Checked the speedometer cable and it was slippery smooth. That said, the noise has been absent this last week. It might be the speedometer itself...
Thanks!
1982 750 SECA (US) HITACHI HSC-32 carburetor I need the real story on the location of the pilot and main AIR jets which are under the little...
1982 750 SECA with 22,000 miles The bike is giving a wah wah wah noise during steady state driving (~35-40 mph). It is difficult to accurately...
The petcock picture was taken with the tank raised about 2”-3”. With the tank in it normal position, the filter sits slightly above the petcock...
I
Keep in mind my petcock may be different from your inasmuch as mine is an after market petcock which does NOT use vacuum to allow fuel to pass to...
I use an inexpensive small engine/motorcycle fuel filter available for about $2 from Amazon: [IMG]...
Is your SECA carbureted or fuel injection? You comment sounded as if you are dealing with a FI fuel pump. If it is FI look at your fuel regulator;...
I don’t want to dwell too much on the fuel filter (you know just because it solved my problem), but your symptoms are somewhat similar. So staying...
After waiting 20 minutes at the side of the road, did the bike fire up and behave as it should or did you have lingering problems? Also, did the...
I went though the same vent-less cap with a little XT200. Simple- but so frustrating. Thanks for your help with my current problem.
Ah, yes, the crankshaft position sensor. I’m familiar with most of this because I built this bike from the oil pan up. My advice to others is...
Solved (hopefully). #Bruce W’s comment pulled my attention to fuel. I changed the little mini fuel filter and all seems good. In an effort to...
I plead ignorance: what are pick up coils?
How do I go about testing the TCI? What values am I looking for (ohms?, voltage?).
What values (ohms? voltage?) should I be expecting when testing the leads from the TCI?
I checked the main fuse and ignition fuse. Both checked out. No visible corrosion; reinstalled with dialectic grease.
I am Resting battery voltage is 12.6v and at ~2200 rpm, voltage is 14.2v (measured at the battery). I am also getting 12.6v between battery and...
My suspicion is spark/electrical inasmuch as when the bike is in “faltering mode” and rpm fall below 2200 rpm, the bike acts as if the ignition...
The resting battery voltage (bike off) is 12.6v. Voltage increases to 14.2v above ~2200 rpm.
Not much of an update, rather more information which may help in the troubleshooting process: I replaced the sub-par spark plug caps to NGK’s...
As I begin to button things up, I came across a discussion on resistance at the spark plug and spark plug cap. Some bikes of this era call for a...
I thought of doing this…but then didn’t. I will put a plug and plug wrench in my tank bag when I venture out today. I agree this will be a good...
The valve clearances are within spec. I may have identified a potential issue with the spark plug caps on #2 and #3. Their design/construction was...
Okay, three good suggestions. I’ll tear into things this afternoon. Also, is there a way to test the ignition system (coil+plug wire+spark plug...
1982 750 SECA Issue: bike begins missing after 2-3 miles (5 minutes). Missing seems to get worse and within 20-30 seconds the bike will not have...
Problem solved. The fast idle condition was resolved by adjusting the pilot circuits. By opening the pilot circuits, idle smoothed out, allowing...
I appear to have resolved the hanging idle. The engine returns to idle within a second or two from 3000-3500 rpm. My issue now has moved from the...
[IMG] I have the four carburetors set as you suggested.
Excellent response. Is it normal (or acceptable) that the butterfly doesn’t completely seal the throat of the carb? My butterflies cannot be...
Okay. Can I get some advice on setting the butterflies/throttle plates? This may not be the issue, but I want to address as many possibilities...
I am using the MotionPro SyncPro which balances the four carbs. I have used the SyncPro in the past (not on this bike) with excellent results. The...
I agree with you that it seems like an air leak, my issue is the air is coming around the edges of the butterfly valves. While bench syncing the...
Thanks. More to ponder. At one point I felt the butterflies sticking but after fiddling (technical term) with the screws, they don’t seem to be...
Yes, applying pressure to the 1/2 adjustment screw seems to being the idle back in line but for the life of me I can’t seem to understand what I...
SIX TIMES! Damn, that means I have one more time to remove these things. The throttle cable appears to not be an issue inasmuch as I have the...
1982 SECA Carburetors rebuilt to include throttle plate seals Carburetors synced using MotionPro Sync tool SECA “rod” in place during sync Valves...
Don’t want to hijack your thread, but my ‘82 SECA is behaving the same way - even with new throttle shaft seals.
The shaft seals arrived quickly. Great job!
Sorry…1982. Also, I resolved the shifting issue. The solution appeared to be having the neutral dimple on the shift drum to be in the 6 o’clock...
Purchased non-running 1984 XJ750. Replaced alt chain, closed up the case, slipped the engine back into the frame, bike runs fine but would not...
My attempt to post a technical question was denied because it was “spam like”.
We’re you able to get this issue resolved? I am having the same issue and looking for a solution
We’re you able to get this issue resolved? I am having the same issue and looking for a solution.
Ah, found it in the service manual. Thanks.
1984 750 SECA I have the case split and want to ensure the oil passages (journals?) are clear before reassembling. Can you explain where the...
