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bigpaul

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About bigpaul

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  1. bigpaul

    1988 CR250 replacement carburetor

    Final follow up. Ordered a 38 mm Keihen PWK carb from JD with their jetting kit. Followed the instructions for displacement and elevation in regards to jetting. Installed carb, kicked over, bike started, warmed up. Did a plug check after warm up and high speed throttle chop. Jetting appears to be spot on based off today's plug color and ambient temperature. I can HIGHLY recommend the Keihen PWK and JD jet kit. Worth every dime. Biggest problem I ran into was getting the screwdriver onto the idle screw before the bike would die!! Thank you all for your advice. Much appreciated.
  2. My 1988 CR250 carburetor is worn out. Does anybody have a suggestion as to a replacement carb and jetting specs. I don't want to buy a used carb off eBay, too many problems in the past with buying used carbs.
  3. bigpaul

    Worlds most abused dirt bike?

    You buy a bike like that because you enjoy restoring beat up old motorcycles NOT because it will be "cheap to get this bike running again". There will be tons of missing, stripped, rusted, destroyed, worn out old parts than you will ever consider. Every seal will be dried or worn out, brakes worn out, spokes rusted, tries shot/dried out. Who knows what the clutch and transmission will look like. I know, I have rebuilt bikes like that one. What is the bike worth? In reality, nothing. To get it running and back to a safe riding condition will be about $1,500 US. To really get it restored back to showroom condition will be double that.
  4. bigpaul

    I need help . 89'cr500

    Here is a link to show you how: http://www.thumpertalk.com/topic/347305-is-your-two-stroke-running-rich-read-here/
  5. bigpaul

    Ethanol is killing my Honda 2007 450 crf-x

    Get your carb properly rebuilt. I would not be taking the bike to Ridenow, find a private bike mechanic. Go to Pima Motorsports Park and ask around some of the riders who they use for rebuilding their engines. Rebuilding the carb is not tough, you an do it. Second, don't run ethanol fuel. Ethanol is AWFUL for dirt bikes that sit, it destroys carburetors. I don't find that Stabil or other fuel stabilizers to be of much help. I run ETHANOL FREE race fuel, not for the octane but because it is ethanol free. google "race fuel tucson" plenty of place sell ethanol free fuel. I use Torco unleaded 100 octane race fuel. It works in everything from weed whackers to my dirt bikes.
  6. bigpaul

    I need help . 89'cr500

    Sounds like you have a stuck float in the carburetor which is flooding the engine. Check your carb float and make sure it is not stuck and is adjusted properly.
  7. bigpaul

    Older bike problems...

    Go to ebay, plenty there. That pat number shows that it is from a 1993 and 1994 Cr125 and 250. Search ebay for either year. Other year CR chain sliders are available from www.hotfootmoto.net
  8. bigpaul

    Spooge

    Where can you find out the flashpont of various 2 stroke oils?
  9. bigpaul

    86 case rot

    to bump this heavily read thread a new development has occurred: I recently purchased from Russell Brown a reproduction water pump cover for my 1983 Honda CR250. It fits like a glove and it solved my former problem of using a 1981 CR 250 water pump cover for replacement. I have no connection to Russell Brown other than being a buyer. He is located in Australia, I used paypal, it was shipped and I received the new cover with 2 weeks. The cost at the time I bought mine was $470 Australian, postpaid. This is his email: russellbrown13@bigpond.com His web site: http://www.crclutchcovers.com Have a 1984 CR250 with a corroded clutch cover? Russell makes one. Have a CR125 with an impossible to get water pump cover? Russell makes those. NICE JOB RUSSELL!!!! So if you have one of those 1980's CR250/125 and the water pump cover is corroded, Russell is THE MAN!!!
  10. I recently purchased from Russell Brown a reproduction water pump cover for my 1983 Honda CR250. It fits like a glove and it solved my former problem of using a 1981 CR 250 water pump cover for replacement. I have no connection to Russell Brown other than being a buyer. He is located in Australia, I used paypal, it was shipped and I received the new cover with 2 weeks. The cost at the time I bought mine was $470 Australian, postpaid. This is his email: russellbrown13@bigpond.com His web site: http://www.crclutchcovers.com Have a 1984 CR250 with a corroded clutch cover? Russell makes one. Have a CR125 with an impossible to get water pump cover? Russell makes those. NICE JOB RUSSELL!!!! So if you have one of those 1980's CR250/125 and the water pump cover is corroded, Russell is THE MAN!!!
  11. bigpaul

    Spooge

    Your jetting appears to be right on. I would bet on the right side crack seal. As an aside, I have found Klotz Techniplate to be a very dirty oil to use. I use to use it all the time, not any more. Now my favorite oil to use is Motul 800. Burns very clean. Other thing to consider is if the silencer material is packed with oil from the bike being previously being jetted fat you can get that kind of sponge.
  12. bigpaul

    race fuel

    110 octane is WAY overkill unless you are running much higher compression. What octane refers to is how much pressure you can place the fuel under before it begins to combust. Higher the number, the higher the pressure it can be put under. Higher octane does not make any more horsepower than lower octane. I run race fuel in my 2 and 4 stroke bikes because it has no ethanol and my carburetors have much less tendency to get corroded. In regards to the premix? I run a quality synthetic 2 stroke oil such as Power Plus and mix it at 50 to 1 ratio. I experience no wear issues but I also maintain my bikes and keep the air filters clean and properly jet for the riding conditions.
  13. bigpaul

    Project restore 1988 250r

    all I can say is this:
  14. bigpaul

    Might be buying a 83 cr250

    Better check the water pump cover, it is made of magnesium and unless you buy one of the purported repo water pump covers from Australia (I have not seen one for sale yet, only heard they are for sale), no replacement covers are for sale. Honda no longer makes them. A 1981 CR250 water pump cover made of magnesium will work but even used they are not cheap. 1983 CR's if I recall correctly were known to break 3rd gear. Most of your parts are going to need to come from ebay or other used sources. That being said, I won a 1983 CR250 and find it an amazing bike. For a non power valve 2 stroke motor the torque is amazing. They handle excellent. Restoring one WILL NOT be cheap, it ALWAYS turns out to be more expensive than you think.
  15. bigpaul

    1988 CR250 paint. PLEASE HELP

    The frame in this bike is powder coated: Also, check your water pump cover for rot and the radiators for being plugged from the water pump cover rot.
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