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- Compressions - Honda CB750 Forum
The DOHC Garage (1979-1983) Compressions Thread CB750 Guru Messages 3,476 Reaction score 56 Points 36 Location Fort Worth TX Dec 30, 2020 they lend toward low compression on the twin cam engines Reply Reactions: Rampton O oldchuffer CB750 Member Messages 6 Reaction score 1 Points 3
- Compression Test woes | Honda CB750 Forum
Hi 1980 CB750 Custom Just did compression test and was surprised by the numbers Cyl 1 = 95 psi Cyl 2 = 100 psi Cyl 3 = 50 psi Cyl 4 = 70 psi How can these be this low and bike starts and drives? Valve clearance must not have been done by previous owner and if I understand right, the
- Compression test - Honda CB750 Forum
The DOHC Garage (1979-1983) Compression test Thread CB750 Guru Messages 3,476 Reaction score 56 Points 36 Location Fort Worth TX low compression, what to do? keatons; Feb 3, 2025; The DOHC Garage (1979-1983) Replies 8 Views 653 Feb 3, 2025 keatons K M Dump your advice here! 81 cb750f
- compression test. - Honda CB750 Forum
The DOHC Garage (1979-1983) compression test Thread CB750 New member Messages 3 Reaction score 0 Points 1 Location Caaaaanada Jun 24, 2015 #2 low compression, what to do? keatons; Feb 3, 2025; The DOHC Garage (1979-1983) Replies 8 Views 364 Feb 3, 2025 keatons K T Compression Test woes
- Very low compression - non running | Honda CB750 Forum
Oh, it may well crank and run just not well Will wet the plugs out quick to foul if compression is truly low Below 100 psi will give trouble forever and no power that low Very odd though for all 4 to be that low Usually 1 or 2 only Hard to find a good sealing compression gauge on that small a plug
- Diagnosing CB 750k issues (1979) - Honda CB750 Forum
Like said, low compression makes everybody go after the carbs because they are CV type and they quit lifting the slides when the engine draw dies from lack of compression, which ties directly into valves set correctly and nobody ever does that either
- 1979 CB750k - Valve Clearance Clarification | Honda CB750 Forum
1979 CB750k - Valve Clearance Clarification Thread starter Piczker08; Start date Nov 19, 2024; P Piczker08 CB750 Member Messages 17 Reaction score as part of my winter work and im getting pretty low compression on the cylinders Like 120,60,30,40 Can it be related to loose valves? Oil in cylinders doesn't improve numbers Reply K
- 82 CB750K cylinder #1 plug sooting | Honda CB750 Forum
It was a challenge to find it but the low compression psi in the cylinder would of course effect everything else- Not enough vacuum to draw air in properly and therefore I had a wet sooty plug in number one when everything else was white and clean 1979 CB750K Cyl #3 Plug fouled, black soot bobwilson67; May 20, 2023; The DOHC Garage (1979
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