Can anyone give me a guesstimate on horse power on an 87 250R suzuki.
Thanks in advance.

 

well it depends on whats done to it...

fully stock it should be around 38-40 (honda 250r claimed 38 and the zuki was just a lil faster...)

but modded, well, eh, they can be well in excess of 55hp...

 

here is a little info.

1. Suzuki Quadzilla LT500 ------> 51srwhp / 390lbs = 0.1308 hp per pound
2. Cannondale Cannibal --------> 38srwhp / 375lbs = 0.1013 hp per pound
3. Yamaha Banshee -----------> 37srwhp / 386lbs = 0.0959 hp per pound
4. Suzuki QuadRacer 250R -----> 31srwhp / 327lbs = 0.0948 hp per pound
5. Kawasaki Tecate 4 ---------> 33srwhp / 339lbs = 0.0944 hp per pound
6. Honda 250R ----------------> 31srwhp / 329lbs = 0.0942 hp per pound
7. Yamaha Raptor 660R --------> 35srwhp / 399lbs = 0.0877 hp per pound
8. Suzuki Z400 / Kawasaki X400 -> 32srwhp / 370lbs = 0.0865 hp per pound
9. Bombardier DS650 BAJA -----> 39srwhp / 475lbs = 0.0821 hp per pound
10. Honda 400EX --------------> 29srwhp / 374lbs = 0.0775 hp per pound
11. Polaris Sport 400 ----------> 34srwhp / 481lbs = 0.0707 hp per pound
12. Polaris Scrambler 500 2WD -> 35srwhp / 523lbs = 0.0669 hp per pound
13. Yamaha Blaster ------------> 20srwhp / 320lbs = 0.0625 hp per pound
14. Yamaha Warrior ------------> 21srwhp / 397lbs = 0.0529 hp per pound
15. Honda 300EX --------------> 17srwhp / 377lbs = 0.0451 hp per pound
16. Kawasaki Mojave ----------> 17srwhp / 379lbs = 0.0449 hp per pound
17. Honda 250X ---------------> 15srwhp / 351lbs = 0.0427 hp per pound
18. Honda 250EX --------------> 13srwhp / 349lbs = 0.0372 hp per pound
19. Suzuki QuadSport 230 -----> 11srwhp / 309lbs = 0.0356 hp per pound
20. Wal-Mart PowerWheels ----> 0.5srwhp / 50lbs = 0.0100 hp per pound


and here is where I found it


Midwest Trail Riders: Horsepower???

 

your numbers are a little low.

the mojave claims to have 25hp at 8000?rpm, and the 230 has WAY more hp than a 250ex! it should be around 17 (i believe, justrandy can give better input on that one). and like stated before, the trx250r claims to have 38 hp, and the zuki has a little more than that.

and the ds number look a little high. try 34

 

thats not my info. just what I found. but I know the banshee is 37 RW hp. so I dont think the 250r is even close to that in stock form.

 

the shee # is about right. but keep in mind that the 250r motor is much more "high-strung" in stock form compared to a banshee.