hi everyone.
i have had a 1972 honda cb 750 for just over a year now.
its a good looker and quite original in that it doesnt look as if its been tinkered much.
in the time that i have owned it, i havent ridden it too much but
it felt always aquite a strong bike, but always a tad difficult to start.
lately and as a consequence of this, i decided to get to the bottom
of it and get it looked at, as the starting problem was somewhat getting worse.
the mechanic who has a good reputation, has pulled the carbies and re seated them.
he also relpaced all the rubber tubes to and from the carbies and balanced them.
fuel tank was also checked for rust which there was non of.
new spark plugs and it ran like a dream for the first 15 minutes or so whilst on the expresway back home.
i could not believe how well it ran with plenty of power...plus.
almost like new!!!!!
after about 15 minutes, i heard a little backfire but i continued home.
i didnt think much of it and garaged it. the next day i went to start and it did but then it died. started again then died.
soon, i couldnt even start it.....i took it back to the mechanic,
he checked the compression which was good. he took out the new plugs that he installed previously and replaced them with new ones
as they were fouled up already.
it started first kick....i then decided to leave the bike with him and after a week or so he called me to tell me that it might need a top end
job, which would include valve stems, maybe rings and obviously a timing chain....
this came to me as a surprise because i rode the bike and it ran like new with plenty of power to boot. besides, i could never see any smoke
uphill, or downhill with this bike since the day i bought it....
has anyone gone through this experience or does anyone have any suggestions that might give me some direction....
cheers
met
i have had a 1972 honda cb 750 for just over a year now.
its a good looker and quite original in that it doesnt look as if its been tinkered much.
in the time that i have owned it, i havent ridden it too much but
it felt always aquite a strong bike, but always a tad difficult to start.
lately and as a consequence of this, i decided to get to the bottom
of it and get it looked at, as the starting problem was somewhat getting worse.
the mechanic who has a good reputation, has pulled the carbies and re seated them.
he also relpaced all the rubber tubes to and from the carbies and balanced them.
fuel tank was also checked for rust which there was non of.
new spark plugs and it ran like a dream for the first 15 minutes or so whilst on the expresway back home.
i could not believe how well it ran with plenty of power...plus.
almost like new!!!!!
after about 15 minutes, i heard a little backfire but i continued home.
i didnt think much of it and garaged it. the next day i went to start and it did but then it died. started again then died.
soon, i couldnt even start it.....i took it back to the mechanic,
he checked the compression which was good. he took out the new plugs that he installed previously and replaced them with new ones
as they were fouled up already.
it started first kick....i then decided to leave the bike with him and after a week or so he called me to tell me that it might need a top end
job, which would include valve stems, maybe rings and obviously a timing chain....
this came to me as a surprise because i rode the bike and it ran like new with plenty of power to boot. besides, i could never see any smoke
uphill, or downhill with this bike since the day i bought it....
has anyone gone through this experience or does anyone have any suggestions that might give me some direction....
cheers
met