hydralock


Information and questions on GL1000 Goldwings (1975-1979)
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pablo63
Posts: 11
Joined: Wed Aug 31, 2016 9:58 am
Location: calgary , alberta ,canada
Motorcycle: 1976 LTD edition Honda Gold wing , 1976 Sulphur yellow Honda Gold wing , 1982 Honda cbx , 1971 Honda cb 750 x 4 , 2009 yamaha v-max

hydralock

Postby pablo63 » Tue Sep 13, 2016 10:50 pm



4 mnths ago I purchased a 1976 honda gold wing , 15,000 miles on clock , during the last four mnths I have changed the points , checked valve clearance and ignition timing ,
the bike seemed to run better after the changes but one thing that has always occured occasionally since the four mnths is some times it would hard start and eventually the starter
would not turn over the motor , although the battery was not run down , I would leave the bike for a day then come back and voila the starter would work fine and the bike would eventually start ,
the other day the same event occured but after two days the starter still would not crank the motor even with a new battery , I thought the starter was fried , so i pulled the exhaust pipe to remove the starter and there was alot of raw gasoleine in the exhaust , I then checked the starter on a bench and it worked fine , I had heard about hydrolock for my cbx so I then pulled all plugs and found the number four cylinder full of gas , I re-installed the starter and cranked the engine and raw gasoleine was displaced out the number four cylinder , I re-installed the plugs and the starter turns the motor without problem , my question is this is obviously a carb problem and was just wandering where to start looking as to what is causing this problem .
thx , paul



User avatar
spiralout
Posts: 1049
Joined: Sun Feb 17, 2013 6:41 pm
Location: Alabama
Motorcycle: 1975 GL1000 (gone)
1980 GL1100I (with '77 1000 engine)
1996 GL1500 SE

Re: hydralock

Postby spiralout » Wed Sep 14, 2016 12:22 am

Your float valve isn't sealing. Could be the valve, the seat or float hanging up. Make sure to keep the petcock turned off when it's not running.

pablo63
Posts: 11
Joined: Wed Aug 31, 2016 9:58 am
Location: calgary , alberta ,canada
Motorcycle: 1976 LTD edition Honda Gold wing , 1976 Sulphur yellow Honda Gold wing , 1982 Honda cbx , 1971 Honda cb 750 x 4 , 2009 yamaha v-max

Re: hydralock

Postby pablo63 » Wed Sep 14, 2016 8:32 am

9 times out of ten I make sure and turn off the petcock , but was wandering if this either stuck or not sealing float valve would cause the bike to hard start ,

User avatar
ekvh
Posts: 140
Joined: Thu Apr 29, 2010 9:52 am
Location: Grand Forks, ND
Motorcycle: 1977 gl1000

Re: hydralock

Postby ekvh » Wed Sep 14, 2016 2:34 pm

It can cause it to not start at all, worse it can bend a rod. Ask me how I know. If the motor stops just ahead of an intake valve opening, the cranking of the motor opens the intake, dumps in a bunch of fuel, the piston goes down, starts up, intake valve closes, piston comes up to compress the gas/air mixture, problem is-----it's all liquid----wham. If the previous cylinder in sequence fired, you have the starter motor plus one cylinder all working to smack that piston into the wall of gas. If you don't believe me, I have a nice 1200 block to sell you.

Just to add to above advice, it can also be from a leaky plenum seal or leaky carb-to-plenum seals. It's worth it to fix.

pablo63
Posts: 11
Joined: Wed Aug 31, 2016 9:58 am
Location: calgary , alberta ,canada
Motorcycle: 1976 LTD edition Honda Gold wing , 1976 Sulphur yellow Honda Gold wing , 1982 Honda cbx , 1971 Honda cb 750 x 4 , 2009 yamaha v-max

Re: hydralock

Postby pablo63 » Wed Sep 14, 2016 4:52 pm

Thanks for the advice , definitely convinced me to re-build the carbs before riding the bike again , I guess I have been lucky with not bending a con rod so far as this has happened
probably 6 times in the last four mnths and I was thinking it was the starter , when I pulled the plug on the # 4 cylinder it was competely filled with gas , I guess that float valve on the # 4 carb would be the problem , but will order a complete re-build for all carbs from Randaaks .

User avatar
spiralout
Posts: 1049
Joined: Sun Feb 17, 2013 6:41 pm
Location: Alabama
Motorcycle: 1975 GL1000 (gone)
1980 GL1100I (with '77 1000 engine)
1996 GL1500 SE

Re: hydralock

Postby spiralout » Wed Sep 14, 2016 5:27 pm

pablo63 wrote:Thanks for the advice , definitely convinced me to re-build the carbs before riding the bike again , I guess I have been lucky with not bending a con rod so far as this has happened
probably 6 times in the last four mnths and I was thinking it was the starter , when I pulled the plug on the # 4 cylinder it was competely filled with gas , I guess that float valve on the # 4 carb would be the problem , but will order a complete re-build for all carbs from Randaaks .

Good move ordering Randakk's kit. It's over priced, in my opinion, for what it is but you're not going to get better quality.
I had the same hydrolock/flooding issue a few months after overhauling my GL1000 carbs using a Barracuda brand kit from Sabre even though I used OEM needles and seats and it turned out the bowl gaskets had already shrunken so much they were fouling the floats on #s 2 & 4. It was so much fuel coming through that if I forgot the petcock, those two cylinders would hydro lock in just 3 or 4 hours.

smittyboy734
Posts: 17
Joined: Tue Apr 12, 2016 7:21 am
Location: trenton,mi.usa
Motorcycle: 1978 gl1000..owner 70 cl70 .previously owned 82 cb750k,76 cb500T ,78 kz650,71 H1500

Re: hydralock

Postby smittyboy734 » Thu Sep 15, 2016 6:32 am

i would send the carbs out to get rebuilt and only use Pistol Pete, he uses Randakk parts and when you get them back they are bolt on ready i did this last riding season and was the best 400 i ever spent

pablo63
Posts: 11
Joined: Wed Aug 31, 2016 9:58 am
Location: calgary , alberta ,canada
Motorcycle: 1976 LTD edition Honda Gold wing , 1976 Sulphur yellow Honda Gold wing , 1982 Honda cbx , 1971 Honda cb 750 x 4 , 2009 yamaha v-max

Re: hydralock

Postby pablo63 » Thu Sep 15, 2016 7:43 am

one year ago I stripped and completely re-built my 1982 cbx carbs , so I think getting the randaaks video & carb re-build kit I should be able to get it done right , atleast hoping to , I have heard of pistol pete ,was going to send my speedo guage to get fixed but was able to buy a second hand guage .

smittyboy734
Posts: 17
Joined: Tue Apr 12, 2016 7:21 am
Location: trenton,mi.usa
Motorcycle: 1978 gl1000..owner 70 cl70 .previously owned 82 cb750k,76 cb500T ,78 kz650,71 H1500

Re: hydralock

Postby smittyboy734 » Fri Sep 16, 2016 4:58 pm

yes i have rebuilt my 750 carbs and my 500 carbs and was ok with the results but the rebuild from pistol pete was one of the best investments i did when i rebuilt my 78 gl last year considering the randakk kit in itself is 120.00 to purchase, so for me remove the set send them out and when they come back they are synced and you just install ,good luck




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