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Type: Posts; User: gusmanxtr

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    xtr 250 shock absorber?

    Hey moto heads does anyone know where i can get a new shock absorber for my air cooled galaxy xtr 250 from? I don't care where it comes from. It's about 395mm from eye to eye and has the piggy back...
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    cb250 home porting job

    Hi fellow moto bandits.

    I've just finished porting a head for my cb250 (223cc but for some reason they call it a 250 wtf) with a dremel and cleaned up the dags of weld inside the exhaust pipe...
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    can anyone advize?

    My dirt bike has one of those air cooled cb250 engines in it. The inlet manifold has a capped of piece on it that looks like a tube can be connected to it. The head has a hole drilled through it into...
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    h.p. of sohc water cooled 250?

    Hi moto dudes. Does anyone know how much horsepower the sohc water cooled 250 puts out? I've seen them in puzey bikes, pitpro, atomik and other makes. Thinking of swapping my 223cc air cooled engine...
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    Cb250 compression?

    Hey dudes.

    I've played around with the head gasket thickness of my air cooled ohc 223cc (referred to as a cb250) engine. The performance has gone down. It has a 3 layer gasket so I removed 2...
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    Can I put an oil cooler on my bike?

    Hello, I've got an air cooled 250 bike and the engine oil goes a dark shitty looking colour pretty quickly after changing it. Does anyone know if an oil cooler can be fitted to any air cooled engine...
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    front rim for xtr 250?

    Hi everyone, does anyone know where I would be able to get a 1.6x21 front rim for my xtr 250? It has 32 spoke holes. Thanks for looking. Gus.:clap:
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    Re: xtr 230 front wheel/rim replacement.

    I don't mind if I have to change the whole wheel, any suggestions?
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    xtr 230 front wheel/rim replacement.

    Hello, I have a psto xtr 250(223cc) which is the same as the galaxy xtr 250 and the older air cooled pitster pro xtr 230lc with the bigger wheels. Does any one know of a japanese made front wheel...
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    172fmm hp/kw?

    Hey dudes does anyone know the horsepower/kilowatt rating of the air cooled 249cc push rod(i think) engine known as the 172fmm? If someone can tell me that would be awesome. Gus.
  11. Re: Will a crf230 11.1 piston be ok in my cb250 engine?

    Zorge, can you tell me why I should do the cylinder and not the head please? MJH, what do you mean?
  12. Re: Will a crf230 11.1 piston be ok in my cb250 engine?

    Just for anyone else out there thinking of doing the same thing as me I got some crf230 stock piston measurements from a dude off thumpertalk and the comp height is different by 1.5-2mm. The crf...
  13. Re: Will a crf230 11.1 piston be ok in my cb250 engine?

    Thanks again for more comments. Magma, I don't want a big bore kit as I would need case machining, crank shaft etc and would add up to too much money. It's either going to be a head shave or high...
  14. Re: Will a crf230 11.1 piston be ok in my cb250 engine?

    Thanks for the link MJH. Can I use this piston without a new cam? Some people say using one without a performance cam can lead to a power loss. Any thoughts?
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    pz30 carby accelerator pump?

    Stupid me lost the part off my pz30 carby that pushes on the top of the accelerator pump. You know, the plastic bit that slides onto the rod out the side. Has anyone got one of these they are not...
  16. Re: Will a crf230 11.1 piston be ok in my cb250 engine?

    Hells bells guys thanks for all the replies this is awesome! MJH you hit the nail on the head with the engines. The top half of my engine which is called a cb250 is like that of the crf230, it is not...
  17. Re: Will a crf230 11.1 piston be ok in my cb250 engine?

    The chinese cb250 engine is actually a 223cc engine, the same as the crf230 engine. The top end looks the same when comparing engine diagrams. For some crazy reason they stamp 250cc on the cylinder...
  18. Re: Will a crf230 11.1 piston be ok in my cb250 engine?

    Also, I didn't say it's a high comp piston I want to try just incase you didn't already guess.
    Gus.
  19. Re: Will a crf230 11.1 piston be ok in my cb250 engine?

    Thanks for your reply man. I have measurements from a wiseco dealer in Australia, the comp height seems to be 2mm less than my piston(that's without the built-up stuff on top of the piston). Can you...
  20. Will a crf230 11.1 piston be ok in my cb250 engine?

    Hi peeps, would anyone know if I would gain anything by putting an 11.1 piston in my currently 9.0.1 cb250 air cooled ohc engine. I hear talk of only using these when you change the cam for a...
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    crf230 stuff on cb250 engine?

    Hello, does anyone out there know if a performance cam for a crf230 will fit/work on my cb250 ohc engine. The bore and stroke are the same, thanks.
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    cb 250 head, cam and piston upgrade?

    Hi fellow moto bandits. I've heard there is a kit available for cb250 air cooled engines which gives more power (mine is very weak). This kit consists of a head with different valve springs(possibly...
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    Re: crf230 piston compression height

    Thanks for your replies. Zhu: I am interested in using a crf 230 piston in my chinese cb250 engine. They are the same bore and stroke but I think the compression height is a little less on the crf...
  24. Thread: pz30 setup?

    by gusmanxtr
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    pz30 setup?

    Does anyone out there have their jets worked out for a pz30 carby at sea level? I've mucked around a bit but it would just be easier if someone else told me their great setup and I used it instead. I...
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    crf230 piston compression height

    Hi again fellow moto dudes, does anyone out there know the compression height of a stock crf230 piston? That is, the distance from the centre of the gudgeon pin hole to the top of the piston. Please...
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