HF engine tips and tricks

[eldo]

Got bike on the road have one problem seems to hesitate from start if I nail it too much it will kill it idles fine read about spark plug wire I took it apart but was afraid if I pulled out wire I would wreck it but it does start you have to choke and open throtle a bit but it starts any body got any ideas. Thanks Larry

 

[Dan]

Seems very sensitive to gap. Just a thunk Larry. Also the slide adjustment wreaks havoc. (screw adjustment behind the idle) Once I got that semi right, starts with one pull and idled great.

 

[eldo]

Worked on bike today found out bike runs better with air cleaner on stll has dead spot when you give a lot of gas from start but not as bad gonna try again tommorow motor needs to be broke in anyway. Are ther any other carbs that will work?

 

[Dan]

dunno Eldo. My first thunk is venting but am sure other folks will have better advice. When I played with the slide screw, did the same thing. Sputtered at starting off WOT but fuel filter was full.

Side note, really took some miles to break in. I did not think a 4 smoke would take that long. But did get stronger an' better with some beat on her.

 

[eldo]

Thanks Dan I was kinda thunking the same thing about breakin seems like it is getting better as we speak lol. Kinda bought another HF motor yesterday they didnt have any in store so got rain ck $89 -20% off coupon come out to about $75 tax and all. Had to do it spent a lot more on a lot less. Larry

 

[Dan]

LOL Larry. True. (Spent more. Got less and now can't find it)

I am finding it funny that having spare parts are making me a lil more adventurous and more willing to try stuff I would normally think about before committing to.

 

[eldo]

Dan I forgot what we were talking about lol.
Your wright I do feel a lot safer knowing another motor is just around the corner. Larry

 

[Dan]

Just saw this thread Karma did about the ignition wire. Great information; http://motorbicycling.com/f37/bad-spark-plug-wires-hf-20016.html#post192779
The plug cap made a lot more umph. Carploa ignition wire would be a whole lot more of a bummer. Gonna replace it today. Been having a similar thing with pulling up to a red light and having to give it a lil gas or stall and an increasing bog at start off.

 

[eldo]

Dan I took mag off and I was affraid to pull out wire thought I was gonna break it. I read karmas thread the other day sounded like good deal having same prob with boging let me know if you try it. I already have new wire. Larry

 

[Dan]

Just swapped it out. Just unscrews. Easy peasie. Bummer part was my spare ignition wire was not as good as the HF's! I hate an' I mean hate a local MC shop. They sold me this wire a few yrs back and is about as good as china girl IG wire. Sold me a 15$ can of brake cleaner and told me you can't run 2 6V batts in series and get 12. Ignition wires only come in black and you can not buy locking clutch handles even though the front of their store is lined with, ya gussed it. ATVs with locking clutches.

Goin' fer a ride. Wire sucks so am not hoping fer a lot but thinking tighter turns and shorter travel might have some effect. Will buy better wire asap

 

[Dan]

Back from test ride. No bogging but no better any thing else, Need better wire. I did get a bug in the eye though. Neither of us was happy. Lets bow our heads for George. Carol dug him out and showed Shelly DeDawg. Who promptly licked and eat George. (presumably to death)

 

[eldo]

Dan your having a **** of a day. Anything stop the bog or just didnt? MIne still bogs.Could be carb but dont think its wire. I dont know. It will get figured out lots smart guys out here Larry

 

[Dan]

enjoying the heck out of the shared trials Larry, TY! I really think the bogging was just loose wire. I did get one wot after but was just fun-running and will report.

Post Script; George is not only dead, he been pooped. Story at 11

Shelly DeDawg approved this message

 

[eldo]

Dan waiting for end of story Larry

 

[karma1968]

if someone gets the chance could they post some pics of the carburetor?

thanks

im looking at getting one.

cheers

 

[eldo]

karma still having trouble with bog? Im thinking carb also Jet? Dont know. Tyre how about you got any input your running those HFs? Larry

 

[karma1968]

i got fed up and stuck the tube for the carb cleaner into the carb when it was running.
that did it its back to normal i just got back from a ride. i have no idea what the **** it was
build up the the intake valve? i have two carburetors with me and they did the same thing. the hissing form the valve is gone when cranked slowly by hand. i think the valve is good. i just may need a new valve spring. but i did rule out the carburetor.

only took 2 week to figure it out lol.

finally added my oil hose. time to put the custom airbox back on

 

[tyrslider]

Hey guys,

The carb is definately barely adequite! When you dump it from full throttle it takes a little time to recover. It's not too bad when you come to a stop but if you dump it for a corner the whack it open again it doesn't seem to like it and takes a little time to recover. Being a butterfly carb (no needle to aid the transition 'tween the idle jet and main jet) it's not designed for what we're doin' so it actually works ok considering.

I keep meaning to play around w/ some different carbs but just haven't had the time. Someone was playing around w/ a Mikuni and working w/ Sudco on it, that sounds promising. Sudco is a great company that's been around for a long time.

Cheers!

 

[karma1968]

im open to ideas :0 its working now im not touching it till i get a better carb

 

[eldo]

Im so confused was gonna change spark wire yesterday started to take apart cked spark for kicks tons of spark put it back together went for 3 rides no bog. So Im gonna go with Tyres idea need different carb Ill try and do some reaserch. I guess these motors wernt made to go on bikes carb would work fine on a water pump lol. Larry