Dmac68

Thank you for the info ! What do you mean by 9 range plug ? Do you have a part number you would recommend ? Also what fuel ratio / mix would you suggest trying ? I will look up the test and get that done soon ! Sent from my iPhone using Tapatalk

91 octane and yes it’s a trinity cool head with trinity domes. how do I perform the squish test with the engine on the bike ? Sent from my iPhone using Tapatalk

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I pulled the stator cover off but you can’t really see the timing plate very well. Do I need to pull the flywheel ? Sent from my iPhone using Tapatalk

I do not. Is there a way I can check that ? Sent from my iPhone using Tapatalk

Thank you ! It’s a 2 into 1 carb setup and I am just running normal fuel with Klotz . What are your recommendations for this setup fuel mix wise ? Sent from my iPhone using Tapatalk

What could be causing that ? Sent from my iPhone using Tapatalk

Compression wise ? I also noticed the spark plugs bad out when riding. The left is worse than the right . Would that be related ? Sent from my iPhone using Tapatalk

Okay I got another compression gauge and it was a huge difference the photos are attached. I also forgot to add I have black fluid coming from the exhaust. Raw fuel/oil I’m guessing ? Sent from my iPhone using Tapatalk

I believe it was fuel but not positive Sent from my iPhone using Tapatalk

I had that gauge laying around and figured I probably shouldn’t trust it. I will get a better one tomorrow and check again. I did notice the left hand side cylinder looked wet vs. right side being dry when I checking this stuff. What could be causing that? Head gasket leak ? Sent from my iPhone using Tapatalk

Okay I took measurements and compression. I believe it is stock stroke. I measured a few times and all measurements were not exact but close to 54.00 mm . The compression photos are attached. I know this is low but what could be the issue? The bike has maybe 2 hours of run time on the fresh cylinders/pistons/rings. Sent from my iPhone using Tapatalk

What spark plug tester would you guys recommend ? Also how do I take the measurement ? Do I stick something down the hole and measure top dead center and at bottom ? Sent from my iPhone using Tapatalk

Guys I have not checked compression. What is the best way to get an accurate reading ? Use a gauge and just kick it over ? Also is there a good way to find out what stroke the crank is without pulling it apart ? I never had the bottom end apart . Thanks for all the support! Sent from my iPhone using Tapatalk

It has a trinity IV head on it (17 mm domes ). It was bored to 69.45 when I took it apart and is now at 70mm. The porting was like this when I got it and has hot rods (CKJ158). I am not sure if it’s a stock crank or not. All I did was a top end and put it back together so any help/suggestions on what I have or if I need to change something or run a race fuel would be greatly appreciated . Attached a few photos of the parts /porting Sent from my iPhone using Tapatalk