they... Read More »