Nirve switchblade in progress
- Thread starter Fang
- Start date
MotorBicycleRacing
Well-Known Member
Awesome chopper!
I would get rid of the chain tensioner on the upper chain run.
I would get rid of the chain tensioner on the upper chain run.
That chain tensioner is doing absolutely nothing but taking up space. Either remove it or relocate it to the lower chain run. I advised you on this in your previous thread.
Better yet, get rid of it. You have almost two inches of drop out length to adjust chain tension. Why insist on using a tensioner?
Tom
Better yet, get rid of it. You have almost two inches of drop out length to adjust chain tension. Why insist on using a tensioner?
Tom
The_Aleman
Active Member
Congrats on your first build from a fellow Nirve rider! The Switchblade is definitely a tough bike to motorize and it sure looks nice when done IMHO!
I agree with the above posts:
Tensioner/idlers on the torque part of the chain is a dubious move unless you spend more time starting your engine than you do using it to assist you
I agree with the above posts:
Tensioner/idlers on the torque part of the chain is a dubious move unless you spend more time starting your engine than you do using it to assist you
mapbike
Well-Known Member
I want to also ring in here and say that is making a nice looking bike build, no good reason at this point to say much about the tensioner/idler so I'll just say that I completely agree with all other comments on the subject so far, in 5 words....... (move it or loose it....!)
Great looking bike.....
Map
Great looking bike.....
Map
Well I'm not using it so much as a tensioner but more a chain guide, I removed it as well as a few links as suggested but I had the chain falling off every ride since my engine mount was slipping a bit. After moving the engine mount I tried to run it without the tensioner and it still wouldn't keep the chain on the sprocket (bike came to a screeching halt after the chain became bound up in the coaster arm from losing the master link on the road)
Right now there's tension on the bottom chain and I'm using the tensioner to guide the chain onto the flower nut (it was slightly off and making a popping noise when the chain entered the engine)
But I would like to take it off since it looked much cleaner without it!
I'm almost positive the chain was coming off since the chain wasn't perfectly centered on the sprocket, would anyone suggest using the mani mechanic hub set up? I've heard a lot of bad and good things about em
The_Aleman
Active Member
A hub adapter would give you some L-R adjustment. You just need to make sure your engine output sprocket is straight with the wheel sprocket.
Here is a some good information on how to properly align the chain/sprockets. The sprockets must be aligned so a straightedge will contact both sides of both sprockets when laid flat against them. Any offset will promote chain derailment, chain and sprocket wear and rough/noisy running. Check this link for details.
http://www.maintenanceresources.com/referencelibrary/rollerchaindrives/installationpg1.htm
Tom
http://www.maintenanceresources.com/referencelibrary/rollerchaindrives/installationpg1.htm
Tom
Here's a picture a friend took of me trying out the new dot helmet I picked up new on craigslist for $30 as well as a faux leather roll bag I got from walmart for $20, I also installed my new banana seat and sissy bar set up but you cant see em in this pic
Attachments
mapbike
Well-Known Member
Looking good man..... get all the bugs worked out and your gonna have a sharp ride, I wish I could come across a good deal on one of those bikes, I'd jump all over it and have a cool chopper in my fleet to...LOL!
Map
mapbike
Well-Known Member
The 212cc engine is a much more powerful engine than the 79cc engine, I have two of the 79cc Grey Hound engines still in the box that I have plans for in the future, and I have two of the 196cc Grey Hound engines, one of them has several modifications custom billet rod 14cc head ported, flat top piston, timing advanced 6 degrees, 1.2 ratio rockers, well tuned carb and K&N style filter, and custom built exhaust, this engine pushed my home built go Kart a 50+MPH with my 200lbs on it useing a Noram clutch 15T drive to a 60T driven and 13" tall tires on the rear.
I said all of this to say, if you want power the 212cc engine can give all you'll need on a bike with only a few mods, the 79cc will make a great bike engine also, but it will never even come close to doing what the 212cc engine will do, the bike does have to be built much stronger for the 212cc engine also.
Map
mapbike
Well-Known Member
If you have the tools for the mods required and plan to do things right so the bike will be safe I agree,
Map
There's no doubt the 212 will fit in my frame, I think I could squeeze at least 2 more of these 66cc's into this gap
Do you have any posts with your build's in progress?
From what I understand so far a clutch and jack shaft are required
BelayBoy
New Member
just type in 212cc in search box there is lot of links
here is the one
http://motorbicycling.com/showthread.php?t=46933
get ready to spend some money
here is the one
http://motorbicycling.com/showthread.php?t=46933
get ready to spend some money
I think I might wait on the 212 for a bit......hahaha
So I've made some some decent progress in the last couple weeks
Got a banana seat and sissy bar
The sissy bar goes over the seat but it looks much cleaner under it so I plan on buying the under seat setup soon
I got a roll bag at walmart for 20$
Extended exhaust pipe (not installed yet due to pedal clearance)
I also got a 6" offroad light from harbor freight which I plan to convert to basically a giant flashlight
Tomorrow morning I'm picking up a gas tank from the Jesse James edition Schwinn stingray for $25 from craigslist
With a bit of tinkering this lady should be looking good!
Here's a picture of the new seat
as well as a poorly ms paint edit on how i want it to look
So I've made some some decent progress in the last couple weeks
Got a banana seat and sissy bar
The sissy bar goes over the seat but it looks much cleaner under it so I plan on buying the under seat setup soon
I got a roll bag at walmart for 20$
Extended exhaust pipe (not installed yet due to pedal clearance)
I also got a 6" offroad light from harbor freight which I plan to convert to basically a giant flashlight
Tomorrow morning I'm picking up a gas tank from the Jesse James edition Schwinn stingray for $25 from craigslist
With a bit of tinkering this lady should be looking good!
Here's a picture of the new seat
as well as a poorly ms paint edit on how i want it to look
Attachments
So a little update as of today
Picked up the Jesse James tank for $25 this morning
looks like I will need to widen the back a bit since it's a bit too narrow (it's sitting a little high in the back as you can tell from the pic)
I also put the exhaust on the way it will be routed after its bent a bit
This week I will finish the headlight mount as well as paint the forks flat black after I got at em with the ol grinder flap disc
I'm really liking the way the tank looks in the picture, I'm sure it will look better once the rear is sitting how it should!
Anyone have any suggestions on how I should mount it besides just welding it to the frame?
Picked up the Jesse James tank for $25 this morning
looks like I will need to widen the back a bit since it's a bit too narrow (it's sitting a little high in the back as you can tell from the pic)
I also put the exhaust on the way it will be routed after its bent a bit
This week I will finish the headlight mount as well as paint the forks flat black after I got at em with the ol grinder flap disc
I'm really liking the way the tank looks in the picture, I'm sure it will look better once the rear is sitting how it should!
Anyone have any suggestions on how I should mount it besides just welding it to the frame?
