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up.yours

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    DT250MX Oil Delivery Sytem

    in The Bar

    Posted

    Your asking why a pump that has been running WITHOUT any lubricating oil in it for seven years doesn't work.......? Its not lubricated by the gearbox, but by the 2 stroke running through it.

    With a good pump bled correctly it will be fine. You could rebuild yours.

     

    I thought replacing the o rings would have been considered a rebuild. I can pump oil through the whole system using a syringe .

    DT250MX Oil Delivery Sytem

    in The Bar

    Posted · Edited by up.yours

    I have also ridden two strokes  along time (im older than you)

    back in my youth I road a jawa  350 for 19,000 miles on the same piston and bore quite often with a side car on it ,over a four year period, and sold the bike on to a mate who had it for a further two years on the same pistons  before he planted it into the side of a Cortina and wrote it off.

    this  was pre mix  only as it didn't come with a pump.

    , the only difference with the jawa was I used to mix the correct amount of oil to fuel ratio as laid down in the owners manual.

    surely if this bike was getting the wrong amount of fuel the engine would have collapsed either on the motor way down to brighton or   on it's merry way with fully loaded side car on it's way to the kent custom show. I even tracked it a couple of times (total humiliation) that was fun .

    anyway cleaver dick, next year when we go to squires you can take a look at my pump and tell me why it's   "FAILING"   to pump oil into the carbs.

    could you just imagine what would have happened if I had just filled the tank and rode off relying on these ultra reliable oil pumps im not having a go "honest" :)

     

     

     

    • Like 1

    DT250MX Oil Delivery Sytem

    in The Bar

    Posted · Edited by up.yours

    yes john ,amazing in the fact it has been pulling my bulk (19-20 stone) around for the past 7 years .

    tony , I was almost swayed into switching back to my pump by your comments.

    so today as it is my day off I set about removing the oil tank and pipe work to give a good clean before re-filling with oil (EXOL fully synthetic racing oil)

    started the bike up but no oil came out  so I gave it a good blow job to see if that would force some through ,

    no joy there so I changed the pipes for some fresh pipe and replaced the O rings just in case it was sucking in air.

    still no joy , so then I decided to inject oil manually through the system then kick her up , but still no oil other than the what I had pumped up there myself.

    so then  I left the bike running on tick over for fifteen mins to see if that would work .

    then decided bugger it  :shrug: I must be right.

    Clearing 2-stroke exhaust of Oil

    in The Bar

    Posted

    bootz1 take a leaf out of my book and rag the bollocks off it till it clears up , but don't get caught .

    speaking of which , I got caught not wearing my seatbelt the other day and issued with a £30 fine .

    my excuse of riding a bike and not being used to putting it on didn't wash with them.<_<

    DT250MX Oil Delivery Sytem

    in The Bar

    Posted

    first off , respect  YPVSTony. good response.

    but with respect I stand by pre-mix ,

    I have heard of pipe blockages, pipes falling off and diaphragm failure all leading to engine seizure.

    I don't know of any other rdlc using the oil pump with nineteen year old pistons, still in good condition  as are mine.

    as far as practical goes , I have a 350ml pop bottle under the seat  with silkolen comp 2 off road t2 oil in it,

    this is my routine

    1. run tank to reserve ,look for garage.

    2. enter garage,  empty pop bottle into tank

    3. put fuel into tank (about 10-13 litres )

    4. once you have paid for your fuel the speed hump on the way out of the garage mixes the fuel/oil for you.

    job done , totally practical

    DT250MX Oil Delivery Sytem

    in The Bar

    Posted

    oh no , here we go again !!!

    Go for it ravies , pre mix is more reliable 

    Why do you think all the racing bikes do it.

    lots of two strokes are in the grave yards due to pump failure . If you pre mix you know it's in !!! Don't you.

    Mine has never had a rebuild  and is still going strong on a 19 year old set of pistons.

     

    Clearing 2-stroke exhaust of Oil

    in The Bar

    Posted

    pre mixing is the answer, I have never had to clean my baffles in the seven years I have had the bike, and nether did my mate in the twelve years he owned it.

    although some people like there bikes smoking and oiling up all the time so the choice is yours.

    Squires 2015

    in Events, Rideouts & Trackdays

    Posted

    fist off is murph with mellow yellow on arrival  then arriving in seaways these rd's put mine to shame , but I didn't put mine away and spend the next two days cleaning it here's part of the YOC arriving at scarborough  andy paul and tommy coppering up for a bag of chips between them  finnerz and blackhat thought that was the one they would get.   and finally who remembers these beauties on the beach 

    • Like 2
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