dangerous Posted September 30, 2009 Share Posted September 30, 2009 Hey all, further to my thread on the miss at 2800rpm... Well... things have deterated, the bikes at the shop now and the as it it very hard to start, shitty idle or no idle missing at all revs below 3000... the following has been checked and ok'd: TB ballance TPS checked valve clearances reset nill faults on ECU new plugs (existing were very sooty) any ideas why this thing is being a shit head Link to comment Share on other sites More sharing options...
richard100t Posted September 30, 2009 Share Posted September 30, 2009 Did you check the rubber throttle body intake sleeves? Those are prone to cracking & letting in extra air, thus ruining your day. Link to comment Share on other sites More sharing options...
docc Posted October 1, 2009 Share Posted October 1, 2009 Cold we just continue this on the original thread? All the history would be there . . . Link to comment Share on other sites More sharing options...
dangerous Posted October 1, 2009 Author Share Posted October 1, 2009 Cold we just continue this on the original thread? All the history would be there . . . yeah sorry docc... thought that thread had wondered of topic a bit, and that was more about the mag drop at 2800rpm... this issue is more it now running like a bag a shit. Did you check the rubber throttle body intake sleeves? Those are prone to cracking & letting in extra air, thus ruining your day. checked and all seem ok thanks. Link to comment Share on other sites More sharing options...
docc Posted October 2, 2009 Share Posted October 2, 2009 What are your voltages 1) key on 2) idle and 3) at 2500 rpm? Link to comment Share on other sites More sharing options...
dangerous Posted October 2, 2009 Author Share Posted October 2, 2009 What are your voltages 1) key on 2) idle and 3) at 2500 rpm? Ok, done through my radar detector (8500 escort) so might not be the most accurate. 1) 11.2 2) 11.5 3) 12.9 that mean anything? Link to comment Share on other sites More sharing options...
luhbo Posted October 2, 2009 Share Posted October 2, 2009 What are your voltages 1) key on 2) idle and 3) at 2500 rpm? Good one, Docc This becomes interesting. Hubert Link to comment Share on other sites More sharing options...
raz Posted October 2, 2009 Share Posted October 2, 2009 Ok, done through my radar detector (8500 escort) so might not be the most accurate.1) 11.2 2) 11.5 3) 12.9 that mean anything? If those figures are correct you have a charging problem. Measured at the battery terminals they should be like >12.5, >13, >14. This problem should not cause the other but maybe it does. Link to comment Share on other sites More sharing options...
luhbo Posted October 2, 2009 Share Posted October 2, 2009 Hang a good battery in parallel and see whether the bike runs better. Somehow I wouldn't be too surprised if it has an influence. Hubert Link to comment Share on other sites More sharing options...
docc Posted October 2, 2009 Share Posted October 2, 2009 If those figures are correct you have a charging problem. Measured at the battery terminals they should be like >12.5, >13, >14. This problem should not cause the other but maybe it does. Agreed regarding the correct voltages. How old/what model is your battery? I found my poor running problems to improve immensely by freshening the charging system. The ECU does not operate well at these low voltages. Link to comment Share on other sites More sharing options...
dangerous Posted October 3, 2009 Author Share Posted October 3, 2009 If those figures are correct you have a charging problem. Measured at the battery terminals they should be like >12.5, >13, >14. This problem should not cause the other but maybe it does. done at terminals: 1) 12.8 2) 13.2 3) 14.0 this tells me alls ok? Agreed regarding the correct voltages. How old/what model is your battery? Battery is std 04 Lemans my batt tender shows it strong and with 14v So to day I: checked all sencors, all seem good checked air filter, new and clean cleaned TB and linkages found a bit of movment when wrigling the shaft with linkages and springs on them under the right TB... that ok? checked rubber inlets, all good as new. changed the oil, now this was done not so long ago but was blacker than a black thing... what ya think due to running rich? Link to comment Share on other sites More sharing options...
raz Posted October 3, 2009 Share Posted October 3, 2009 Yeah charging is OK. That throttle shaft wiggle is common and I don't think it's the problem. Link to comment Share on other sites More sharing options...
lemppari Posted October 3, 2009 Share Posted October 3, 2009 Well correct me if I'm wrong, but if all trouble seems to be happening under 3000, could it be something wrong with ignition timing? At least with old big blocks you get full advance right about there and the engine wasn't so fussy about few degrees here and there when at 3000 or over, but below that it's a different thing alltogether. Link to comment Share on other sites More sharing options...
Skeeve Posted October 3, 2009 Share Posted October 3, 2009 Bad ground? Clean your connections... Link to comment Share on other sites More sharing options...
luhbo Posted October 3, 2009 Share Posted October 3, 2009 Has someone already mentioned stuck injectors so far? Hubert Link to comment Share on other sites More sharing options...
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