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neversaydie

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Posts posted by neversaydie

    Honda CB550 Cosworth

    in General

    Posted

    Cosworth were mostly associated with motor car racing a lot of work with Ford in the 70s and 80s. Many of us older chappies will remeber the sierra cosworth/escort cosworth etc. Wasnt aware they worked with the bike manufacturers

    Three white wires

    in Yamaha Workshop

    Posted

    For the pick up coil check you need to measure on the pick up coil side of the connector. Depending on the year of the bike, 1987 to 1993 should read 140 to 170 ohms. 1994 -on should be 182 to 222 ohms

    I have to say, the wire colours dont match with the drawings ive seen, but judging by the state of the wiring, its possible its been "worked on" over the years.

    Your making progress. I reckon theirs a good chance the stator is ok looking at the readings. The readings to earth of the 3 whites of 1 means massive resistance ie no connection to earth (off the scale of the meter)

    If I were in your shoes, and before i do anything else, Id get rid of those crap connectors and replace them with bullet type. Cut back all the black copper back to good, crimp and solder on the bullets (after sliding on some heat shrink sleeving). Get your hair dryer on the heat shrink.

    When the wiring is all good, then look at the ignition coils. Double check for good clean connections, and make sure that whre the coils are mounted on the frame, that the mounting is good, clean and secure as thats the earth for them. 

    sparkplug caps

    in The Bar

    Posted

    On 19/11/2016 at 3:39 PM, fishermanferg said:

    anybody know the sparkplug cap resistance should be on a 1992 xv535 2yl ive got used coils and leads and they tested fine but would like to know if the caps resistance is important the plugs are ngk bpr7es

    According to the book, resistance is 10,000 ohms

    Three white wires

    in Yamaha Workshop

    Posted

    On 15/11/2016 at 0:45 PM, Spike101uk said:

    Also I tested the 3 white wired coming out of the RR, on positive and negative, and of 6 test on 3 wires most were about 603 but 2 were about 592 ish, is this close enough or is this an indication of a knackered RR also 

     

    Thanks in advance,  I'm new to taking bikes apart and fault finding, 

    If youve carried out the test correctly, then the RR may be good

    Check stator as described now

    Three white wires

    in Yamaha Workshop

    Posted

    2 hours ago, Spike101uk said:

    Awesome I will check those ans upload some pics at first available opportunity ,  also do I need the battery connected to conduct these tests as it's currently sat on my side charging?

    Nope

    You also need to do Step 4 on the Electrex fault finding chart, to try to isolate a possible RR fault

    Three white wires

    in Yamaha Workshop

    Posted

    If my failing memory hasnt completely let me down, your stator should have three white cables leading from it to a plug connector. It should also have two further cbales kleading to a seperate plug connecotr, most likely these may be red and green. If the stator is still in the bike, do the following.

    Unplug both the white and the red/green plugs from their mating connectors

    Set the meter at the sign that looks like a horseshoe

    Measure between white 1 to white 2

    Measure between white 1 to white 3

    Measure between white 2 to white 3

    Stick the black lead onto a good clean earthing point on the bike, and measure between white 1 to earth, white 2 to earth, white 3 to earth

    Measure between the red and the green cables

    Post the figures up to see

    Might be an advantage to post up some piccys too

    what ones

    in The Bar

    Posted

    Secondary readings are in the thousands, so youll have to switch your meter to read in that range. Normally, the ohms (resistnace) range scales up in factors of ten, so hopefully your meter will have a dial that looks like this

    photo Avo.jpg

    resistance range is the one with the horsehoe. Primary is measured with the dial set at 200. Secondary (12k to 14.5k), move your setting to 20k (k = 1,000)

    Your meter may differ and may read 100/1k/10k/100k etc. In that case, you would set at 100k as 10k would be too low.

    Unless youve got a really good meter with just one range

    Always zero your meter first, or check by holding the probes together and ensure it reads zero

    By the way, id be concerned that the new ones only read 2.1

    Hope this helps

    what ones

    in The Bar

    Posted

    Dont compare the readings between the new and the old. Resistances for the new should be:

    Primary: 3.8 to 4.6 ohms @20 degrees C

    Secondary: 12,000 to 14,500 ohms @ 20 degrees C

    Take the plug cap off for checking the secondary

    Two punctures in my first 800 miles

    in General

    Posted

    2 hours ago, Trev The Rev said:

    Am I just unlucky? First was a flit spwhich I had repaired. Second is a slow puncture that can't be found. I don't have time to worry about such things so got a new tyre fitted. The important thing is to get to work and get home. I may have not done the tyre much good riding it to the dealers when flat with the first puncture.

    Shoukd I carry an emergency canister? Or have I just been unlucky. 

     

    I'm riding a 50cc Neos 4. Don't laugh - it does the job really well on narrow twisty lanes going to work and back. 

     

    I'm getting 120 to 125 miles to the gallon, so I have spent more on the puncture and the new tyre than I have on petrol.

    Unlucky? No. Riding on a flat tyre is likely to have chuffed the wheel up, and is the likely cause of the slow leak due to the damage. Best bet was to remove the wheel and take it in for tyre fitment. If youd had an accidnet, its likely your insurance may have been invalidated

    I dont laugh at anyone on two wheels

    xt 600 1991 rear brake prob

    in Yamaha Workshop

    Posted

    If youve taken the piston out and not replaced the seals, theres a chance that the old seals have "swelled" once the piston was out. . If it were me, Id have the old seals out, thoroughly clean everything, check the piston fits ok before fitting the new seals in. Then refit all

    • Like 1

    After Market Mirrors

    in The Bar

    Posted

    Depends on how high and wide the mirrors are relative to you body position. As an example, the mirrors on my virago are good (low ride/high wi dish bars) .The fazer mirrors are poor (higher ride/mirrors lower and less wide. Have a search for Riderscan mirror

    • Like 1

    Stafford Show tomorrow

    in General

    Posted

    Its tomoroow for me, looks to be the best day for weather. Not much on the shopping list this year, cant be much ive not got. On the list though, are knee sliders, PlusGas (if its still made), WD40, maybe a decent pair of short gloves, and anything that takes my fancy.

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