ok...89 tourglide...had the heads done and jugs bored for new pistons...did the cam change to a ev3....bike wont start. im getting spark, new plugs, everything is turning, pistons going up and down....checked timing (I think, cause the service manual doesn't tell u exactly where it goes) the v is straddling the pie at around 7 oclock....
its back firing through the carb a lot, and once in a while it has a backfire that sounds like a shotgun
I sprayed some starting fluid through the carb and it caught on fire inside the carb....the carb also is blowing out instead of sucking it...I stuffed a rag in the front of the carb to choke the hell out of it and it blew it out, not sure if that's normal....


any ideas.........

 

Pull the nose cone and check the Cam timing. Don't sorry about tdc just make sure the Cam, crank and breather gear line up the way they are set in the manual. Are you running single or dual fire.? If single swap the wires... If dual fire it doesn't matter..

Are you using OEM pushrods? If not do you have the valves adjusted too tight?

 

Cam marks r def right. I did that earlier while waiting for the top end. Triple checked them before I buttoned them up.....but u might have just hit the nail on the head!!! I'm running single fire and just pulled the wires not even thinking about which way they went!!! Oh man fingers crossed. I'll be back! Lol

 

Goose eggs. It's backfiring through the carb a lot and making shotgun blast backfires through the exhaust. I have the v on the timing plate at the lowest to six o'clock wedge I didn't do those things before I switched the plug wires so I'm going forward inches! Lol. The carb is also dumping out fuel through the air cleaner side.

 

Sounds like you're 180 degrees out...Is the rotor cup (behind the pickup) on right?

 

I'll check. I thought the cup had a notch in it

 

The V should line up within the vicinity of the notch on the backing plate around 7 o'clock.

 

The higher notch? I

 

Well. I tore I apart. All the marks r lined up with the cam. It's on the same lobe as the stock cam. Now I'm really stumped.

 

What I'm understanding is that when you pulled the cam cover for the engine work, you did not scribe a reference mark to align the sensor plate for re-installation.

Thinking out loud here: So, you checked plugs wires are not crossed; PRs are adjusted corrected; gear (cam, pinion, breather timed correctly), and rotor cup is sitting correctly on end of the cam. Backfire can happen when the cup is not installed correctly.

Let's say all this is correct, and you need to get the OEM cam sensor plate back on in order to at least get the bike started. I had a friend who tried this and was able to get his bike started.

Place your sensor plate into the nose cone with the two screws (stand-offs). Rotate the sensor plate clockwise until the plate is stopped by the right screw. Now rotate the sensor plate slowly counter-clockwise watching the right stand-off screw. As soon as you see 1/8" gap between screw and sensor plate slot, lock it down. (better in picture).

I hope this helps. Good luck.