I bought a new Briggs cap for the tank that was not vented, so I drilled a 1/16" hole in it. I didn't rule it out, so I reinstalled the cap that was on the tank originally. Still had the issue. Even tried it with no cap and then the fuel cut-off "off." Didn't run any better. It could well be the needle valve is not seating and fuel is just flooding in. I can change it out and swap main jets and see what happens before I pull the motor and check the timing. I've read a bunch of different forums tonight to see if I can find a clue. Worst case, I get another carb.:doah:
Gilson Trail Bike Build...Resto well kinda sorta, maybe
Brain F@rt!!!!!!--She's off Life Support
I was worship leader this morning and I like to get a good night's sleep so I'm on message....not last night!:laugh: I kept processing through options and what OND suggested above. So it dawned on me sometime around 4 am that if I can get the throttle assembly off the "correct" H60 carb and transfer it to the "wrong" H60 carb (that operated properly), that might solve the problem(s). The little screw can be a pain to get loose on the butterfly and I was hoping that I had properly atoned for my sins and the screws came loose. They did!:thumbsup:
Once the parts were transferred, I mounted the "wrong" carb, adjusted the governor and, as always, started on first pull. took about an hour of fiddling, but I seem to have it balanced out and this baby screams. What a torque monster!:thumbsup: The TAV is smooth as silk and the bike is fast as the dickens (and I didn't open it all the way up)!
:laugh: Still have some adjustments to make: shaft collars, chain tension and the band brake needs work. But it's smooth as silk and a blast to ride.
Here's a video of it on the stand:
https://youtu.be/T61dLhhSoPk
I was worship leader this morning and I like to get a good night's sleep so I'm on message....not last night!:laugh: I kept processing through options and what OND suggested above. So it dawned on me sometime around 4 am that if I can get the throttle assembly off the "correct" H60 carb and transfer it to the "wrong" H60 carb (that operated properly), that might solve the problem(s). The little screw can be a pain to get loose on the butterfly and I was hoping that I had properly atoned for my sins and the screws came loose. They did!:thumbsup:
Once the parts were transferred, I mounted the "wrong" carb, adjusted the governor and, as always, started on first pull. took about an hour of fiddling, but I seem to have it balanced out and this baby screams. What a torque monster!:thumbsup: The TAV is smooth as silk and the bike is fast as the dickens (and I didn't open it all the way up)!
:laugh: Still have some adjustments to make: shaft collars, chain tension and the band brake needs work. But it's smooth as silk and a blast to ride.
Here's a video of it on the stand:
https://youtu.be/T61dLhhSoPk
I'll need to drag my wife outside...and find my helmet before I do a wheelie!:laugh: Thanks for your suggestions....got my brain working overtime. This bike is somethin' else. I compared to a video of Copperhead (with a GC190)....no comparison. I'm gonna have to figure out an easier way to make the TAV brackets: The GC190 would love it.
Finished...for now
The Trail Bike is finished except for the head plate, a draft of which is below. Brakes now work, though I really need to swap the band as it doesn't have the stopping power a new band will have. I ended up making a new bracket for the cable sheath out of angle iron to eliminate any play in the sheath/cable.
The TAV cover got tricked out today. CarPlayLB sent me a surprise in the mail which included Gilson decals. I sprayed a black pearl background which mirrors the original, and applied the dry transfer decal. 3 coats of clear came next.
Really finishes the TAV cover nicely.
Special Thanks: Many parts were made to bring the bike back to life. John Jewell Architectural Metals did the welding. Advanced Coating Solutions suggested the Neon Mellow Yellow and did a beautiful job coating the bike.
Delray provided the bike (at Windber)
Harley's Poppa passed on the 1970 Tecumseh H60.
Gammatag offered up the 323 fork assembly for the new springer front end
RCGuy and UnorthodoxCreations willingly sent me dimensions for the TAV Driven Brackets
Control4userguy helped me with drive ratio calculations (along with a lot of teasing)
Capguncowboy for his helpful Tecumseh timing how-to
Manchester1 did her stuff and delivered an awesome seat
CarPlayLB surprised me with the decal for the TAV cover and, amazingly, the correct chain guard for the bike (different than the 525) and a very cool billet engine/belt tensioner (saved for the next build)
If I missed anyone, my apologies. And thanks to those who responded to my Ring Gap query in the Tecumseh sub-forum.
Here's the draft of the head plate. As is my practice, since the bike is from Wisconsin, I used a Badger in the design.
The Trail Bike is finished except for the head plate, a draft of which is below. Brakes now work, though I really need to swap the band as it doesn't have the stopping power a new band will have. I ended up making a new bracket for the cable sheath out of angle iron to eliminate any play in the sheath/cable.
The TAV cover got tricked out today. CarPlayLB sent me a surprise in the mail which included Gilson decals. I sprayed a black pearl background which mirrors the original, and applied the dry transfer decal. 3 coats of clear came next.
Really finishes the TAV cover nicely.
Special Thanks: Many parts were made to bring the bike back to life. John Jewell Architectural Metals did the welding. Advanced Coating Solutions suggested the Neon Mellow Yellow and did a beautiful job coating the bike.
Delray provided the bike (at Windber)
Harley's Poppa passed on the 1970 Tecumseh H60.
Gammatag offered up the 323 fork assembly for the new springer front end
RCGuy and UnorthodoxCreations willingly sent me dimensions for the TAV Driven Brackets
Control4userguy helped me with drive ratio calculations (along with a lot of teasing)
Capguncowboy for his helpful Tecumseh timing how-to
Manchester1 did her stuff and delivered an awesome seat
CarPlayLB surprised me with the decal for the TAV cover and, amazingly, the correct chain guard for the bike (different than the 525) and a very cool billet engine/belt tensioner (saved for the next build)
If I missed anyone, my apologies. And thanks to those who responded to my Ring Gap query in the Tecumseh sub-forum.
Here's the draft of the head plate. As is my practice, since the bike is from Wisconsin, I used a Badger in the design.
Attachments
The Trail Bike is finished except for the head plate, a draft of which is below. Brakes now work, though I really need to swap the band as it doesn't have the stopping power a new band will have. I ended up making a new bracket for the cable sheath out of angle iron to eliminate any play in the sheath/cable.
The TAV cover got tricked out today. CarPlayLB sent me a surprise in the mail which included Gilson decals. I sprayed a black pearl background which mirrors the original, and applied the dry transfer decal. 3 coats of clear came next.
Really finishes the TAV cover nicely.
Covers came out great Pete..:thumbsup: and this forum does have some of the best folks !
The TAV cover got tricked out today. CarPlayLB sent me a surprise in the mail which included Gilson decals. I sprayed a black pearl background which mirrors the original, and applied the dry transfer decal. 3 coats of clear came next.
Really finishes the TAV cover nicely.
Covers came out great Pete..:thumbsup: and this forum does have some of the best folks !
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