Specialized Mountain Bike with Shift Kit

My very first build, I got my shift kit and accessories last Friday and the engine on Monday. Then because I'd ordered a few parts before I had the engine had to make another small order for a new head gasket and head bolts (I ordered 6mm, engine is 8mm)....

2000 Specialized Bike
Zoom Bicycles Engine
Sick Bike Part's Shift Kit

Plus a bunch of other replacement parts - Throttle, Gaskets, Bolt's, rocker switch, air filter and a front engine mount because the down tube is pretty wide.

Spent a little time each evening putting it together, finished it last night and went for my first break in ride this morning down to the beach. Stopped at the beach to let the engine cool a bit. Only had one issue - engine cut out on the way back, took a little while before it would start again, stopped to check (didn't see any problems) and then it started fine so I'll put it down to one of those thing's for now.

 

[ccpomea]

Thanks.

Same advice SBP gave me about waiting for it to break in/Port matching, However I did order the expansion chamber exhaust (arrived today) because of the sale. Will wait for break in and carb tuning before I put it on though.

 

[solfanole]

Nice looking bike! I've got an 05 specialized that is a blast to run. 40 mph with no gears. Am considering the shift kit, but not sure I want that speed.

 

[A-TownTX]

how do you like your shift kit has it put a longer life on your back rim or even noticed a difference I want one but not sure if its worth it.

 

[Hawaii_Ed]

Shift kit is the best mod ever for these kits. Nice build my friend!

 

[ccpomea]

A-Town -

I'm very happy with the shift kit. It's easier to get up hills and my cruising speed is much quieter because engine is operating at a lower rpm.

No idea about longevity of rim - This is my first motorized bike and I installed the shift kit at the same time as the engine so have never had a sprocket mounted to spokes. It hasn't seen much use - Bought a motoped shortly after I finished building this so I tend to take that out.

Going to repaint the frame black I think.

 

[maxsent]

fantastic build! I am currently building just about the same bike. I am using a RAW 66cc and Jack shaft kit on a Specialized bike. having one problem and would like to get your take on it.

the chain from the jack shaft to the chain rings is loose by 1/2 link. did you encounter this problem? and if so how did you solve it?

thanks for any help

 

[adrian101]

Very nice build. I likey alot!

 

[ccpomea]

fantastic build! I am currently building just about the same bike. I am using a RAW 66cc and Jack shaft kit on a Specialized bike. having one problem and would like to get your take on it.

the chain from the jack shaft to the chain rings is loose by 1/2 link. did you encounter this problem? and if so how did you solve it?

thanks for any help

I couldnt get that chain right until I added a 1/2 link.

 

[maxsent]

Well I am sorry to hear about having to add the half link. I just turned the bike upside down and got it tight then used a wood dowell to shim it into place.

I will be bringing a turnbuckle from the top bar and providing tension from the top. I noticed that the SBP kit uses a frame brace and nut to tighten the chain from under the jack shaft pushing it up. mine is looking good as I tried to start it tonight (huph huph). it is staying tight. I will post pics when I get my tensioner installed.