s_alt
New member
Hello all,
Been awhile since Ive been on but ran into an issue after a complete rebuild of my bike.
Its a 1981 R100T current milage is unknown but the gear box and cylinder walls and piston ring gaps all looks exceptional so I don't think it has too many miles. Either way, before I took it apart it was all dialed in as far as the carbs go and was running really nice except for the noisy timing chain and clutch slipping.
I recently took apart my bike so I can replace the clutch system, timing chain and guides, oil seals, gaskets the whole shebang. Repainted the engine, frame.
just a much needed deep deep clean on the whole thing.
Tried starting it up today and got it to start but noticed some weird things happening when I would pull on the throttle.
First of all when Im using the timing light, I cant even see the z mark. Which is concerning. I checked my timing canister and its fully retarded. If I advance it at all it starts to putter and back fire as if its about to stall.
I thought Maybe I had the coils swapped but tried them both ways and one definitely seemed to work better than the other. I think it was the double black wire on the right one and the green on the left coil. Coils are brand new Btw.
I can get it to idle fine but as soon as I pull that throttle it wants to stall.
things to note. When I attached my carbtune it wasn't giving me any readings which makes me think it could be a carb issue though it seems weird to me since I just rebuilt them about a year ago and they were dialed in perfectly when i took them off the bike and are hardly ridden.
My friend seems to think I installed my new timing chain improperly since the timing canister is fully retarded and im still not seeing the z mark when at idle.
I made damn sure that indent on the cam shaft sprocket was at the top and my flywheel was showing me top dead and locked in place.
Obviously anything is possible but maybe the crankshaft sprocket moved a tooth? again i'm not sure and feel like I was very careful when replacing those parts.
any insight or help would be much appreciated
Been awhile since Ive been on but ran into an issue after a complete rebuild of my bike.
Its a 1981 R100T current milage is unknown but the gear box and cylinder walls and piston ring gaps all looks exceptional so I don't think it has too many miles. Either way, before I took it apart it was all dialed in as far as the carbs go and was running really nice except for the noisy timing chain and clutch slipping.
I recently took apart my bike so I can replace the clutch system, timing chain and guides, oil seals, gaskets the whole shebang. Repainted the engine, frame.
just a much needed deep deep clean on the whole thing.
Tried starting it up today and got it to start but noticed some weird things happening when I would pull on the throttle.
First of all when Im using the timing light, I cant even see the z mark. Which is concerning. I checked my timing canister and its fully retarded. If I advance it at all it starts to putter and back fire as if its about to stall.
I thought Maybe I had the coils swapped but tried them both ways and one definitely seemed to work better than the other. I think it was the double black wire on the right one and the green on the left coil. Coils are brand new Btw.
I can get it to idle fine but as soon as I pull that throttle it wants to stall.
things to note. When I attached my carbtune it wasn't giving me any readings which makes me think it could be a carb issue though it seems weird to me since I just rebuilt them about a year ago and they were dialed in perfectly when i took them off the bike and are hardly ridden.
My friend seems to think I installed my new timing chain improperly since the timing canister is fully retarded and im still not seeing the z mark when at idle.
I made damn sure that indent on the cam shaft sprocket was at the top and my flywheel was showing me top dead and locked in place.
Obviously anything is possible but maybe the crankshaft sprocket moved a tooth? again i'm not sure and feel like I was very careful when replacing those parts.
any insight or help would be much appreciated