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#250r 1986 1986 trx 250r 1988 250 motor 250r 250r clutch 250r hybrid 250r motor 310 310 kit 330pv 38mm carb 450r 500r atc atc atc250r honda atc trx 250r atc250r axle bearings big bore build carb carburetor case cdi chrome clutch complete controls coolant counterfeit money cr250 cr500 drag electrical engine esr fenders flywheel for sale fourwerx frame frame chassis hybrid fullbore gears glamis graphics headlight honda honda 250r honda trx 250r hood ignition jetting jetting help carb kawasaki laegers lobo maier motor new guy parts paul turner pipe piston plastic plastics powdercoat powerband project pulse pwk carb quad quadtech question race fuel racing rebuild repair riding gear shift shaft shifter shocks spark sputter ssd solution suspension swing arm top end transmission trx trx 250r trx atc 250r trx250r trx250rhood trx250rstock trx330r wanted
  1. Engine and Transmission
    Im thinking about purchasing a new head and dome for my 86 250, the head i have now is shaved for high compression and has just over 190 psi. What are the pros of running a cool head compared to a stock head and dome? -Thank you!
    coolhead pro design top end
  2. General TRX250R Discussions
    I'm doing a new build on a 250r and I'm ordering a new chain and it comes with new sprockets. I can go up or down 12 to 14 on the front and i think 38 39 on the rear. Don't quote me there was about million combinations but one i did see the front was 14 and the rear was 36. Anyway I have the...
    bottom end sprocket teeth top end
  3. Engine and Transmission
    Well, i thought my quad was running perfect. But i was wrong. Took it to the coast and the top of head, there is a adapter were a coolent hose connects, i was riding it and i was torking it in 3rd, and the thing blew right off and coolant went everywhere. I have a BOG soon as i try to hit the...
    bog coolant heating hose top end
  4. General TRX250R Discussions
    From this picture u can see the problem i have on my hands. I would Really appreciate it if someone has a good deal on a usable top end. Im out of a job and can't afford to spend 300$ to rebuild it. Please And Thankyou! Tison.
    build engine rebuild top end
  5. Wanted
    From this picture u can see the problem i have on my hands. I would Really appreciate it if someone has a good deal on a usable top end. Im out of a job and can't afford to spend 300$ to rebuild it. Please And Thankyou! Tison.
    blown engine parts rebuild top end
  6. Engine and Transmission
    So I just put in a new 68mm wiseco with a fresh bore. I put the cylinder and head on and was only getting about 90lbs compression and could hear air leaking past the piston rings. Is this normal before breaking an engine in and what kind of compression should I get the rings seated? Thanks.
    break in compression ring seat top end
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