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Messages - El__burro
16
« on: April 25, 2018, 08:46:13 AM »
so far, its sorted. I have wrapped some electrical tape around the screw. i am aware that it is not the final or lasting solution but... do they sell that part? Thanks el__burro  Sent from my SM-G935F using Tapatalk
17
« on: April 24, 2018, 12:41:04 PM »
"Either the contact surface or the small insulation washers on the bolts that connect the wire to the points arm. If it touches earth here, then you'll get no switching at all"
Thanks K2-K6
I think this is probably the cause of the problem, the little red rubber washer that isolates the screw that connects the wires to the points assembly.
I'll try to reproduce that, should electrical tape do the job?
El__burro
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18
« on: April 24, 2018, 08:38:47 AM »
Good morning,
I am struggling with my cb750 k2 as it starts on 1-4 cilynders only,
so far i have:
- Swapped the coils around then replaced with a new one.
- Bypassed the yellow wire to coil 2-3,
- Replaced condenser
- Checked timing and points gap.
- Replaced and regapped the spark plugs
None of these has sorted the problem.
HINT: i noticed that if i short points 1-4 to ground, engine dies, if i short 2-3 it only causes sparks but engine stays on.
Most of time i get no reading from 2-3 with strobo light.
What else should i check.
Thanks
El burro
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19
« on: September 10, 2017, 06:03:58 PM »
its not touching while it's not moving but if i hit a bump or a hole, yes, even when I ride alone. I'll have to play with the rear mudguard to clear some distance.
thanks
el__burro
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20
« on: September 10, 2017, 11:50:45 AM »
Thanks, i have what you can see on the picture (original Tec like). I guess the best thing to do is to play with the adjustment and rear fender. Thanks el__burro  Sent from my SM-G935F using Tapatalk
21
« on: September 09, 2017, 05:18:58 PM »
Good day,
I "may be" a bit heavy and the fact that I chopped the rear off doesn't help.
I have tried adjusting within the 3 settings but still I have the feeling that something might be wrong.
is there any way to test if the rear shocks are doing what they are supposed to do.
Is there a tutorial on how to refurbish them,
Is there an alternative ( not too expensive) out there.
thanks
el__burro
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22
« on: August 13, 2017, 11:38:49 AM »
Engine has never been touched.
As i mentioned at the beginning I wanted the bike to be more responsive not faster.
I'm getting there..
I'll try my best to do a "plug chop" but it will be hard as i don't have a rev counter.
Thanks
el__burro
23
« on: August 13, 2017, 01:33:27 AM »
Replaced the needles with brand new ones, put the clip on 3rd gap, cleaned it all and.. it goes much better. Now it struggles a bit on the full throttle.
I didn't manage to check the plugs.
Any advice?
Thanks
el__burro
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24
« on: August 11, 2017, 10:47:41 PM »
After swapping the spark plugs for NGK D8EA I've seen a tiny improvement. Still Plug 4 is perfect (almost too lean) while the other 3 still a bit carbon fouled (less than with previous plugs) but at least the same colour.
Needle clip is at the bottom but bike still struggles in the mid part of throttle.
In the meantime i have re adjusted the timing.
Thanks
el__burro
the needle clip at the bottom? is that the lowest groove? that would give a rich mid-range,,try fitting it either in the middle groove,or
second from the top ,
that should clean up the middle range
Will do tomorrow. Thanks a lot el__burro Sent from my SM-G935F using Tapatalk
25
« on: August 11, 2017, 09:21:42 PM »
After swapping the spark plugs for NGK D8EA I've seen a tiny improvement. Still Plug 4 is perfect (almost too lean) while the other 3 still a bit carbon fouled (less than with previous plugs) but at least the same colour.
Needle clip is at the bottom but bike still struggles in the mid part of throttle.
In the meantime i have re adjusted the timing.
Thanks
el__burro
26
« on: August 08, 2017, 12:12:11 AM »
k2-k6 you are correct, i am heading to Halfords tomorrow to see if i can find either a set of plug caps or a set of plugs with no R.
Thanks
el__burro
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27
« on: August 07, 2017, 06:31:16 PM »
Again,i have synced the carbs with the same air mix screw turns, (1and 1/2) carbs sync almost perfect. Still plug 1,2 and 3 are quite black with carbon deposit, number 4 i think looks ok. DO I set the other 3 carbs air mix screw to a different setting? Thanks el__burro  Sent from my SM-G935F using Tapatalk
28
« on: August 03, 2017, 05:20:29 PM »
UPDATE
Plug 4 reads ok while the other 3 are fouled with carbon. all carbs needles are set up the same way and synced. After a 10 minutes ride i have notice that when i play with the fuel tap (on/res) it goes slightly better. It struggles at low rpm but when it reaches the second part of the throttle it pulls much more. Not sure if it is my imagination or there is a logic behind this. I have fitted the plugs DR8ES L and it goes "slightly" better.
Thanks
el__burro
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29
« on: August 02, 2017, 04:48:37 PM »
What's the cost for a dynodyno test and where in london.
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30
« on: August 02, 2017, 12:11:56 AM »
Still running like sh*t.
when I rev it sounds great. The problem is the second part off the throttle, it feels like it is electrical. 2 of 4 plugs are quite carbon fooled. Needle is back on the last position so it lets in more fuel. What are the best spark plug I can fit with the resistor caps?
Thanks
el__burro
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