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Yup, exactly what I’ve learned. Why I chose an early 70s bike with four carbs to be my first to try to rebuild I’ll never know. Probably should have had a running one next to it to see how it worked first. Oh well! It’s all good now

It does kill the engine if the engine is warm and I put the choke on. My problem is it doesn’t act like a more modern choke in that it won’t start or idle choked when cold, but that seems to be a common problem with very early carbs. I verified no light was getting through at all when they’re...

Plugs all look good and it idles great! Choke still doesn’t help but it warms up quickly. I’m not worried about the tappet adjustment after seeing those numbers. Thanks everyone.

So keeping in mind the fact that they don’t move in a straight line, adding a curve to that measurement would increase it just slightly, but the fact that I’m using a flat edge to measure something that starts with one angle and ends with another (then barely reducing the movement), it should be...

Okay tried a flat tip (duh.), got 0.315 inlet and 0.312 outlet. I don’t know if the rocker arm geometry ends up reducing the lift at the tappets or increasing them, but these look really close to stock

I’ll check them again tomorrow night after I haven’t been working in the garage all day

Just got 0.355” on the inlet side and 0.311” on the outlet. Getting the dial indicator set perfectly in line is harder than I thought and the slot for a flathead screwdriver on the top of the tappet makes it worse.

Sorry, it wasn’t a float height problem. The fuel line to 1&2 went uphill. Once I routed it correctly I see all fuel levels even and at the correct height. Dealing with carb boot leaks at the head now. New boots, 46 and 44mm clamps don’t seal it well enough. I can’t even crank the 44mm all the...

Alright, it’ll hold a steady idle and sounds good at 1100. Still can’t use the choke to start or warm it up or it sounds like it’s flooding, all four plugs are a very light tan so bumping the idle jets down to 38s and trying the choke doesn’t seem like a great idea. Did the clear tube fuel...

And I’ll just say, it’s true amc your responses weren’t exactly inviting for a first time poster. The “you’re wrong and if you don’t listen to me you’re also stupid” sort of stuff isn’t what people are looking for when they’re inexperienced with these bikes and need help.

Update: relay has been installed so I’ve got battery voltage at the coils. Float valves will arrive today so I’ll set those first and see how it runs, then check the lift with the dial indicator.

Thanks a lot for all that. I was able to adjust things to get 12.3 at the coil posts with 12.8 at the battery. Drops to 11.8 with the lights on. I pulled the carbs and the jets are clear, they’re bench synced. I realized I set the floats while the carbs were flat so they’re all set too high...

Ah, sorry, I meant I was seeing those numbers as stock online, haven’t checked mine yet

Looking at the likely suspects as far as popular cams in a run of the mill 836, at manual settings I could be .003 and .002 off. Maybe .002 and .001 off. The lift on some of these cams appears to be as much as .03 higher than the stock numbers I found, which would be real easy to see... let’s...

I’ve been working on this thing for four months pretty non stopped and I think build exhaustion hit me for a second. At the very least I’ll try using a dial indicator to measure the lift. Do you have the stock numbers? I see .315 intake and .313 exhaust.

The borescope I’ve got takes pretty good quality pics... or I leave it as is, give it to my buddy and tell him he might have a valve/cam/rocker job in his future. I suppose if I can get it to idle well set to stock clearances I probably am fine.

Got it, thanks for the reply. Would I be able to drop a borescope in a tappet cover to get a visual on the cam? Would seeing it even help identify it or do I need to be able to take measurements on it? Alternatively, I could lift the top cover enough to see what’s inside using a camera without...

Stock is .002/.003, while all of cycle x performance cams list .004 across the board... that’s a pretty big difference. Craaaap.

I guess I should add that I already adjusted the valves to manual specs... have I put the motor in danger if I don’t know how far they may have gone with this supposed 836?

Okay, I intend to do a check at WOT in second and cutting it coming up the hill to my house after hauling ass for a while. Just wanted to figure the idle out before moving on to the main jets. From the reading I’ve done a plug chop at idle should still indicate if the pilot jets are doing their...

Amc, I misspoke. Understood on the meaning of on vs in, thanks. Bottom line, all four plugs were in, 1&4 wires were connected while 2&3 were not. It idled without popping or missing on 1&4 with all four under compression, and the compression test showed all cylinders were good. If any of that...

No leaks anywhere on the bike. Coil voltage test: 13.2 at the battery 12.8 at black and white wire in headlight 12 at black and white wire going to coils 11.8 at coil post 12 at black and white wire in headlight with lights on 11.1 at black and white wire going to coils with lights on 11.1 at...

The plugs were in 2&3 but the wires not connected

I’ll restate it - it idled on just 1&4 at 1100 without popping or missing. I know that doesn’t mean everything is great in any of the four cylinders just giving some info in case it matters. If it doesn’t that doesn’t bother me, better for me to give too much info than not enough. It was an...

I’ll recheck the compression and the voltage at the coils tonight. Judging by the state of the bike and everything around this guy’s garage, I doubt he went to the expense of an engine with a new cam. But who knows. He said he bought the engine from some guy in Pennsylvania that only works on...

Sorry sorry sorry I keep forgetting things. 1&2 fouled, 3&4 show rich but not as bad as 1&2.

...D8EA plugs in it now. Fouled both D8EA and DP7EA-9s so far.

Oh I did try 38 pilots but no change. That was before the sync though so I can try again I’d recommended. It’s supposed to have an 836 kit in it but I really have no idea. I just know it had some left in it for sure at 105 mph and that was a pretty windy day.

I’ve got a 71 (engine is from a 75 according to the case number) that’s fouling plugs. It doesn’t happen if I just let it idle in between checking adjustments or if I pop around town for a bit, can’t nail down when exactly it’s happening. It also won’t start or run at all with the choke on (yes...