1978 750k

[Dirty]

Thanks Shultz. Thats what i was wondering about. They were installed backwards by po. They wont seal and it mars up head if installed backwards.

[shultz_1978]

Glad to help.

[Lucky 1]

If it was me I would take the front end off and the rear wheel and then lay the engine and frame on its right side on a blanket and lift the frame off.

Then rebuild the engine and clean and paint the frame.

By the end of the winter you will have a bike with NO problems.
Just think how much a NEW 750 would cost these days.

See what i mean?

[jellard]

roger that. i have the back wheel off, the chain and the swing arm off. lots of gunk and stuff in there to clean. Having trouble with screws being stripped. there is only a few on the engine that i can even get loose. There is still a screw on the #4 carb that i cant get off the lifter assembly so I still have that to deal with as well. in to deep to pull out now, but wondering if its feasible that there is no problem with the engine and maybe ill be ok without pulling it. i will end up doing it though im sure. hate to get it all together only to realise there is a valve problem or something.  ughh

[jellard]

anyone in the san antonio area? how bout you fix my bike and ill help and pay for the beer? lol

[Lucky 1]

You MUST have a hand held impact driver to remove the engine screws.
Make sure you use the correct size bit.
Many of the screws are #2 philips but the screws on the valve cover are #3 phillips.
That is the secret to getting them out easily.
IMPACT DRIVER and Correct size phillips bit.
ALSO: Tap each screw with a small hammer before loosening.
Have someone show you how to use that impact driver. (About $12.00)

You must put some downward twisting force on the screw,
 before hitting the impact driver with a hammer.

That screw on the lifter carb cover.... Just use a small vice grip to remove that screw and order all new screws for those covers. Many years of buggering on those.

[Lucky 1]

Get rid of that massive heavy #630 chain and sprockets and convert to #530 chain and sprockets before that chain goes through the engine case.

[jellard]

i have the chain off. its so gunked and nasty that i am going to be replacing it anyway. ill take your advice on this for sure thanks Lucky

[jellard]

i will pick up an impact driver. will that help me with the screws ive already stripped? i have a #2 and #3 but just hand drivers.  i have vice grips. im in no hurry to get thru this project, i dont have an endorsement for motorcycles yet on my license anyway. this is my first bike. i want to do this right and have a safe and reliable ride

[shultz_1978]

You need a impack driver that you wack with a hammer. Some one one here put up a picture of one but I don't remember who.

If you need to know what they look like I can post a picture when I get off work.

[jellard]

i did see a picture of that driver on one of these threads. thanks! ill ask a buddy to see if he has one or ill go pick one up.

[jellard]

 like this one right?

[jellard]

here is a couple more pics. had to use my POS camera phone, the digi is in the car with the gf at work  front brake  rear wheel   parts piling up  and my work bench

[jellard]

so next on the list is to swing by my buddies and grab a couple jacks so i can get the front wheel/forks off of here. need to order carb gaskets/repair kit.

[jellard]

whats your take on the air filters that clip onto the carbs instead of the airbox? kind of like the way that looked i am pretty sure ive seen some of your bikes set up that way?

[Lucky 1]

You have enough problems to overcome right now just use the stock air box for now.

Unless you want more problems.

[Lucky 1]

Go buy it for yourself.  Do not borrow it.

Other men do not really like lending tools. They resent it
down deep because tools can get damaged and worn or lost.

Every man needs a set of tools.
Young boys have no tools but men have tools and toolboxes.
You will use those tools your entire life.

I still have all of my Craftsman tools I bought when I was 16 years of age.
I did not know at that time how much they would help me during my life.

[jellard]

you're right, i will go buy the impact driver. stock air box is in good shape. i was just curious. indeed, i do have a lot to overcome at this point.

[Lucky 1]

You are wise to take some advice right now.
A person that is not so smart would blow off the advice.


Later on you can make simple changes after you know more.

[Lucky 1]

BTW I can see that you have that shaft out of the carbs.
If the bushing in the backing plate broke I have a source for PTFE bushings that fit.

There is a pin holding the shaft in but it fortunatly is so corroded it just breaks off.

Aluminum backing plate,bronze bushing, and steel shaft. The worst combo of metals from a corrosion standpoint.

With PTFE bushing then you have aluminum backing plate with steel shaft separated with a plastic bushing. Mush better. That PTFE can take some heat too.
It is the same plastic your frying pans have on them.

BTW...Only tap on one end of that shaft!!  Otherwise it will not go back in.
When you tap on he shaft it spreads out. Mushrooms out.