| Author | Message | ||
     Imadog |
Couple of rides ago, I had to put it on reserve. I took off and in 3rd gear opened the throttle wide open. 3 or 4 seconds later the bike spit and sputtered like it was out of gas. After filling the tank up I tried it again with the same results. I ordered a fuel petcock from American Sport Bike, should be in next week. I am hoping that will take care of it. I don't think the main jet is clogged because it runs good for a couple of seconds. Any thoughts? 2000 M2 9k miles. | ||
| Stev0 |
Sounds like a blocked fuel tap... It will give enough fuel for normal use but when you require more it uses what's in the bowl and can't fill it fast enough for what you need. I'd strip and clean the fuel tap.. Or you can buy a new one like you have... Flush your tank out before you out the new one in too . | ||
| Imadog |
I thought about just cleaning the petcock out, but on my 1981 KZ750, when I went to cleaning it the filter appeared to be a fine plastic mesh and everything seemed brittle. Thanks for the quick response!! | ||
| Stev0 |
I haven't pulled one out of an M2, only played with fuel pumps on Buell tanks.. The HD's have a fine plastic mesh like you describe, so I'm going to guess the M2 will be the same.. A new one's easier anyway. . | ||
| Ratbuell |
Your float is set too low, closing the needle too soon and keeping the bowl from filling up. Normal riding you don't notice but when you whack it the bike gulps it dry. Follow the manual procedure (I.e. bend the tab) to set a higher float level. | ||
| Imadog |
If the fuel petcock does not fix this, I am sure to go through the carb. The bike has run flawless since I rejetted it last year. I can't imagine the float level changing over night, maybe with vibration? Also if the float level is set to low shouldn't the bike run lean through out the entire RPM range? It could have the needle sticking. I replaced that last year, but with these newer fuels, maybe it's messing with the rubber tip. Thanks for your suggestion. | ||
| Hootowl |
"shouldn't the bike run lean through out the entire RPM range?" No, the jetting determines lean/fat...unless you run the bowl out of gas because the needle/seat/float isn't letting enough gas in to replace what's being sucked up. | ||
| Hootowl |
To clarify, does it do this only when on reserve? Maybe when you switched to reserve, some goop broke loose and is clogging your filter.  Try blowing through the filter? | ||
| Imadog |
Went for a long ride yesterday and could not get it to duplicate. Either the blockage has passed or the only other thing I can think of is that I got it up into the Rev Limiter on my DynaTech 2000-Hd2E8P ignition module. I have it set at the lowest setting of 6000 RPM, and without a tach and how quick it revs...? Thanks for all the responses. | ||
| Lakes |
i would say your right, you hit the rev limiter. i have the same ignition ( the one that mounts in stock position , not the smaller one that mounts to motor). i used it as felt the Buell lightning runs too aggressive . i have mine set at 6,500. | ||
| Imadog |
Lakes, I set mine to Advance Curve 2 which is based on this article. http://www.nightrider.com/biketech/hdignitionspors ter.htm Tried to solve a detonation problem with this ignition module, but seems like it is more of a valve train noise. |
