- Joined
- Jun 4, 2013
- Messages
- 106
I've searched the archives, and while I found similar, nothing seems to fit this situation-
Bike was running good. But did not seem to be running 100% on the right side. This bike has all new wiring last year, new coils last year, new battery, Pazon ignition, twin amal carbs. Changing plugs, ran good at idle, on road really missing, came home and cylinder not running at all, or if (I do get a puff of smoke occasionally) running very sporadically.
I've done this:
1) double checked timing with strobe- off a tad, now as close as I can get it.
2) replaced plugs, wires and caps with good copper core wires and NGK resistor caps, new NGK plugs
3) switched wires, plugs
4) took lead at plug, and switched to other plug leaving the coils the same
No change. Bikes starts 1st kick, but same problem. pulling right lead off plug while running- no change. Pull left while running, immediate kill.
I had compression, at least enough to run as a thumb pressed firmly over spark plug hole cannot be held in place with even a mild kick through,
and the gas the sprayed out, indicates it is getting gas.
A check of spark at the right lead, shows good spark.
things I haven't done yet:
1) I have not load tested battery- but have a bright light off, and running so should be enough.
2) Haven't checked valve settings, but no clatter and good compression , and since I set them early season, should be close enough to fire but will recheck as a next step
3) have not checked coils
I feel I can rule out gas, compression, and timing- which just leaves elec. Yet I'm getting a good spark. I do understand that a plug can spark good when not under pressure and fail when under load, but changing plugs did nothing. Can it be a coil- have 2 newish coils (under a year and 1000 miles)- thats breaking down under load? Yet, running the opposite coil to right side is no change.
I'm now at a loss. Any help appreciated.
Bike was running good. But did not seem to be running 100% on the right side. This bike has all new wiring last year, new coils last year, new battery, Pazon ignition, twin amal carbs. Changing plugs, ran good at idle, on road really missing, came home and cylinder not running at all, or if (I do get a puff of smoke occasionally) running very sporadically.
I've done this:
1) double checked timing with strobe- off a tad, now as close as I can get it.
2) replaced plugs, wires and caps with good copper core wires and NGK resistor caps, new NGK plugs
3) switched wires, plugs
4) took lead at plug, and switched to other plug leaving the coils the same
No change. Bikes starts 1st kick, but same problem. pulling right lead off plug while running- no change. Pull left while running, immediate kill.
I had compression, at least enough to run as a thumb pressed firmly over spark plug hole cannot be held in place with even a mild kick through,
and the gas the sprayed out, indicates it is getting gas.
A check of spark at the right lead, shows good spark.
things I haven't done yet:
1) I have not load tested battery- but have a bright light off, and running so should be enough.
2) Haven't checked valve settings, but no clatter and good compression , and since I set them early season, should be close enough to fire but will recheck as a next step
3) have not checked coils
I feel I can rule out gas, compression, and timing- which just leaves elec. Yet I'm getting a good spark. I do understand that a plug can spark good when not under pressure and fail when under load, but changing plugs did nothing. Can it be a coil- have 2 newish coils (under a year and 1000 miles)- thats breaking down under load? Yet, running the opposite coil to right side is no change.
I'm now at a loss. Any help appreciated.