Search found 5 matches
- Thu Sep 10, 2015 9:12 pm
- Forum: FZR400
- Topic: lost 1/3 to 1/2 power (race bike)
- Replies: 7
- Views: 4192
Re: lost 1/3 to 1/2 power (race bike)
Used a spark gap tester to confirm that coils/wires/caps were all OK. Removed carbs and whaddya know, whoever took them apart previously thought it a good idea to use either loctite or rtv, there was this rubbery reddish residue in a few places. Including one ~4mm diameter disk of the stuff LODGED I...
- Thu Sep 10, 2015 2:07 pm
- Forum: FZR400
- Topic: lost 1/3 to 1/2 power (race bike)
- Replies: 7
- Views: 4192
Re: lost 1/3 to 1/2 power (race bike)
When you check the carbs, check also the air jets if some of them might be partially clogged and the swimmer-valves and valve-seats if there is one or mor worn-out...and bend the diaphragmas carefully in order to check for dents and cracks/splits/tears... Will do, thanks! Also picking up an ignitio...
- Wed Sep 09, 2015 10:10 pm
- Forum: FZR400
- Topic: lost 1/3 to 1/2 power (race bike)
- Replies: 7
- Views: 4192
Re: lost 1/3 to 1/2 power (race bike)
plugs all were light tan in color, though it seemed most were wet, at least one was dry... They were all in the .028" to .030" gap range, within spec. Plug wires, and plug caps were all in spec resistance range, with the coils themselves a little higher than the max spec of 2.2 ohms at 2.4 and 2.8 W...
- Wed Sep 09, 2015 4:39 pm
- Forum: FZR400
- Topic: lost 1/3 to 1/2 power (race bike)
- Replies: 7
- Views: 4192
Re: lost 1/3 to 1/2 power (race bike)
Air filter looks fine. Choke linkage and throttle linkage are OK. Will try to check resistance across coils and ignition wires this evening (hopefully). Will have a look at plugs, probably just replace them all in any case. Probably remove carbs and inspect the needle valves and main jets. I guess t...
- Wed Sep 09, 2015 12:21 pm
- Forum: FZR400
- Topic: lost 1/3 to 1/2 power (race bike)
- Replies: 7
- Views: 4192
lost 1/3 to 1/2 power (race bike)
At New Hampshire Motor SPeedway the other day the bike suddenly lost a fair amount of power on about my 2nd or 3rd practice lap. Just seems to bog. It starts and idles fine but as soon as any load is applied it immediately bogs down. Will run up the entire rev range with the same torque loss through...