Dmac68 Posted March 3, 2020 Author Report Posted March 3, 2020 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 Quote
Dmac68 Posted March 3, 2020 Author Report Posted March 3, 2020 I believe it was fuel but not positive Sent from my iPhone using Tapatalk Quote
Dmac68 Posted March 10, 2020 Author Report Posted March 10, 2020 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 Quote
Dmac68 Posted March 11, 2020 Author Report Posted March 11, 2020 Your good. 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 Quote
SKEETER Posted March 11, 2020 Report Posted March 11, 2020 Back out? Sounds like a detonation issue. Quote
Dmac68 Posted March 11, 2020 Author Report Posted March 11, 2020 What could be causing that ? Sent from my iPhone using Tapatalk Quote
alcoholbanshee Posted March 11, 2020 Report Posted March 11, 2020 Not enough fuel, not high enough octane fuel, too much timing, poor dome design among others... Quote
Dmac68 Posted March 11, 2020 Author Report Posted March 11, 2020 Not enough fuel, not high enough octane fuel, too much timing, poor dome design among others... 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 Quote
alcoholbanshee Posted March 11, 2020 Report Posted March 11, 2020 I would run at least 93 octane with that compression. Do you know what your timing is. That would be an important number to know Quote
Dmac68 Posted March 11, 2020 Author Report Posted March 11, 2020 I would run at least 93 octane with that compression. Do you know what your timing is. That would be an important number to knowI do not. Is there a way I can check that ? Sent from my iPhone using Tapatalk Quote
SKEETER Posted March 11, 2020 Report Posted March 11, 2020 Take your stator cover off. Take pic of timing plate. Quote
ClaudeMachining Posted March 11, 2020 Report Posted March 11, 2020 A micrometer with extendable measuring probe , find tdc, zero it out, go to bdc, and measure. The cheap compression testers can read false. Buy the best you can afford. Orileys has 1 for 46$ I've tested with same results as a snap on. First pic: MicrometerSecond pic: Electronic Caliper.You need a Caliper, not a micrometer.Envoyé de mon SM-G965W en utilisant Tapatalk Quote
ClaudeMachining Posted March 11, 2020 Report Posted March 11, 2020 If you want to be sure, do a UCCR test. It's easy, all you need is a syringe of about 50cc. Static compression wont tell everything.Do a squish test too. https://youtu.be/ajCE1HRWaAE Envoyé de mon SM-G965W en utilisant Tapatalk Quote
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