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  1. jlew

    CARB/fuel symptoms

    hello all, wish I was riding :) 1980 CB750C DOHC Stock Airbox, V&H 4-1 had some major idle issues after this winter so I pulled the carb bank and started on cleaning them up. I broke the carbs down to the bank (didnt split) and started methodically inspecting/cleaning/replacing. soaked the...
  2. jlew

    CB750C stock triple?

    1980 CB750C DOHC dropped my stock top tree last night and broke the bitch. :-\ So i'm placing an order @ DCC for a new top tree and some vortex bars ;D (or woodcraft? any pros/cons?) not wanting to mess with physics (she'll win every time..eventually) I'm wanting to replace with STOCK...
  3. jlew

    Blinkers/Controls

    SHOW ME PICS!! Don't know if this classifies for this sub-forum or electrical, this is about design/look ideas. CB750C DOHC My left control has come to its end, I lost the clicky action in the blinker switch.. either the spring broke or the ball on the switch plate hopped out etc etc...so...
  4. jlew

    School me on some exhaust questions

    I remember my grandfather growing up telling me 'build the exhaust to your application; small rpm small pipes - big rpm big pipes' was he talking back pressure back then? wasn't the back pressure to ensure the lead in the gas coated the valve seats? do bikes now with non leaded fuels need back...
  5. jlew

    omg gremlins! i swear i didnt feed them after midnight

    first off - 1980 DOHC CB750C 'Custom' I've had the bike a decade or so; recently started giving me electrical problems. The issue i'm having is screwy brake light/blinkers. with the bike running i have running lights and brake light/headlight. depress the brake and the brake light doesn't...
  6. jlew

    price sound about right? (tire install/balance)

    rant shop #1: $68/hr rate $38 per tire (off bike) $45 (on bike) quoted $220-300 total shop #2: $74/hr rate $39 per tire (off bike) $49 (on bike) quoted $250-300 total shop #3: $70/hr rate $50 per tire (on or off) quoted $200-225 this is just putting rubber on the rim (no current tires on...
  7. jlew

    Exhaust Ideas

    Just finished wrapping my V&H header; i was never to keen on the look of the Supersport muffler on my bike, so i'm going to hawk the muffler and just run header only. I've taken it around the town a few times and it's obnoxiously loud at lower RPMS and hums beautifully cruising at 4k. What...
  8. jlew

    1980 CB750C tire questions

    1980 CB750C Front Stock : 110/90-19 Reat Stock : 130/90-16 I've finally gotten to the limit of my current tires (front especially) from the heat this summer, I was hoping to get through the rest of the season (and still am) but my front has finally achieved a nice band of bald down the center...
  9. jlew

    Electrical Troubleshoot. NO POWER?!

    1980 CB750 DOHC rode out to get some items last night and parked in the garage and shutdown about 10pm (key off, switch off, petcock off) 6am this morning i go to start up, nothing. No indicator lights, no power at all. threw tender on it and i get blinking red light (indicating not charging...
  10. jlew

    yet another battery draw question

    1980 CB750C so i'm looking to reduce the draw on my battery and i would like to calculate what i'm using now and what i can get rid of. current setup: from what I can gather (very limited experience in electrical) Headlight: Stock 65/50w sealed Tail/Stop #1157 running- 14v / 0.59a / 8.3w...
  11. jlew

    odd full throttle bog

    80 CB750 stock (sans V&H 4-1 exhaust i installed 5-6 years ago) 99% of my riding is on the freeway to and from work. This week we have had vast fluctuations in weather/humidity (45 in the morn to 90 in the afternoon) and the other day on my way to work in 5th gear @ 6.5k RPM (no idea mph...
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