Recent content by Srxspec

Heat the block up lightly, it's a tight fit.

When the starter was going bad, the engine "kicked back" while the starter was engaged. Starter spinning one way and engine trying to go the other way = sheared flywheel key.

It's possible when it backfired that it sheared the flywheel key and the flywheel has turned on the crankshaft. This would lead to the timing marks not lining up in the window of the flywheel cover and also would lead to the timing (ignition) being out of time because the timing pickup is off...

Views = $$$

Tapp items will be here on Monday, hoping to be on the dyno be the end of the week (with hopefully a little cooler weather).

I will hopefully have a Tapp primary, 11" secondary and 11.4" secondary soon to try. My plan is to compare them to the OEM Yamaha clutches on a 2025 Sidewinder SRX with PEFI Stage 4 tune first. Then I will run them on a 2024 Thundercat with MC Xpress Stage 3 turbo kit (new turbo, larger...

One of these years I'm going to make it back to Hay Days and will have to attend the WOW event one of these years!

Unplug it at the coils & crank trigger plug-in.

You have spark but it's not firing under load, again, take the ignition module off and try it. I'm gonna guess you'll find it's in your ignition module that is faulty. It has spark when there's no cylinder pressure, but when there's cylinder pressure it can't fire the fuel, which is why you...

Unplug the ignition module and see if the spark comes back. I'm guessing you have a faulty ignition module.

Change the chain, check the top gear bushing in the chaincase. Check the bearings on the jackshaft & driveshaft and check the bushings in the clutches.

All depends on your compression ratio & fuel octane you are willing or can use.

MCXpress kits use stock ignition timing still.

If the flywheel is positioned correctly and cams are facing the correct direction (like the service manual tells you). You can not be 180 degrees out. Pull the valve cover and check all your timing marks and then also check all your valve clearances that you don't have a valve shim that has...

@Dave Forsyth send me a secondary setup for a Yamaha shaft, I'll test it against my best stock Yamaha secondary setup.