hf 79cc vertical mount
- Thread starter rhodeisland
- Start date
rhodeisland
New Member
The weather was finally nice this afternoon so after working on the bikes I went for a ride on the drive.
The bike is riding on a 78 jet in the carb with a straight pipe while the exhaust gets fixed.
The back wheel got shimmed with washers on the back axle to get more chain clearance between the tire and frame.
Yesterday when I was out in the sea breeze of 20+ miles per hour the bike didn't like the head wind but with the breeze to my back I had no problem keeping up to traffic.
After the carb gets jetted and the exhaust gets fixed I think the gear ratios will have to get adjusted since take off is slow and long slight inclines keep the engine from getting to high rpm.
I was thinking about changing the sprocket after the clutch instead of the rear wheel sprocket,just a thought any other thoughts? http://s1282.photobucket.com/user/r...3&page=1&_suid=136580554709204645472858301296
The bike is riding on a 78 jet in the carb with a straight pipe while the exhaust gets fixed.
The back wheel got shimmed with washers on the back axle to get more chain clearance between the tire and frame.
Yesterday when I was out in the sea breeze of 20+ miles per hour the bike didn't like the head wind but with the breeze to my back I had no problem keeping up to traffic.
After the carb gets jetted and the exhaust gets fixed I think the gear ratios will have to get adjusted since take off is slow and long slight inclines keep the engine from getting to high rpm.
I was thinking about changing the sprocket after the clutch instead of the rear wheel sprocket,just a thought any other thoughts? http://s1282.photobucket.com/user/r...3&page=1&_suid=136580554709204645472858301296
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rhodeisland
New Member
I was kind of thinking about a larger one to get a easier take off and higher rpm on the hills the speed is ok but stop n go in town would suck with this setup.
rhodeisland
New Member
Yes I have a 22tooth going into the jackshaft on the mini hub so I was wondering about a 24 or 26 tooth.
Also todays pictures are in my Bike Ride album.
Also todays pictures are in my Bike Ride album.
rhodeisland
New Member
I put a 28 tooth sprocket on the jackshaft after the clutch today.
The bike rode a lot better with the new sprocket because it took off at intersections and handled hill climbs a lot smoother.
The top end speed was a little slower as expected so the next thing I may play with might be to change the 9 tooth output sprocket with a 10 or 11 tooth sprocket.
The bike rode a lot better with the new sprocket because it took off at intersections and handled hill climbs a lot smoother.
The top end speed was a little slower as expected so the next thing I may play with might be to change the 9 tooth output sprocket with a 10 or 11 tooth sprocket.
rhodeisland
New Member
I appreciate that but I don't think I'll get past Warwick for a while since work is keeping me on the island most of the week.
So did you play with the drive sprocket on your bike for speed or drive ability?
rhodeisland
New Member
http://s1282.photobucket.com/user/rhodeislandnewport/library/Bike Fleet?sort=3&page=1
Just an update I have been tweaking the chain clearance, I left the ratio at 28 tooth on the reduction because this works pretty good for going through town.
Out of these bikes the green one with a 4G tapered shaft is the fastest and takes off with me on it. I get about 40 plus.
The HF Predator 79cc has better torque going against the wind and up hills.
Just an update I have been tweaking the chain clearance, I left the ratio at 28 tooth on the reduction because this works pretty good for going through town.
Out of these bikes the green one with a 4G tapered shaft is the fastest and takes off with me on it. I get about 40 plus.
The HF Predator 79cc has better torque going against the wind and up hills.