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View Full Version : 1985 tecate 250 bigger motor?



c2a5nn1o4n
05-24-2011, 10:22 PM
Hi I have a 1985 tecate 250 roller. I want to put a bigger motor in it without welding or notching the frame. Do they make motor mount kits for this? And if so what motor should I put in it ill post pics soon. I do have a professionally done 1 foot extended swingarm but im trying to keep everything as strong as possible. Any ideas. Im open to anything.

Auto_Demon
05-24-2011, 10:25 PM
well do you want to go with the stock motor or something else like a 500, and to put a 500 in it you will have to weld some mounts

c2a5nn1o4n
05-24-2011, 10:34 PM
Yeah I want something bigger

250rmanfmf
05-24-2011, 10:53 PM
kx500 is really the only bolt in (not many mods) to make work. But Viberation I hear on those trikes are insane.

HuffieVA
05-24-2011, 10:59 PM
Are you planning on dragging it or what is your overall plan for it? Warsaw is pretty close to me, if you have any stock electronics or other parts you want to get rid of to help fund your project let me know...

c2a5nn1o4n
05-24-2011, 11:05 PM
Will all the electronics and wiring b long enough with a different motor or do I have to b different stuff and I my plan for it is jus to shut people mouths who want to talk crap about my tecate. I might drag it who knows. I live to max out everything I get my hands on so.

c2a5nn1o4n
05-24-2011, 11:09 PM
And would that b any year kx500 motor 250rman or is there a certain year that takes less nods to drop in

HuffieVA
05-24-2011, 11:14 PM
I believe you are going to want the KX500 electronics to go along with the motor, the 250 may/may not work but if it does it will likely not match the optimum power curve

c2a5nn1o4n
05-24-2011, 11:23 PM
What year should I go with the motor huffie

250rmanfmf
05-24-2011, 11:25 PM
89 and newer is what I have been told are better engines. All water-cooled years will work. Not sure on difference on motor mounts. there are many guys here who have done the swap to chim in.

c2a5nn1o4n
05-24-2011, 11:33 PM
Now I do have a bonds cbr 1000 that runs do y'all think that that's too much I don't want anything that's gonna flip as soon as I floor it

c2a5nn1o4n
05-24-2011, 11:34 PM
Sorry spell check got me I meant honda cbr 1000

HuffieVA
05-24-2011, 11:57 PM
I doubt the cbr engine would fit in the cradle without some extreme major mods, FYI a 2 stroke 250 is fully capable of turning your tailbone into a plow with a flick of the wrist, and I think you'll find as far as power to weight ratio goes a KX500 would be a much better choice. I guess the question is... are you out to have fun or file an insurance claim?

c2a5nn1o4n
05-25-2011, 12:42 AM
Lol I really want to build it up because my friend jus bought a 2008 can am 600 and im out to beat him

hang&rattle
05-25-2011, 07:06 AM
Here, this will answer your electronics questions:http://www.3wheelerworld.com/showthread.php?94809-Kxt250-Tecate-3-What-Parts-Fit-Swap-Interchange&highlight=A1%2FA2+Tecate+what+part+fit+interchange . That 250 can be built by Klemm Vintage Cycle http://www.klemmvintage.com/. If Harry Klemm builds it, it will win.

fabiodriven
05-25-2011, 08:27 AM
The 500 motor bolts into that frame with few mods. The biggest problem is modding the frame in the front where the exhaust comes out of the engine. The exhaust on the 250 motor comes out at an angle to the right side of the bike. The 500's exhaust port comes straight out the front, right where the front down tube for the frame is. The other thing that makes it tough is building a pipe for it. You can mod a KX 500 pipe, but that's not the best way to do it. You would have to get one made to really have it done right.

Or you could look into a Sprock big-bore motor if you have a couple of years to wait for it to be done.

c2a5nn1o4n
05-25-2011, 10:59 AM
All right I think imm going to go with the stock 250 the kx500 are way to expensive unless anybody close to me has 1 for around $600 . But what can I do to soup up the 250

250rmanfmf
05-25-2011, 11:50 AM
If you dont want to do the 330 big bore then you can add these and that should wake up you trike

Port & Polish Cylinder (most important part)
Shave Head (raise compression, remember higher you go higher the octane you need to run)
Good Exhaust System (I recommond Jemco, or Klemm pipes)
38-40mm Flat Slide Carb
Remove airbox and go to open intake
Either V-Force Reed cage and reeds or modified Stock reed cage for topend

That will wake your tecate up big time!!!

Tecate250
05-25-2011, 04:20 PM
Or even the 1983-4 kx 250 top end. How many ponies can you get out of a tecate without selling out the family?

scooterroo
05-25-2011, 08:17 PM
yeah go with the kx cylinder with a shaved kxt head. also you could go with the kx ignition, doesnt really increase the power, but gives you reliability and dependability over the stock setup thats prone to grenading. or go with a pvl which revs higher and faster... t3's are pretty powerful stock but with the above mentioned mods they are a beast!! and will shut pretty much anyone up.

hang&rattle
05-25-2011, 08:20 PM
Harry Klemm is doing big bore kits, so you won't have to wait a year or two. He's busy at the moment with the watercraft season, but will be caught up and ready to go in a month or two.

250rmanfmf
05-25-2011, 09:06 PM
Harry Klemm is doing big bore kits, so you won't have to wait a year or two. He's busy at the moment with the watercraft season, but will be caught up and ready to go in a month or two.

That is awesome news, is he doing both first and second Gen kits?

hang&rattle
05-25-2011, 11:30 PM
That is awesome news, is he doing both first and second Gen kits?

Yes, I belive so. I got the info on him from dcreel (my hero), and e-mailed him. Only one year of the 86' raced, where as 2 (actually 3) of the 85'-84' did, but we'd have to ask dcreel, all I actually know of is the 83' (84' with experimental 200 KDX motor), 84' and 85', both 200 and 250cc. The 200 debored was the best out of the three major manufacturers. And Jimmy White didn't switch over to the 86' right away because his 85' Kleem Research was so dominate. At any rate, this is an honor to have a big bore kit, as the 'A's don't currently have anyone who makes a bore kit for them.

dcreel
05-25-2011, 11:58 PM
I would go so far as to say that there isnt much that Harry Klemm can't do to a 2 stroke motor. He did amazing work in the 80's on 2 stroke motors. He has had 25 years to perfect what he knows. I am saving my money to get some more motor work done. Send him an e-mail and talk it over with him.