
Everything posted by Airhead
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Electrical Fault finding
I sometimes use a couple of paper clips if I cant get access with test leads, just straighten them out and poke them into the connector block.
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52 plate jogR
Hi, not familiar with the model but do Haynes do a manual for this?, All speedos used to be operated by cables, much simpler!
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1982 Yamaha xj 650 maxim - petrol tap pipes?
+1 the above Might be an idea to test your fuel tap at this stage too! Switch it to prime, hold a comtainer under the fuel pipe and you should get a flow., Now switch it to 'Run' the flow should stop. Now place the vacuum pipe in your mouth and suck on it, the flow should resume...JOB DONE
- DAS
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Passed my Test!
Great news Mikey, well done mate
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Oily brake disk
I'm not saying it hasnt been tampered with, it might be the case, I'm just pointing out that it might have undone itself if it wasnt tightened up properly, you should be able to judge for yourself if it could come completely off, myself i would think yes it could, given that the forks do a fair amount if bouncing up & down over grids, potholes and speed bumps
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Another YZF R125
Nice...
- Fat Cow!
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Transporting Bikes?
Can your dad drive, how about hire a van and then youre fully in control of your transportation issues, can you hire bike trailers and tow with a car, dunno! might be worth looking into. Personally i wouldnt want to hand my bike over to anyone unless they were professional bike transporters.
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pin-pointing charging woes
Hi are you sure its a charging issue? Does your battery go flat if left for a period of time, indicating a leakage issue? Another thing i noticed when reading this is that Neil stated the field coil resistance to be 4.0 ohms, but you have stated it as "Resistance reading from green/brown (brushes) at connector was .1/.2 . " ... Which would indicate either a short circuit there, Or you didnt put a slip of paper between the brushes and slip ring and had the connector block plugged in. Or that i have mis-understood what you are saying here, because this should be the field coil resistance figure you quoted as "Field coil resistance should be 2.7 to 3.3 ohms. Is that what I should be getting from the brushes?" Also did you do any testing to ground (chassis) from all coil connections field and stator, switch meter to maximum resistance reading, black lead to the steel body and red lead to coil connections, expect no reading, any reading is an insulation breakdown. Next, your voltage regulator is a moving contact (relay) type yes? Remove the cover and check the contact have not stuck and are free to move also clean the contacts with a petrol soaked rag, or if they look burned use a strip of fine emery or medium wet / dry to clean them, Although they can get so burned they are un useable and a replacement would be needed in extreme cases.
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125 SR (1987) not starting
Hi, first and second, charge the battery and check the fuse.
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SR125 CHOKE
Pah!...youre just showin off your new avatar.
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Fat Cow!
Man driving down narrow road, Woman driving up same road. They pass each other, man winds his window down and shouts "FAT COW", Woman yells back "BALDY TW*T", Woman then drives round corner, crashes into a huge cow and dies....If only women would listen.
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SR125 CHOKE
Heres a handle, any good? Here
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Spaghetti.
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rear sprocket
Damn....I was just gonna say that Should o had ye IRN BRU.
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rear sprocket
Just so long as the revs dont drop too low and out of any useful power, thats the drawback with 2 strokes
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rear sprocket
It wouldnt be worth the money spent on it, the front will make more difference and be cheaper
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rear sprocket
Steve, you might find this useful, gear ratios with different sprocket combos Gear Ratios - Motorcycle Front/Rear Sprocket Combinations ------14---15---16---17---18---19 49- 3.50 3.27 3.06 2.88 2.72 2.58 48- 3.43 3.20 3.00 2.82 2.67 2.53 47- 3.36 3.13 2.94 2.76 2.61 2.47 46- 3.29 3.07 2.88 2.71 2.56 2.42 45- 3.21 3.00 2.81 2.65 2.50 2.37 44- 3.14 2.93 2.75 2.59 2.44 2.32 43- 3.07 2.87 2.69 2.53 2.39 2.26 42- 3.00 2.80 2.63 2.47 2.33 2.21 41- 2.93 2.73 2.56 2.41 2.28 2.16 40- 2.86 2.67 2.50 2.35 2.22 2.11
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rear sprocket
Well done Steve you will make a great engineer with all that tinkering you do.
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shaft oil coming out of breather
Hi not familiar but the obvious answer assuming youve got the right viscosity oil, is theres too much in there, is there a dipstick or a fill level plug?
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rear sprocket
Must have missed that bit, well yes then, youve got room to change the gear ratio again. One other thing though, make sure your brakes are kept in top class condition, because all this extra speed will need them to be good, theyre drums are they? Jetting as well, but you know that.
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Does any one no where i can get.....
Crikey, do they still make those? I remember seeing them at Manchester bike shows back in the 70's
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putting on saddlebags
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The Dream Garage
Wish i did, would love a go on one.