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Post by metalforever on May 3, 2009 10:08:33 GMT
Okay, so as some of you know i recently gave the bike (Xj600s 1997) a relatively thorough service which included:
Both brakes rebuilt
Engine oil and filter change
Spark plugs changed
Air filter changed
Valve clearances adjusted
New front tyre
etc.
My point here is that all the things neccesary for correct running where checked. Except for carb cleaning/balance.
Now, sometimes when im out on a ride the bike is fine, yet last night after ragging the bike about continuously for 10-15mins whilst riding home from the lasses it got a bit lumpy, nto bogging and cutting out but asif it was overfueling slightly. I came to one junction and it popped from the exhaust.
It was hesitant to pick up at times too.
Having nto checked the plugs yet (although the mixture was fine before i serviced it) i expect the carbs could do with balancing but im not really sure, can anyone give me some advicse as to how to sort this out?
I originally serviced the bike because it was doing this but far worse.
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Post by CD on May 3, 2009 17:35:11 GMT
Have you accidentally moved the TPS?
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Post by metalforever on May 3, 2009 20:05:43 GMT
TPS? if thats Timing then no i havent... infac i dont think ive moved anything essential to running. and the bikes been fine tonight and like usual it got a ragging!
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Post by bobh on May 3, 2009 20:39:42 GMT
Doesn't sound like simple carb balancing. Out-of-balance carbs make the tickover lumpy, but shouldn't have a noticeable effect otherwise.
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Post by chunk166 on May 4, 2009 0:32:00 GMT
I had a similar thing with my D9, it was suggested by my local bike shop & here that it could be 1 or more pilot jets blocked or dirty as it was happening below 2,000 rpm or it could be something totally different.
Ray
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Post by CD on May 4, 2009 7:53:42 GMT
Dirt in the carbs is always a possible for low speed flat spots. Also, how old are the spark plugs? Ive had plugs with electrodes that looked ok, but the insulators were breaking down making it run rough. The TPS is the funny electrical block on the side of the carbs. It adjusts the ignition timing according to throttle position. It avoids pinking and backfiring so might be worth checking. Maybe a wire has broken. diversionclub.proboards.com/index.cgi?board=techarticles&action=display&thread=3821 |
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Post by metalforever on May 4, 2009 8:08:14 GMT
cheers guys, i certainly dont think the pilot jets blocked as it idles fine. infact to be honest it was fine last night, im thinking maybe it just doesnt like being ragged about from cold too much! I'll check the 'tps' whilst im on with finding a solution to the broken fairing  |
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Post by themrs2 on May 4, 2009 12:13:44 GMT
cheers guys, i certainly dont think the pilot jets blocked as it idles fine. infact to be honest it was fine last night, im thinking maybe it just doesnt like being ragged about from cold too much! I'll check the 'tps' whilst im on with finding a solution to the broken fairing To MF Do you find that you have to leave the bike running for 10-15 minutes or even then have to go 5 or so miles up the road before it runs smoothly? . . . . .I think I might be having th same problem with mine. Stu |
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Post by metalforever on May 5, 2009 6:38:35 GMT
neah mine isnt that bad to be honest, its sometimes a bit tricky to get started from cold but once it's able to rev up its fine.
I did rip out some pesky little washers from between the carb and engine today. it made the bike alot more smoother and pretty quick too, although its now got a bit of a flat spot at about 3000rpm if accelerating harshly, is this normal for the div?
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Post by amorti on May 5, 2009 10:53:37 GMT
something simple like the choke locked on? Maybe you pinched cable when putting it back together.
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Post by metalforever on May 5, 2009 14:27:12 GMT
I too thought choke mate but its free and slides all the way in and out. Also the plugs look fine so i doubt its that, either way it hasnt happened again since i started this topic so theres a start!
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Post by CD on May 5, 2009 14:36:54 GMT
Individual choke plungers can stick best to check them all with a small mirror.
It's best to avoid harsh accel at relatively low revs as it puts more stress on the engine.
Many bikes have an engineered-in a flat spot to get through the noise and emission regulations. This might be the Divvie 600 version.
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