So you have leakage in cylinder 1. To clarify
Put each cylinder at TDC, and GENTLY apply air while the crank is held in place. Be careful. The air pressure can spin the wrench and hurt you. Do the test dry first, record numbers, THEN wet and record those numbers When air is SLOWLY added at TDC, if there's a leak you will hear the hiss: LISTENING fof the hiss is the AIRCRAFT LEAKDOWN TEST Carb side is inlet valves are loose. Tailpipe is exhaust valves are going or gone. Oil inlet is rings are going or gone. With all of that out of the way, you can now chase fuel, by cleaning out the carbs (no need to separate them) And after that, verify your plug wires and plug boots are ohm meter perfect On Sat, Sep 4, 2021 at 11:34 AM 'AGL' via Nighthawk Motorcycle Lovers! < [email protected]> wrote: > Okay just finished doing the leak down test at 90 psi hopefully I did > everything correctly cylinder #1 8-10 psi loss #2 2-3 psi #3 1-2 psi #4 2 > psi. I'm guessing this is acceptable so my culprit must be the carburetor? > Maybe this time I will separate the carbs and thoroughly clean them. > On Wednesday, September 1, 2021 at 4:51:33 PM UTC-7 AGL wrote: > >> I got the fuel filter taken off, but I haven't ridden it yet been a >> little busy with work. I just got the leakdown test kit this morning so >> I'll have everything ready to test it this weekend. >> On Wednesday, September 1, 2021 at 6:42:39 AM UTC-7 [email protected] >> wrote: >> >>> You have great compression. Problem eliminated, now you chase the other >>> stuff (and become the local guy to loan out his compression tester) >>> >>> Now you want to do a leakdown test. The fittings from the compression >>> tester will be needed. >>> >>> Have you downloaded the factory service manual from the forum? >>> >>> >>> On Wed, Sep 1, 2021 at 8:10 AM 'AGL' via Nighthawk Motorcycle Lovers! < >>> [email protected]> wrote: >>> >>>> >>>> Alright received the compression tester today here are the results >>>> cylinder #1 140-145 #2 115-120 #3 135-140 #4 140-145. I added some oil to >>>> cylinder #2 and the psi jumped 150+ guess I've got worn out rings on #2? >>>> Well I'm in the market for a new bike not really in the mood to rip apart a >>>> motorcycle engine, don't even know where to begin. >>>> On Tuesday, August 24, 2021 at 8:40:14 PM UTC-7 AGL wrote: >>>> >>>>> Yeah, that could be possible since I added a fuel filter several >>>>> months ago. I'll try it out tomorrow and let you know if it >>>>> works thanks for the suggestion. >>>>> On Sunday, August 22, 2021 at 2:56:37 PM UTC-7 [email protected] wrote: >>>>> >>>>>> +1 on checking the in tank filter and petcock filter. My 650 came >>>>>> with a cheap inline filter the PO had installed and I had the same >>>>>> problem >>>>>> with it cutting out after a while on the freeway. Pull over and let it >>>>>> sit >>>>>> and it would start and ride again. Anything restricting fuel flow will >>>>>> cause this. >>>>>> >>>>>> On Sun, Aug 22, 2021, 08:58 'AGL' via Nighthawk Motorcycle Lovers! < >>>>>> [email protected]> wrote: >>>>>> >>>>>>> Just ordered a leakdown and compression tester kit I'll let you know >>>>>>> the results when I get my hands on it thanks for the advice >>>>>>> On Saturday, August 21, 2021 at 8:48:37 PM UTC-7 [email protected] >>>>>>> wrote: >>>>>>> >>>>>>>> Google aviation leakdown test. >>>>>>>> >>>>>>>> It means you need to send low psi compressed air into the cylinder, >>>>>>>> and listen for a leak. >>>>>>>> >>>>>>>> Eliminate valves being open, and rings gone bad. >>>>>>>> >>>>>>>> Do the test dry, or with the cylinders not oily, and then wet, to >>>>>>>> find out if it is a leak down from the rings. >>>>>>>> >>>>>>>> On Sun, Aug 22, 2021 at 8:46 AM 'AGL' via Nighthawk Motorcycle >>>>>>>> Lovers! <[email protected]> wrote: >>>>>>>> >>>>>>>>> but I've had these issues since the beginning beside the new >>>>>>>>> bogging down on the highway problem >>>>>>>>> >>>>>>>>> On Saturday, August 21, 2021 at 5:44:54 PM UTC-7 AGL wrote: >>>>>>>>> >>>>>>>>>> Vacuum line is fine forgot to mention I did replace the petcock >>>>>>>>>> last week due to the original not flowing >>>>>>>>>> properly >>>>>>>>>> On Saturday, August 21, 2021 at 5:42:23 PM UTC-7 >>>>>>>>>> [email protected] wrote: >>>>>>>>>> >>>>>>>>>>> Check the vacuum line from carb to petcock and gas cap air vent >>>>>>>>>>> >>>>>>>>>>> On Sat, Aug 21, 2021 at 8:32 PM 'AGL' via Nighthawk Motorcycle >>>>>>>>>>> Lovers! <[email protected]> wrote: >>>>>>>>>>> >>>>>>>>>>>> The bike sat for 20 something years with 14,000 miles before I >>>>>>>>>>>> got ahold of it I cleaned the carbs twice but didn't separate >>>>>>>>>>>> them. Now it >>>>>>>>>>>> runs decent smells a little rich at times, but the spark plugs >>>>>>>>>>>> don't >>>>>>>>>>>> indicate it. Sometimes when its colder, I need to give it a little >>>>>>>>>>>> throttle >>>>>>>>>>>> to even get it started then I'll add some choke until it warms up >>>>>>>>>>>> this is >>>>>>>>>>>> when it usually smells rich. Also, last night when I was on the >>>>>>>>>>>> highway >>>>>>>>>>>> doing 70-80 mph it bogged down and died 3 times but started right >>>>>>>>>>>> back up >>>>>>>>>>>> on the side of the road. This is the first time I've had any >>>>>>>>>>>> issues on the >>>>>>>>>>>> highway as I've put about 2000 miles on it so far. >>>>>>>>>>>> >>>>>>>>>>>> -- >>>>>>>>>>>> You received this message because you are subscribed to the >>>>>>>>>>>> Google Groups "Nighthawk Motorcycle Lovers!" group. >>>>>>>>>>>> To unsubscribe from this group and stop receiving emails from >>>>>>>>>>>> it, send an email to [email protected]. >>>>>>>>>>>> To view this discussion on the web visit >>>>>>>>>>>> https://groups.google.com/d/msgid/nighthawk_lovers/e0ae290b-ee80-4642-b897-798cc19504b9n%40googlegroups.com >>>>>>>>>>>> <https://groups.google.com/d/msgid/nighthawk_lovers/e0ae290b-ee80-4642-b897-798cc19504b9n%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>>>>>>>>> . >>>>>>>>>>>> >>>>>>>>>>> -- >>>>>>>>> You received this message because you are subscribed to the Google >>>>>>>>> Groups "Nighthawk Motorcycle Lovers!" group. >>>>>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>>>>> send an email to [email protected]. >>>>>>>>> >>>>>>>> To view this discussion on the web visit >>>>>>>>> https://groups.google.com/d/msgid/nighthawk_lovers/ac3e728c-24bf-4111-83e0-9a60bc282c7fn%40googlegroups.com >>>>>>>>> <https://groups.google.com/d/msgid/nighthawk_lovers/ac3e728c-24bf-4111-83e0-9a60bc282c7fn%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>>>>>> . >>>>>>>>> >>>>>>>> -- >>>>>>> You received this message because you are subscribed to the Google >>>>>>> Groups "Nighthawk Motorcycle Lovers!" group. >>>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>>> send an email to [email protected]. >>>>>>> >>>>>> To view this discussion on the web visit >>>>>>> https://groups.google.com/d/msgid/nighthawk_lovers/85b43545-71ac-4b8f-8f09-a48eb4c95a8an%40googlegroups.com >>>>>>> <https://groups.google.com/d/msgid/nighthawk_lovers/85b43545-71ac-4b8f-8f09-a48eb4c95a8an%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>>>> . >>>>>>> >>>>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "Nighthawk Motorcycle Lovers!" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to [email protected]. >>>> >>> To view this discussion on the web visit >>>> https://groups.google.com/d/msgid/nighthawk_lovers/184345f1-e298-461c-ab1a-0fcec73e8157n%40googlegroups.com >>>> <https://groups.google.com/d/msgid/nighthawk_lovers/184345f1-e298-461c-ab1a-0fcec73e8157n%40googlegroups.com?utm_medium=email&utm_source=footer> >>>> . >>>> >>> -- > You received this message because you are subscribed to the Google Groups > "Nighthawk Motorcycle Lovers!" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/nighthawk_lovers/6f79f76f-669f-4dd3-9acb-0550357d2cc4n%40googlegroups.com > <https://groups.google.com/d/msgid/nighthawk_lovers/6f79f76f-669f-4dd3-9acb-0550357d2cc4n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. 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