Fabricating kick or rope start for 3cyl D722 etc with CVT

[coachgeo]

for a future addition... if possible would like to put aux. kick or pull start on my D722 with CVT. Guess would need to create some sort of Decompression lever. Guess that though is a second topic. So what ideas are out there for doing this on the fan side of the crank, assuming this is only place to do it.

[Tetronator]

I take it your fan side still looks like this:


Some things that came to my mind are:

Small notch in the pulley wheel which accepts a length of rope?

There are other pulleys which have 3 bolt holes where you can attach a larger diameter wheel to hold the rope.


Big old socket wrench on that bolt and kick it?

[klondikekid]

Maybe, bolt another v-belt pulley on the end of crank, and mount a starter motor, like a auto alternator would be mounted, but leave the adjusting bolt loose, so it can pivot, so you can push the starter / belt tight with your foot, make a peg for your foot to push on, put on/off on a switch on the handle bar. maybe a starter from a garden tractor? Just a thought.

[coachgeo]

Maybe, bolt another v-belt pulley on the end of crank, and mount a starter motor, like a auto alternator would be mounted, but leave the adjusting bolt loose, so it can pivot, so you can push the starter / belt tight with your foot, make a peg for your foot to push on, put on/off on a switch on the handle bar. maybe a starter from a garden tractor? Just a thought.

For your suggestion one could use a starter/generator. These can act as a starter AND a generator using a belt as you suggest. Considered that for weight savings so I could eliminate the alt.... but then discovered they are very very heavy and probably would not save weight. But for this situation I have an electric start and a CVT. Wanting a back up for dead/low battery situations and one can not pushstart a CVT tranny bike unless there is a way to lock the belt tight for this. Either way still need a compression release to get the engine spinning fast enough first

[Tetronator]

I managed too pull start this mean machine at the Hamm treffen this year without the decompression switch...

[coachgeo]

I managed too pull start this mean machine at the Hamm treffen this year without the decompression switch...

2cyl or 3cyl? Glow plugs? What was the ambient temp at the time? Was engine cold are still warm, or hot?

[Tetronator]

1 Cyl, No glow plugs, reasonable temprature, cold engine.

[coachgeo]

1 Cyl, No glow plugs, reasonable temprature, cold engine.

that makes since. Have pull started my 1cyl gen set many times. 3cyl??? not so sure about that with out decompression lever though

[Tetronator]

Oh, can't you just get one cyl going and the rest will follow due to the first one firing? I might be wrong about this but you can kickstart multicyl bikes, right? So why not pullstart?

[coachgeo]

Oh, can't you just get one cyl going and the rest will follow due to the first one firing? I might be wrong about this but you can kickstart multicyl bikes, right? So why not pullstart?

Compression on petrol bikes is less than diesel. In the past someone here; if I recall right, said they had kick started their 3cyl diesel bike. don't recall whom

the must weigh more than my buck 50 arse lol: My Yamaha XT 550 single cylinder has a decompression lever but only can be activated by kick starting. Found out you can't even push start it. The compression so high the back tire will lock up on pavement when you release the clutch going down a steep drive.

[gearhead1951]

"rear wheel skids when attempting push start" Don't use first gear , Bike will start if you are in second or even third !

I have a friend with a '68 sportster flat tracker that can only be push started ! Takes him less time to start it that way than with a kicker , get it up to a run , jump on and drop the clutch in third and off you go !!

[Tetronator]

Oh, can't you just get one cyl going and the rest will follow due to the first one firing? I might be wrong about this but you can kickstart multicyl bikes, right? So why not pullstart?

Compression on petrol bikes is less than diesel. In the past someone here; if I recall right, said they had kick started their 3cyl diesel bike. don't recall whom

the must weigh more than my buck 50 arse lol: My Yamaha XT 550 single cylinder has a decompression lever but only can be activated by kick starting. Found out you can't even push start it. The compression so high the back tire will lock up on pavement when you release the clutch going down a steep drive.

I can push start my Shadow without any issues, in any gear...

But I was talking about multicyl diesel bikes, I have seen this one at the Hamm treffen.
http://youtu.be/GM-rfTfBBEI?t=1m20s



It has clear signs of beeing kickstarted a lot as the paint on the kickstarter catch plate has chipped off.
I believe it has the 999cc 3cyl Diahatsu car engine.

[coachgeo]

time will tell. Thanx for the help. This gives me a heard start on this part of the project

[Tetronator]

No problem, I'm also interested in this as I want to use the D722 aswell. I'd like for my bike to have a
kick- and electric-starter. But as with the Diahatsu machine it will have one on the gearbox already.

[gilburton]

Just carry jump leads!!

[coachgeo]

Just carry jump leads!!

Mines intended to be an adventure bike. AKA, don't think I can get a jump from a nearby tree,

Granted it's smart to ride in pairs but my work schedule is odd so probably not going to happen.

[Blunt Eversmoke]

Re decompression device:

Is there is no possibility to retrofit your engine with one? If none are ready made, fabricate one yourself. They are pretty primitive, esp. if they have manual release.

Failing that, you could ease your engine starting work by putting a throttle body into the intake duct. Throttling an engine to 1/3 or so makes cranking up to speed easier when compared to throttle completely open (or completely closed, for that matter). Once you have cranked your engine up, "release decompression" by fully opening the throttle and leave it that way.

[gilburton]

I can't find any reference to pull or hand starters for this engine which would suggest they were never fitted with one.
Do you really need one??
After all we happily go all over the world in cars with no hand start.
Providing you make sure your charging system, and the battery, is kept in good condition I don't think you will have any problem.
It has to be remembered that if you start the day with a fully charged battery providing you are not riding with your lights on the battery will retain most of its charge as the engine doesn't really use any voltage apart from the stop solenoid.
I once lost my generator belt on my small diesel car and it happily started and carried us 150 miles home with the charging light on.
It still had plenty of power to restart quite a few times until I got a new belt.
You can never guarantee against unexpected problems but even most bikes no longer have kickstarters and are too large/heavy to push start.
I agree the combination of a CVT and no secondary start system could be a problem as I considered it on my MZ/Robin but I never found it a problem.
I know the type of country you have can be much more remote but in that case I would go with any means of making a breakdown more bearable until rescue comes.
The usual rules would apply of letting someone know where you are going and when you expect to reach your destination.
I don't know about your cell phone system but even in the UK we can get lots of blind spots.

[skoleskibe]

wonder who gets first.
I myself am driving an old MZ Yanmar L100 Comet build. Really enjoy it. however at times it would be nice to have the kickstarter option espessially after i got a bad back last year.
here is what i think could be a solution. I've measured my own pulling length, and its just over 24", i assume 24" is enough espesially when i do have a third of my body mass acting at the end of the pull all the way. What do you guys n' girls think ?

[coachgeo]

kickstarter.JPG

wonder who gets first.
I myself am driving an old MZ Yanmar L100 Comet build. Really enjoy it. however at times it would be nice to have the kickstarter option espessially after i got a bad back last year.
here is what i think could be a solution. I've measured my own pulling length, and its just over 24", i assume 24" is enough espesially when i do have a third of my body mass acting at the end of the pull all the way. What do you guys n' girls think ?

Is this a regular recoil Rope pull starter converted to be pushed with the leg and foot instead of pulled by the hand? If not what happens after the engine starts? with your setup

[Tamber]

Is this a regular recoil Rope pull starter converted to be pushed with the leg and foot instead of pulled by the hand?

It appears that way. Be interesting to see how well it works out.

[skoleskibe]

The idea is that you use the original recoil part (recoil on drawing), and by using the pulley system shown (moving the kickstarter according to arrow), is able to pull the string thats connected to the kickstarter and running over the pulleys, resulting in 24" of pull at approx. 1/3 of ones body mass.
regards

[skoleskibe]

The idea is that you use the original recoil part (recoil on drawing), and by using the pulley system shown (moving the kickstarter according to arrow), is able to pull the string thats connected to the kickstarter in one end and running over the pulleys, resulting in 24" of pull at approx. 1/3 of ones body mass at the other end.

Hope that it makes sense
regards

[coachgeo]

The idea is that you use the original recoil part (recoil on drawing), and by using the pulley system shown (moving the kickstarter according to arrow), is able to pull the string thats connected to the kickstarter in one end and running over the pulleys, resulting in 24" of pull at approx. 1/3 of ones body mass at the other end.

Hope that it makes sense
regards

yes makes since. don't see why it wouldn't work.