Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Oct 2, 2016 19:33:13 GMT
a) definitely changed for the worse, but the bike will be able to climb hills and mount kerbs.
b) You already know- its the difference between a 43HP bike and a 27HP bike! You would notice.
I have never understood the rationale of the 20kW reduced power 400 bike in Germany. Yes- it was the licencing or insurance classifications or something. But why buy a 400 strangled to 27HP when a cosmetically identical and cheaper 250 had 26HP and at least the gearing to make use of it?...
|
|
|
|
Post by szabgab on Oct 2, 2016 21:14:37 GMT
a) definitely changed for the worse, but the bike will be able to climb hills and mount kerbs. b) You already know- its the difference between a 43HP bike and a 27HP bike! You would notice. I have never understood the rationale of the 20kW reduced power 400 bike in Germany. Yes- it was the licencing or insurance classifications or something. But why buy a 400 strangled to 27HP when a cosmetically identical and cheaper 250 had 26HP and at least the gearing to make use of it?... That is a mystery. The problem is, I haven't ridden an another SD in my life, only mine (I'm lying, I did ride a 250 when considering, which one to buy), so I can not compare. This friend of mine lives rather far from me, so that would be rather counter-intuitive to visit him out in the sticks to try his restrained version  But I guess, mine will be the restrained version too - the bike was an import from Germany, it is OK but not a power-master. I could never do any wheelies (I did try, no luck ) and a modern maxi-scotter can outrun me easily at the red light Also the paperwork states 20KW (but again, even if I swapped the camshaft tomorrow, the paperwork would stay exactly the same, wouldn't it?) There are a good few broken up SD's in Hungary, but they will be all the restrained German gray-imports Fuel consumption wise - mine does the same amount of miles, are yours do (50-55MPG). Would you think it would drop signifacntly with a new camshaft? |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Oct 2, 2016 21:21:20 GMT
What does your engine number start with- first 4 or 5 will do?
|
|
|
|
Post by szabgab on Oct 3, 2016 7:16:28 GMT
What does your engine number start with- first 4 or 5 will do? CB400NE3205670 |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Oct 3, 2016 7:33:52 GMT
32***** Frame and Engine numbers were allocated by Honda to the CB400NB low power 20kW bike sold into Germany.
I wonder if the bike has been converted to full power in the past though? I would pop the valve cover off and measure with calipers the major diameter of the camshaft lobes. Take 5 mins.
If it still is low power you really must get a high power camshaft in there- it will be a different bike!
|
|
|
|
Post by szabgab on Oct 3, 2016 7:53:25 GMT
32***** Frame and Engine numbers were allocated by Honda to the CB400NB low power 20kW bike sold into Germany. I wonder if the bike has been converted to full power in the past though? I would pop the valve cover off and measure with calipers the major diameter of the camshaft lobes. Take 5 mins. If it still is low power you really must get a high power camshaft in there- it will be a different bike! Blimey, thanks! So what do I measure? The whole thing - across the lobe, lift and all (like the height of an egg, let's say?) |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Oct 3, 2016 9:23:58 GMT
Yes its easy. As you say measure the cam lobe as if it is the height of an egg (love this description!)
If you turn the engine so the cams are more accessible- horizontal. Just choose, say an inlet cam and measure the total distance between the base of the cam and the tip. For inlet, the full power cam is 37.280 mm and the 20kW cam is 34.485 mm. These are actually the minimum of the tolerance window for manufacturing but good enough for comparison as you can see there is nearly 3 mm difference...
I am still 50/50 you have the "hot" camshaft in there as it will ride like a slug with the low power camshaft fitted. Or- you are going to get a good surprise!
|
|
|
|
Post by szabgab on Oct 8, 2016 21:18:13 GMT
Yes its easy. As you say measure the cam lobe as if it is the height of an egg (love this description!) If you turn the engine so the cams are more accessible- horizontal. Just choose, say an inlet cam and measure the total distance between the base of the cam and the tip. For inlet, the full power cam is 37.280 mm and the 20kW cam is 34.485 mm. These are actually the minimum of the tolerance window for manufacturing but good enough for comparison as you can see there is nearly 3 mm difference... I am still 50/50 you have the "hot" camshaft in there as it will ride like a slug with the low power camshaft fitted. Or- you are going to get a good surprise! Hey! I did try to measure the lobes,but it is impossible to access, unless one takes the long case bolts and unmounts the arms feom above (or I'm an amateur, and there is an easy way ) I did try to measyre by the eye - holding the caliper above and hoping for a reasonable accuracy. I did measure 33,3 which is neither of your measurements... But I do start to suspect the bike to be the tuberculotic type. I'm writing this via my phone,and I have taken some pics too, so I will attach some tomorrow, but the question is, where to get a proper camshaft? Ebay ia full of the German types, I guess nobody wanta those Oh and there are some markings on the shaft, a big J and R8 underneath (if this helps with identification) |
|
|
|
Post by szabgab on Mar 12, 2017 23:51:10 GMT
Yes its easy. As you say measure the cam lobe as if it is the height of an egg (love this description!) If you turn the engine so the cams are more accessible- horizontal. Just choose, say an inlet cam and measure the total distance between the base of the cam and the tip. For inlet, the full power cam is 37.280 mm and the 20kW cam is 34.485 mm. These are actually the minimum of the tolerance window for manufacturing but good enough for comparison as you can see there is nearly 3 mm difference... I am still 50/50 you have the "hot" camshaft in there as it will ride like a slug with the low power camshaft fitted. Or- you are going to get a good surprise! Hey! Sorry to bring an old thread back, I just managed to get to the camshaft (by taking the top apart, bike smokes like crazy). Anyway, I measured more or less 37 mm all across the board (36.9, 36.9, 37.00, 37.10). I guess, this must mean, I have those hidden horses already unleashed, but are those values OK? |
|
